DTC DETECTION LOGIC AND CONDITIONS [MZR 2.5]

DTC No.	Condition	Detection condition
P0011:00	CMP timing over-advanced	• The actual valve timing is over-advanced by 15 °from the target valve timing for specified period when the oil control valve (OCV) is controlled in the maximum valve timing retard condition. MONITORING CONDITIONS ― Engine speed: below 4,000 rpm ― ECT: 70—110 °C {158—230 °F}
P0012:00	CMP timing over-retarded	• The actual valve timing is over-retarded by 10 ° from the target valve timing for specified period when the oil control valve (OCV) system control is within the feedback range. MONITORING CONDITIONS ― Engine speed: below 4,000 rpm ― ECT: 70—110 °C {158—230 °F}
P0030:00	A/F sensor heater control circuit problem	• OBD system monitor the output signal voltage from oxygen sensor which is proportion to the element impedance of oxygen sensor. • If the output signal voltage above 1.5 V after specified time from engine start, heater performance considered failed. MONITORING CONDITIONS ― Battery voltage: 10—18 V ― Time from engine start: 74 s or more
P0031:00	A/F sensor heater control circuit low input	• The PCM monitors the A/F sensor heater output voltage. If the PCM turns the A/F sensor heater off but the A/F sensor heater circuit remains low voltage, the PCM determines that the A/F sensor heater circuit has a malfunction.
P0032:00	A/F sensor heater control circuit high input	• The PCM monitors the A/F sensor heater output voltage. If the PCM turns the A/F sensor heater on but the A/F sensor heater circuit remains high voltage, the PCM determines that the A/F sensor heater circuit has a malfunction.
P0037:00	HO2S heater control circuit low input	• The PCM monitors the HO2S heater output voltage. If the PCM turns the HO2S heater off but the HO2S heater circuit remains low voltage, the PCM determines that the HO2S heater circuit has a malfunction.
P0038:00	HO2S heater control circuit high input	• The PCM monitors the HO2S heater output voltage. If the PCM turns the HO2S heater on but the HO2S heater circuit remains high voltage, the PCM determines that the HO2S heater circuit has a malfunction.
P0101:00	MAF sensor circuit range/performance problem	• PCM monitors mass intake air flow amount when the engine is running. ― If the mass intake air flow amount is above 51 l/s for 5 s and the engine speed is below 2,000 rpm with the engine running, the PCM determines that the detected mass intake air flow amount is too high. ― If the mass intake air flow amount is below 8.5—69.1 l/s (The value depends on engine speed.) for 5 s and the engine speed is above 1,000 rpm with the engine running and the throttle opening angle above 50%, the PCM determines that detected the mass intake air flow amount is too low.
P0102:00	MAF sensor circuit low input	• The PCM monitors input voltage from the MAF sensor when the engine running. If the input voltage is below 0.21 V, the PCM determines that the MAF circuit has a malfunction.
P0103:00	MAF sensor circuit high input	• The PCM monitors the input voltage from the MAF sensor when the engine running. If the input voltage is above 4.9 V, the PCM determines that the MAF circuit has a malfunction.
P0107:00	MAP sensor circuit low input	• The PCM monitors the input voltage from the MAP sensor. If the input voltage is below 0.1 V, the PCM determines that the MAP sensor circuit has a malfunction.
P0108:00	MAP sensor circuit high input	• The PCM monitors the input voltage from the MAP sensor. If the input voltage is above 4.9 V, the PCM determines that the MAP sensor circuit has a malfunction.
P0111:00	IAT sensor circuit range/performance problem	• If the intake air temperature is higher than the engine coolant temperature by 40 °C {72 °F} for 60 s with key on, the PCM determines that there is a IAT sensor performance problem.
P0112:00	IAT sensor circuit low input	• The PCM monitors the IAT sensor signal. If the PCM detects that the IAT sensor voltage is below 0.16 V, the PCM determines that the IAT sensor circuit has a malfunction.
P0113:00	IAT sensor circuit high input	• The PCM monitors the IAT sensor signal. If the PCM detects that the IAT sensor voltage is above 4.8 V, the PCM determines that IAT sensor circuit has a malfunction.
P0117:00	ECT sensor circuit low input	• The PCM monitors the ECT sensor signal. If the PCM detects that the ECT sensor voltage is below 0.2 V, the PCM determines that the ECT sensor circuit has a malfunction.
P0118:00	ECT sensor circuit high input	• The PCM monitors the ECT sensor signal. If the PCM detects that the ECT sensor voltage is above 4.6 V, the PCM determines that the ECT sensor circuit has a malfunction.
P0122:00	TP sensor No.1 circuit low input	• If the PCM detects that the TP sensor No.1 voltage is below 0.2 V while the engine is running, the PCM determines that the TP sensor No.1 circuit has a malfunction.
P0123:00	TP sensor No.1 circuit high input	• If the PCM detects the TP sensor No.1 voltage is to be above 4.85 V after switch the ignition to ON, PCM determines that the TP sensor No.1 circuit has a malfunction.
P0125:00	Insufficient coolant temperature for closed loop fuel control	• The PCM monitors the ECT sensor signal after engine is started while the engine is cold. If the engine coolant temperature does not reach the expected temperature for a specified period, the PCM determines that it has taken an excessive amount of time for the engine coolant temperature to reach the temperature necessary to start closed-loop fuel control.
P0131:00	A/F sensor circuit low input	• The PCM monitors the input voltage from the A/F sensor when the engine is running. If the input voltage is less than 1.0 V for 2 s, the PCM determines that the A/F sensor circuit voltage is low.
P0132:00	A/F sensor circuit high input	• The PCM monitors the input voltage from the A/F sensor when the engine is running. If the input voltage is above 1.0 V for 2 s, the PCM determines that the A/F sensor circuit voltage is high.
P0133:00	A/F sensor circuit slow response	• A/F sensor malfunction is detected by measuring of the average frequency of A/F sensor signal, time required to pass from rich to lean, time required to pass from lean to rich. • The average frequency of A/F sensor signal is more than the threshold value.
P0134:00	A/F sensor circuit no activity detected	• The PCM monitors the element impedance A/F sensor when the following conditions are met. Under the following monitoring conditions, the element impedance more than specified value, the PCM determines that the A/F sensor is not activated.
P0137:00	HO2S circuit low input	• The PCM monitors the input voltage from the HO2S. If the input voltage from the HO2S is below 0.1 V with the HO2S fuel injection feedback value is 3% or more for 41.6 s, the PCM determines that the HO2S circuit input is low. • The PCM monitors the input voltage from the HO2S when the following conditions are met. Under the following monitoring conditions, if the input voltage from the HO2S does not even exceed 0.1 V though the short term fuel trim is controlled up to 20.5% for 9.6 s, the PCM determines that the HO2S circuit input is low. MONITORING CONDITIONS ― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F sensor, HO2S and TWC Repair Verification Drive Mode) ― Following conditions are met for above 20.8 s; • Engine speed: above 1,500 rpm • ECT: above 70 °C {158 °F} • HO2S heater control: ON
P0138:00	HO2S circuit high input	• The PCM monitors input voltage from HO2S. If the input voltage from the HO2S is above 1.2 V for 0.8 s, the PCM determines that circuit input is high.
P0139:00	HO2S circuit slow response	• The PCM monitors the rich (0.55 V) to lean (0.3 V) response time of the HO2S. The PCM measures the response time when the following conditions are met. The PCM determines a HO2S response deterioration malfunction when the measured response time is more than 0.08 s for 2 of 3 times. MONITORING CONDITIONS ― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode) ― Following conditions are met: • During deceleration fuel cut • Estimated temperature of the zirconia element inside the HO2S: above 450 °C {842 °F} • The PCM monitors for a time-out malfunction (when HO2S remains above 0.2 V for longer than a specified period of time during fuel cut control). The PCM measures the amount of time from when the following conditions are met until the HO2S output voltage drops below 0.2 V. The PCM determines a HO2S time-out malfunction when the detected time is more than 4 s for 2 of 3 times. MONITORING CONDITIONS ― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode) ― Following conditions are met: • During deceleration fuel cut • Estimated temperature of the zirconia element inside the HO2S: above 450 °C {842 °F}
P0140:00	HO2S circuit no activity detected	• The PCM monitors the input voltage from the HO2S when the following conditions are met. Under the following monitoring conditions, if the input voltage from the HO2S does not even exceed 0.55 V though the short term fuel trim is controlled up to 20.5% for 9.6 s, the PCM determines that sensor circuit is not activated. MONITORING CONDITIONS ― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F sensor, HO2S and TWC Repair Verification Drive Mode) ― Following conditions are met for above 20.8 s; • Engine speed: above 1,500 rpm • ECT: above 70 °C {158 °F}
P0222:00	TP sensor No.2 circuit low input	• If the PCM detects the TP sensor No.2 voltage is to be below 0.2 V after switch the ignition to ON, the PCM determines that TP sensor No.2 circuit has a malfunction.
P0223:00	TP sensor No.2 circuit high input	• If the PCM detects the TP sensor No.2 voltage is to be above 4.85 V after switch the ignition to ON, the PCM determines that the TP sensor No.2 circuit has a malfunction.
P0300:00	Random misfire detected	• The PCM monitors CKP sensor input signal interval time. The PCM calculates the change of interval time for each cylinder. If the change of interval time exceeds the preprogrammed criteria, the PCM detects a misfire in the corresponding cylinder. While the engine is running, the PCM counts the number of misfires that occurred at 200 crankshaft revolutions and 1,000 crankshaft revolutions and calculates the misfire ratio for each crankshaft revolution. If the ratio exceeds the preprogrammed criteria, the PCM determines that a misfire, which can damage the catalytic converter or affect emission performance, has occurred.
P0301:00	Cylinder No.1 misfire detected	• The PCM monitors the CKP sensor input signal interval time. The PCM calculates the change of interval time for each cylinder. If the change of interval time exceeds the preprogrammed criteria, the PCM detects a misfire in the corresponding cylinder. While the engine is running, the PCM counts the number of misfires that occurred at 200 crankshaft revolutions and 1,000 crankshaft revolutions and calculates the misfire ratio for each crankshaft revolution. If the ratio exceeds the preprogrammed criteria, the PCM determines that a misfire, which can damage the catalytic converter or affect emission performance, has occurred.
P0302:00	Cylinder No.2 misfire detected
P0303:00	Cylinder No.3 misfire detected
P0304:00	Cylinder No.4 misfire detected
P0327:00	KS circuit low input	• The PCM monitors input signal from the KS when the engine is running. If the input voltage is below 0.2 V the PCM determines that the KS circuit has a malfunction.
P0328:00	KS circuit high input	• The PCM monitors the input signal from the KS when the engine is running. If the input voltage is above 4.8 V the PCM determines that KS circuit has a malfunction.
P0335:00	CKP sensor circuit problem	• If the PCM does not receive the input voltage from the CKP sensor for 4.2 s while the MAF is 1.95 g/s {0.25 lb/min.} or above, the PCM determines that the CKP sensor circuit has a malfunction.
P0340:00	CMP sensor circuit problem	• The PCM monitors the input voltage from the CMP sensor when the engine is running. If the PCM does not receive the input voltage from the CMP sensor while the PCM receives the input signal from the CKP sensor, the PCM determines that the CMP sensor circuit has a malfunction.
P0403:00	EGR control circuit problem	• The PCM monitors the input voltage from EGR valve. If the voltage remains low or high, the PCM determines that the EGR valve circuit has a malfunction.
P0421:00	Warm up catalyst system efficiency below threshold	• The PCM monitors the input voltage from the middle A/F sensor and the HO2S output current when the following conditions are met. If the input voltage change is extremely large compared to the output current change, the PCM determines that the catalyst system has deteriorated. MONITORING CONDITIONS ― Calculated TWC temperature: more than 400 °C {752 °F} ― Engine speed: 1,500—3,000 rpm ― LOAD: 17—50% (MTX), 20—50% (ATX) (at engine speed 2,000 rpm) ― Time with purge control system does not operate: more than 3.2 s
P0443:00	Purge solenoid valve circuit problem	• The PCM monitors the purge solenoid valve control signal voltage and current. If the following conditions are met, the PCM determines that there is the purge solenoid valve control circuit problem. ― The PCM turns the purge solenoid valve off, but the voltage of the purge solenoid valve control signal remains low. ― The PCM turns the purge solenoid valve on, but the current of the purge solenoid valve control signal remains high.
P0480:00	Cooling fan relay No.1 control circuit malfunction	• The PCM monitors the cooling fan relay No.1 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No.1 control circuit problem. ― The PCM turns the cooling fan relay No.1 off, but the voltage of the cooling fan relay No.1 control signal remains low. ― The PCM turns the cooling fan relay No.1 on, but the current of the cooling fan relay No.1 control signal remains high.
P0481:00^*1	Cooling fan relay No.2 and No.3 control circuit malfunction	• The PCM monitors the cooling fan relay No.2 and No.3 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No.2 and No.3 control circuit problem. ― The PCM turns the cooling fan relay No.2 and No.3 off, but the voltage of the cooling fan relay No.2 and No.3 control signal remains low. ― The PCM turns the cooling fan relay No.2 and No.3 on, but the current of the cooling fan relay No.2 and No.3 control signal remains high.
P0482:00^*2	• Cooling fan relay No.2 control circuit malfunction (With two cooling fan relays) • Cooling fan relay No.4 control circuit malfunction (With four cooling fan relays)	With two cooling fan relays • The PCM monitors the cooling fan relay No.2 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No.2 control circuit problem. ― The PCM turns the cooling fan relay No.2 off, but the voltage of the cooling fan relay No.2 control signal remains low. ― The PCM turns the cooling fan relay No.2 on, but the current of the cooling fan relay No.2 control signal remains high. With four cooling fan relays • The PCM monitors the cooling fan relay No.4 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No.4 control circuit problem. ― The PCM turns the cooling fan relay No.4 off, but the voltage of the cooling fan relay No.4 control signal remains low. ― The PCM turns the cooling fan relay No.4 on, but the current of the cooling fan relay No.4 control signal remains high.
P0500:00	VSS circuit problem	• If an error in the wheel speed signal from the ABS HU/CM or DSC HU/CM is detected by CAN when the following conditions are met: ― Neutral switch and CPP switch: OFF (MTX) ― Shift range: except P, N or R position (ATX) ― Absolute load: above 40% ― Engine speed: 2,000 rpm or above ― Brake switch: OFF
P0505:00^*5	IAC system problem	• The PCM cannot control idle speed toward target idle speed while KOER self test.
P0506:00	IAC system RPM lower than expected	• The actual idle speed is lower than expected by 100 rpm for 14 s, when the brake pedal is depressed (brake switch is on). Note • If the atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or the intake air temperature is below −10 °C {14 °F}, the PCM cancels the diagnosis of DTC P0506:00.
P0507:00	IAC system RPM higher than expected	• The actual idle speed is higher than expected by 200 rpm for 14 s, when the brake pedal is depressed (brake switch is on). Note • If the atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or the intake air temperature is below −10 °C {14 °F}, the PCM cancels the diagnosis of DTC P0507:00.
P0571:00^*7	Brake switch circuit problem	• The PCM monitors switching in conjunction with brake switches No.1 and No.2. If either No.1 or No.2 do not switch for a continuous five times even though either No.1 or No.2 is switched from off to on or from on to off, P0571:00 is detected.
P0579:00^*3	Cruise control multi-function input circuit range/performance problem	• The PCM monitors the input signal from the cruise control switch. If the input signal does not change for 120 s, the PCM determines that the cruise control switch circuit has a malfunction.
P0581:00^*3	Cruise control multi-function input circuit high input	• The PCM monitors the input signal from the cruise control switch. If the PCM detects that the cruise control switch voltage is above 4.84 V, the PCM determines that the cruise control switch circuit has a malfunction.
P0600:00	Serial communication link	• The PCM internal malfunction.
P0601:00	PCM memory check sum error	• PCM internal memory check sum error.
P0602:00	PCM programming error	• No configuration data in the PCM. Note • If the “PCM CONFIGURATION” is successful, the PCM stores DTC P0602:00 and illuminates the MIL (system is normal). Clear DTC P0602:00 using the M-MDS after the “PCM CONFIGURATION”. • The MIL goes out after three drive cycles with no failure (DTCs remain in PCM).
P0604:00	PCM RAM error	• PCM internal RAM malfunction.
P0606:00	PCM processor error	• The PCM internal CPU malfunction. • Abnormal voltage applied to the PCM ignition switch terminal.
P0607:00	PCM performance problem	• The PCM internal malfunction.
P0610:00	PCM vehicle configuration error	• The PCM data configuration error.
P0638:00	Throttle valve actuator control circuit range/performance problem	• The PCM compares the actual TP with the target TP when the engine is running. If the difference is more than the specification, the PCM determines that there is a throttle valve actuator control circuit range/performance problem.
P064D:00	Internal control module A/F sensor processor performance problem	• The A/F sensor IC integrated in the PCM converts to the voltage value for the fuel control and for the diagnosis based on the A/F sensor signal current and sends to the CPU (integrated in the PCM). The CPU switches the voltage value for the fuel control and for the diagnosis in the fuel control once during one drive cycle, and compares the voltage values. If the difference of compared value is below threshold, the PCM determines that the signal circuit between CPU and A/F sensor control IC has malfunction. MONITORING CONDITIONS ― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode) ― Following conditions are met: • Engine is running or ignition switch is ON • A/F sensor signal voltage is 1.2 V—battery voltage-1.2 V (PCM terminals 2Z, 2AC, 2AD)
P0661:00	Variable intake air solenoid valve circuit low input	• The PCM monitors the variable intake air solenoid valve control signal. If the PCM turns variable intake air solenoid valve off but voltage still remains low, the PCM determines that variable intake air solenoid valve circuit has malfunction.
P0662:00	Variable intake air solenoid valve circuit high input	• The PCM monitors the variable intake air solenoid valve control signal. If the PCM turns variable intake air solenoid valve on but current at PCM terminal still remains high, the PCM determines that the variable intake air solenoid valve circuit has malfunction.
P0685:00	Main relay control circuit open	• This DTC sets when the ignition switch position run circuit indicates the key is in the off, ACC, or LOCK position, and the amount of time the PCM remains powered through the PCM power relay exceeds a predetermined amount of time.
P0703:00	Brake switch input circuit problem	• The PCM monitors the input signal from the brake switch No.1. If the input signal does not change while following decelerating 8 times, the PCM determines that there is a brake switch No.1 input circuit problem. MONITORING CONDITIONS ― Vehicle speed: become from above 30 km/h {19 mph}to 30 km/h {19 mph} or less ― Deceleration rate: exceeds 3.8 km/h {2.4 mph} per 0.1 s
P0704:00^*4	CPP switch input circuit problem	• The PCM monitors changes in input voltage from the CPP switch. If the PCM does not detect the voltage changes while the vehicle runs with vehicle speed above 30 km/h {19 mph} and stops 8 times alternately, the PCM determines that the CPP switch circuit has a malfunction.
P0850:00^*4	Neutral switch input circuit problem	• The PCM monitors changes in input voltage from the neutral switch. If the PCM does not detect the voltage changes while driving the vehicle at a vehicle speed above 30 km/h {19 mph}and clutch pedal turns press and depress 10 times repeatedly, the PCM determines that the neutral switch circuit has a malfunction.
P1260:00	Immobilizer system problem	• The instrument cluster detects an immobilizer system malfunction. (Vehicles without advanced keyless entry and push button start system) • The keyless control module detects an immobilizer system malfunction. (Vehicles with advanced keyless entry and push button start system)
P2009:00	Variable tumble solenoid valve circuit low input	• The PCM monitors variable tumble solenoid valve control signal. If the PCM turns variable tumble solenoid valve off but voltage still remains low, the PCM determines that variable tumble solenoid valve control circuit has malfunction.
P2010:00	Variable tumble solenoid valve circuit high input	• The PCM monitors the variable tumble solenoid valve control signal. If the PCM turns variable tumble solenoid valve on but the current still remains high, the PCM determines that the variable tumble solenoid valve control circuit has malfunction.
P2088:00	OCV circuit low input	• The PCM monitors the OCV voltage. If the PCM detects the OCV control voltage (calculated from the OCV) is below the specification voltage (calculated from the battery positive voltage), the PCM determines that the OCV circuit has a malfunction.
P2089:00	OCV circuit high input	• The PCM monitors the OCV current. If the PCM detects that the OCV control current (calculated from the OCV) is above the specification current, the PCM determines that the OCV circuit has a malfunction.
P2096:00	Target A/F feedback system too lean	• The PCM monitors the target A/F fuel trim when under the target A/F feedback control. If the fuel trim is more than the specification, the PCM determines that the target A/F feedback system is too lean.
P2097:00	Target A/F feedback system too rich	• The PCM monitors the target A/F fuel trim when under the target A/F feedback control. If the fuel trim is less than specification, the PCM determines that the target A/F feedback system is too rich.
P2100:00	Throttle valve actuator circuit open	• The PCM monitors the electronic throttle valve actuator current. If the PCM detects the electronic throttle valve actuator current is below the threshold current, the PCM determines that the electronic throttle valve actuator circuit has a malfunction.
P2101:00	Throttle valve actuator circuit range/performance problem	• The PCM turns the main relay on but the input voltage is 5.0 V or less, the PCM determines that the main relay control circuit voltage is low. • The PCM monitors the input voltage from the main relay. The PCM turns the main relay off but the input voltage is 5.0 V or more, the PCM determines that the main relay control circuit voltage is high.
P2105:00	Throttle valve actuator control system-forced engine shutdown	• The throttle valve actuator control system is in the failure mode effects management mode.
P2107:00	Throttle valve actuator control module processor error	• Throttle valve actuator control module internal processor error
P2108:00	Throttle valve actuator control module performance error	• If the PCM detects either of the following conditions, the PCM determines that throttle valve actuator control system has a malfunction. ― TP sensor power supply voltage below 4.4 V ― TP sensor No.1 output voltage below 0.20 V or above 4.85 V (DTC P0122:00 or P0123:00) ― PCM internal circuit for TP sensor No.1 input circuit malfunction.
P2119:00	Throttle valve actuator control throttle body range/performance problem	• The PCM compares the TP with the default TP when switch the ignition to off. If the TP is higher than the default TP, the PCM determines that there is a throttle valve actuator control throttle body range/performance problem.
P2122:00	APP sensor No.1 circuit low input	• The PCM monitors the input voltage from APP sensor No.1 when the engine is running. If the input voltage is less than 0.2 V, the PCM determines that the APP sensor No.1 circuit input voltage is low.
P2123:00	APP sensor No.1 circuit high input	• The PCM monitors the input voltage from APP sensor No.1 when the engine is running. If the input voltage is above 4.8 V, the PCM determines that the APP sensor No.1 circuit input voltage is high.
P2127:00	APP sensor No.2 circuit low input	• The PCM monitors the input voltage from APP sensor No.2 when the engine is running. If the input voltage is less than 0.2 V , the PCM determines that the APP sensor No.2 circuit has a malfunction.
P2128:00	APP sensor No.2 circuit high input	• The PCM monitors the input voltage from APP sensor No.2 when the engine is running. If the input voltage is more than 4.8 V , the PCM determines that the APP sensor No.2 circuit has a malfunction.
P2135:00	TP sensor No.1/No.2 voltage correlation problem	• The PCM compares the input voltage from TP sensor No.1 with the input voltage from TP sensor No.2 when the engine is running. If the difference is more than the specification, the PCM determines that there is a TP sensor No.1/No.2 voltage correlation problem.
P2138:00	APP sensor No.1/No.2 voltage correlation problem	• The PCM compares the input voltage from APP sensor No.1 with the input voltage from APP sensor No.2 when the engine is running. If the difference is more than the specification, the PCM determines that there is an APP sensor No.1/No.2 angle correlation problem.
P2177:00	Fuel system too lean at off idle	• PCM monitors short term fuel trim (SHRTFT), long term fuel trim (LONGFT) during closed loop fuel control at off-idle. If the LONGFT and the sum total of these fuel trims exceed preprogrammed criteria, the PCM determines that fuel system is too lean at off-idle.
P2178:00	Fuel system too rich at off idle	• PCM monitors short term fuel trim (SHRTFT), long term fuel trim (LONGFT) during closed loop fuel control at off-idle. If the LONGFT and the sum total of these fuel trims exceed the preprogrammed criteria, the PCM determines that fuel system is too rich at off-idle.
P2187:00	Fuel system too lean at idle	• The PCM monitors short term fuel trim (SHRTFT) and long term fuel trim (LONGFT) during closed loop fuel control at idle. If the LONGFT and the sum total of these fuel trims or SHRTFT exceed the preprogrammed criteria, the PCM determines that fuel system is too lean at idle.
P2188:00	Fuel system too rich at idle	• PCM monitors short term fuel trim (SHRTFT), long term fuel trim (LONGFT) during closed loop fuel control at idle. If the LONGFT and the sum total of these fuel trims or SHRTFT exceed preprogrammed criteria, the PCM determines that fuel system is too rich at idle.
P2195:00	A/F sensor signal stuck lean	• The PCM monitors the equivalence ratio output when the following conditions are met. If the equivalence ratio is more than 1.15 for 25 s, the PCM determines that the A/F sensor signal remains lean. ― ECT: more than 70 °C {158 °F} ― Engine speed: 1,000—3,200 rpm ― Absolute load: 20—62.5 % ― Output voltage from the HO2S: more than 0.7 V
P2196:00	A/F sensor signal stuck rich	• The PCM monitors the equivalence ratio output when the following conditions are met. If the equivalence ratio is less than 0.85 for 25 s, the PCM determines that the A/F sensor signal remains rich. MONITORING CONDITIONS ― ECT: more than 70 °C {158 °F} ― Engine speed: 1,000—3,200 rpm ― Absolute load: 20—62.5 % ― Output voltage from the HO2S: less than 0.2 V
P2237:00	A/F sensor positive current control circuit open	• The PCM monitors A/F sensor positive current control circuit voltage. If the voltage out of the specified value while the engine is running, the PCM determines that the A/F sensor positive current control circuit is open.
P2243:00	A/F sensor reference voltage circuit open	• The PCM monitors the A/F sensor signal voltage at the PCM terminal 2Z. If the either of the following condition is met, the PCM determines that the A/F sensor reference voltage circuit is open. ― The PCM terminal 2Z voltage is specified voltage or more for 5 s. ― The PCM detects the DTC P0030:00 or P0134:00 while the pending code P2243:00 is stored. MONITORING CONDITIONS ― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode) ― Following conditions are met: • Engine is running or ignition switch is ON • Battery voltage: 11—18 V • A/F sensor element impedance: below 220 ohm
P2245:00	A/F sensor reference voltage circuit low input	• The PCM monitors the A/F sensor reference voltage circuit voltage. If the voltage below the threshold value while the engine is running, the PCM determines that the A/F sensor reference voltage circuit is low.
P2246:00	A/F sensor reference voltage circuit high input	• The PCM monitors the A/F sensor reference voltage circuit voltage. If the voltage is above the threshold value while the engine is running, the PCM determines that the A/F sensor reference voltage circuit is high.
P2299:00^*6	Accelerator pedal: spring back malfunction	• Brake override system operates.
P2251:00	A/F sensor negative current control circuit open	• The PCM monitors the electronic throttle valve motor current. If the PCM detects that the electronic throttle valve motor current is below the threshold current, the PCM determines that the electronic throttle valve motor circuit has a malfunction.
P2502:00	Charging system voltage problem	• The PCM monitors the A/F sensor negative current control circuit voltage. If the voltage does not change with the PCM control value while the engine is running, the PCM determines that the A/F sensor negative currentcontrol circuit is open.
P2503:00	Charging system voltage low input	• The PCM needs more than 20 A from the generator, and determines that the generator output voltage is below 8.5 V while the engine is running.
P2504:00	Charging system voltage high input	• The PCM determines that the generator output voltage is above 18.5 V or battery voltage is above 16.0 V while the engine is running.
P2507:00	PCM battery voltage low input	• The PCM monitors the voltage of back-up battery positive terminal. If the PCM detects that the battery positive terminal voltage is below 2.5 V for 2 s, the PCM determines that the backup voltage circuit has a malfunction.
P2676:00	VAD solenoid valve circuit low input	• The PCM monitors VAD solenoid valve control signal. If the PCM turns VAD solenoid valve off but voltage still remains low, the PCM determines that VAD solenoid valve circuit has malfunction.
P2677:00	VAD solenoid valve circuit high input	• The PCM monitors VAD solenoid valve control signal. If the PCM turns VAD solenoid valve on but voltage still remains high, the PCM determines that VAD solenoid valve circuit has malfunction.
U3000:41	PCM processor error	• PCM internal EEPROM malfunction.

DTC No.

Condition

Detection condition

P0011:00

CMP timing over-advanced

• The actual valve timing is over-advanced by 15 °from the target valve timing for specified period when the oil control valve (OCV) is controlled in the maximum valve timing retard condition.

MONITORING CONDITIONS

― Engine speed: below 4,000 rpm

― ECT: 70—110 °C {158—230 °F}

P0012:00

CMP timing over-retarded

• The actual valve timing is over-retarded by 10 ° from the target valve timing for specified period when the oil control valve (OCV) system control is within the feedback range.

MONITORING CONDITIONS

― Engine speed: below 4,000 rpm

― ECT: 70—110 °C {158—230 °F}

P0030:00

A/F sensor heater control circuit problem

• OBD system monitor the output signal voltage from oxygen sensor which is proportion to the element impedance of oxygen sensor.

• If the output signal voltage above 1.5 V after specified time from engine start, heater performance considered failed.

MONITORING CONDITIONS

― Battery voltage: 10—18 V

― Time from engine start: 74 s or more

P0031:00

A/F sensor heater control circuit low input

• The PCM monitors the A/F sensor heater output voltage. If the PCM turns the A/F sensor heater off but the A/F sensor heater circuit remains low voltage, the PCM determines that the A/F sensor heater circuit has a malfunction.

P0032:00

A/F sensor heater control circuit high input

• The PCM monitors the A/F sensor heater output voltage. If the PCM turns the A/F sensor heater on but the A/F sensor heater circuit remains high voltage, the PCM determines that the A/F sensor heater circuit has a malfunction.

P0037:00

HO2S heater control circuit low input

• The PCM monitors the HO2S heater output voltage. If the PCM turns the HO2S heater off but the HO2S heater circuit remains low voltage, the PCM determines that the HO2S heater circuit has a malfunction.

P0038:00

HO2S heater control circuit high input

• The PCM monitors the HO2S heater output voltage. If the PCM turns the HO2S heater on but the HO2S heater circuit remains high voltage, the PCM determines that the HO2S heater circuit has a malfunction.

P0101:00

MAF sensor circuit range/performance problem

• PCM monitors mass intake air flow amount when the engine is running.

― If the mass intake air flow amount is above 51 l/s for 5 s and the engine speed is below 2,000 rpm with the engine running, the PCM determines that the detected mass intake air flow amount is too high.

― If the mass intake air flow amount is below 8.5—69.1 l/s (The value depends on engine speed.) for 5 s and the engine speed is above 1,000 rpm with the engine running and the throttle opening angle above 50%, the PCM determines that detected the mass intake air flow amount is too low.

P0102:00

MAF sensor circuit low input

• The PCM monitors input voltage from the MAF sensor when the engine running. If the input voltage is below 0.21 V, the PCM determines that the MAF circuit has a malfunction.

P0103:00

MAF sensor circuit high input

• The PCM monitors the input voltage from the MAF sensor when the engine running. If the input voltage is above 4.9 V, the PCM determines that the MAF circuit has a malfunction.

P0107:00

MAP sensor circuit low input

• The PCM monitors the input voltage from the MAP sensor. If the input voltage is below 0.1 V, the PCM determines that the MAP sensor circuit has a malfunction.

P0108:00

MAP sensor circuit high input

• The PCM monitors the input voltage from the MAP sensor. If the input voltage is above 4.9 V, the PCM determines that the MAP sensor circuit has a malfunction.

P0111:00

IAT sensor circuit range/performance problem

• If the intake air temperature is higher than the engine coolant temperature by 40 °C {72 °F} for 60 s with key on, the PCM determines that there is a IAT sensor performance problem.

P0112:00

IAT sensor circuit low input

• The PCM monitors the IAT sensor signal. If the PCM detects that the IAT sensor voltage is below 0.16 V, the PCM determines that the IAT sensor circuit has a malfunction.

P0113:00

IAT sensor circuit high input

• The PCM monitors the IAT sensor signal. If the PCM detects that the IAT sensor voltage is above 4.8 V, the PCM determines that IAT sensor circuit has a malfunction.

P0117:00

ECT sensor circuit low input

• The PCM monitors the ECT sensor signal. If the PCM detects that the ECT sensor voltage is below 0.2 V, the PCM determines that the ECT sensor circuit has a malfunction.

P0118:00

ECT sensor circuit high input

• The PCM monitors the ECT sensor signal. If the PCM detects that the ECT sensor voltage is above 4.6 V, the PCM determines that the ECT sensor circuit has a malfunction.

P0122:00

TP sensor No.1 circuit low input

• If the PCM detects that the TP sensor No.1 voltage is below 0.2 V while the engine is running, the PCM determines that the TP sensor No.1 circuit has a malfunction.

P0123:00

TP sensor No.1 circuit high input

• If the PCM detects the TP sensor No.1 voltage is to be above 4.85 V after switch the ignition to ON, PCM determines that the TP sensor No.1 circuit has a malfunction.

P0125:00

Insufficient coolant temperature for closed loop fuel control

• The PCM monitors the ECT sensor signal after engine is started while the engine is cold. If the engine coolant temperature does not reach the expected temperature for a specified period, the PCM determines that it has taken an excessive amount of time for the engine coolant temperature to reach the temperature necessary to start closed-loop fuel control.

P0131:00

A/F sensor circuit low input

• The PCM monitors the input voltage from the A/F sensor when the engine is running. If the input voltage is less than 1.0 V for 2 s, the PCM determines that the A/F sensor circuit voltage is low.

P0132:00

A/F sensor circuit high input

• The PCM monitors the input voltage from the A/F sensor when the engine is running. If the input voltage is above 1.0 V for 2 s, the PCM determines that the A/F sensor circuit voltage is high.

P0133:00

A/F sensor circuit slow response

• A/F sensor malfunction is detected by measuring of the average frequency of A/F sensor signal, time required to pass from rich to lean, time required to pass from lean to rich.

• The average frequency of A/F sensor signal is more than the threshold value.

P0134:00

A/F sensor circuit no activity detected

• The PCM monitors the element impedance A/F sensor when the following conditions are met. Under the following monitoring conditions, the element impedance more than specified value, the PCM determines that the A/F sensor is not activated.

P0137:00

HO2S circuit low input

• The PCM monitors the input voltage from the HO2S. If the input voltage from the HO2S is below 0.1 V with the HO2S fuel injection feedback value is 3% or more for 41.6 s, the PCM determines that the HO2S circuit input is low.

• The PCM monitors the input voltage from the HO2S when the following conditions are met. Under the following monitoring conditions, if the input voltage from the HO2S does not even exceed 0.1 V though the short term fuel trim is controlled up to 20.5% for 9.6 s, the PCM determines that the HO2S circuit input is low.

MONITORING CONDITIONS

― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F sensor, HO2S and TWC Repair Verification Drive Mode)

― Following conditions are met for above 20.8 s;

• Engine speed: above 1,500 rpm

• ECT: above 70 °C {158 °F}

• HO2S heater control: ON

P0138:00

HO2S circuit high input

• The PCM monitors input voltage from HO2S. If the input voltage from the HO2S is above 1.2 V for 0.8 s, the PCM determines that circuit input is high.

P0139:00

HO2S circuit slow response

• The PCM monitors the rich (0.55 V) to lean (0.3 V) response time of the HO2S. The PCM measures the response time when the following conditions are met. The PCM determines a HO2S response deterioration malfunction when the measured response time is more than 0.08 s for 2 of 3 times.

MONITORING CONDITIONS

― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)

― Following conditions are met:

• During deceleration fuel cut

• Estimated temperature of the zirconia element inside the HO2S: above 450 °C {842 °F}

• The PCM monitors for a time-out malfunction (when HO2S remains above 0.2 V for longer than a specified period of time during fuel cut control). The PCM measures the amount of time from when the following conditions are met until the HO2S output voltage drops below 0.2 V. The PCM determines a HO2S time-out malfunction when the detected time is more than 4 s for 2 of 3 times.

MONITORING CONDITIONS

― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)

― Following conditions are met:

• During deceleration fuel cut

• Estimated temperature of the zirconia element inside the HO2S: above 450 °C {842 °F}

P0140:00

HO2S circuit no activity detected

• The PCM monitors the input voltage from the HO2S when the following conditions are met. Under the following monitoring conditions, if the input voltage from the HO2S does not even exceed 0.55 V though the short term fuel trim is controlled up to 20.5% for 9.6 s, the PCM determines that sensor circuit is not activated.

MONITORING CONDITIONS

― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F sensor, HO2S and TWC Repair Verification Drive Mode)

― Following conditions are met for above 20.8 s;

• Engine speed: above 1,500 rpm

• ECT: above 70 °C {158 °F}

P0222:00

TP sensor No.2 circuit low input

• If the PCM detects the TP sensor No.2 voltage is to be below 0.2 V after switch the ignition to ON, the PCM determines that TP sensor No.2 circuit has a malfunction.

P0223:00

TP sensor No.2 circuit high input

• If the PCM detects the TP sensor No.2 voltage is to be above 4.85 V after switch the ignition to ON, the PCM determines that the TP sensor No.2 circuit has a malfunction.

P0300:00

Random misfire detected

• The PCM monitors CKP sensor input signal interval time. The PCM calculates the change of interval time for each cylinder. If the change of interval time exceeds the preprogrammed criteria, the PCM detects a misfire in the corresponding cylinder. While the engine is running, the PCM counts the number of misfires that occurred at 200 crankshaft revolutions and 1,000 crankshaft revolutions and calculates the misfire ratio for each crankshaft revolution. If the ratio exceeds the preprogrammed criteria, the PCM determines that a misfire, which can damage the catalytic converter or affect emission performance, has occurred.

P0301:00

Cylinder No.1 misfire detected

• The PCM monitors the CKP sensor input signal interval time. The PCM calculates the change of interval time for each cylinder. If the change of interval time exceeds the preprogrammed criteria, the PCM detects a misfire in the corresponding cylinder. While the engine is running, the PCM counts the number of misfires that occurred at 200 crankshaft revolutions and 1,000 crankshaft revolutions and calculates the misfire ratio for each crankshaft revolution. If the ratio exceeds the preprogrammed criteria, the PCM determines that a misfire, which can damage the catalytic converter or affect emission performance, has occurred.

P0302:00

Cylinder No.2 misfire detected

P0303:00

Cylinder No.3 misfire detected

P0304:00

Cylinder No.4 misfire detected

P0327:00

KS circuit low input

• The PCM monitors input signal from the KS when the engine is running. If the input voltage is below 0.2 V the PCM determines that the KS circuit has a malfunction.

P0328:00

KS circuit high input

• The PCM monitors the input signal from the KS when the engine is running. If the input voltage is above 4.8 V the PCM determines that KS circuit has a malfunction.

P0335:00

CKP sensor circuit problem

• If the PCM does not receive the input voltage from the CKP sensor for 4.2 s while the MAF is 1.95 g/s {0.25 lb/min.} or above, the PCM determines that the CKP sensor circuit has a malfunction.

P0340:00

CMP sensor circuit problem

• The PCM monitors the input voltage from the CMP sensor when the engine is running. If the PCM does not receive the input voltage from the CMP sensor while the PCM receives the input signal from the CKP sensor, the PCM determines that the CMP sensor circuit has a malfunction.

P0403:00

EGR control circuit problem

• The PCM monitors the input voltage from EGR valve. If the voltage remains low or high, the PCM determines that the EGR valve circuit has a malfunction.

P0421:00

Warm up catalyst system efficiency below threshold

• The PCM monitors the input voltage from the middle A/F sensor and the HO2S output current when the following conditions are met. If the input voltage change is extremely large compared to the output current change, the PCM determines that the catalyst system has deteriorated.

MONITORING CONDITIONS

― Calculated TWC temperature: more than 400 °C {752 °F}

― Engine speed: 1,500—3,000 rpm

― LOAD: 17—50% (MTX), 20—50% (ATX) (at engine speed 2,000 rpm)

― Time with purge control system does not operate: more than 3.2 s

P0443:00

Purge solenoid valve circuit problem

• The PCM monitors the purge solenoid valve control signal voltage and current. If the following conditions are met, the PCM determines that there is the purge solenoid valve control circuit problem.

― The PCM turns the purge solenoid valve off, but the voltage of the purge solenoid valve control signal remains low.

― The PCM turns the purge solenoid valve on, but the current of the purge solenoid valve control signal remains high.

P0480:00

Cooling fan relay No.1 control circuit malfunction

• The PCM monitors the cooling fan relay No.1 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No.1 control circuit problem.

― The PCM turns the cooling fan relay No.1 off, but the voltage of the cooling fan relay No.1 control signal remains low.

― The PCM turns the cooling fan relay No.1 on, but the current of the cooling fan relay No.1 control signal remains high.

P0481:00^*1

Cooling fan relay No.2 and No.3 control circuit malfunction

• The PCM monitors the cooling fan relay No.2 and No.3 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No.2 and No.3 control circuit problem.

― The PCM turns the cooling fan relay No.2 and No.3 off, but the voltage of the cooling fan relay No.2 and No.3 control signal remains low.

― The PCM turns the cooling fan relay No.2 and No.3 on, but the current of the cooling fan relay No.2 and No.3 control signal remains high.

P0482:00^*2

• Cooling fan relay No.2 control circuit malfunction (With two cooling fan relays)

• Cooling fan relay No.4 control circuit malfunction (With four cooling fan relays)

With two cooling fan relays

• The PCM monitors the cooling fan relay No.2 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No.2 control circuit problem.

― The PCM turns the cooling fan relay No.2 off, but the voltage of the cooling fan relay No.2 control signal remains low.

― The PCM turns the cooling fan relay No.2 on, but the current of the cooling fan relay No.2 control signal remains high.

With four cooling fan relays

• The PCM monitors the cooling fan relay No.4 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No.4 control circuit problem.

― The PCM turns the cooling fan relay No.4 off, but the voltage of the cooling fan relay No.4 control signal remains low.

― The PCM turns the cooling fan relay No.4 on, but the current of the cooling fan relay No.4 control signal remains high.

P0500:00

VSS circuit problem

• If an error in the wheel speed signal from the ABS HU/CM or DSC HU/CM is detected by CAN when the following conditions are met:

― Neutral switch and CPP switch: OFF (MTX)

― Shift range: except P, N or R position (ATX)

― Absolute load: above 40%

― Engine speed: 2,000 rpm or above

― Brake switch: OFF

P0505:00^*5

IAC system problem

• The PCM cannot control idle speed toward target idle speed while KOER self test.

P0506:00

IAC system RPM lower than expected

• The actual idle speed is lower than expected by 100 rpm for 14 s, when the brake pedal is depressed (brake switch is on).

Note

• If the atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or the intake air temperature is below −10 °C {14 °F}, the PCM cancels the diagnosis of DTC P0506:00.

P0507:00

IAC system RPM higher than expected

• The actual idle speed is higher than expected by 200 rpm for 14 s, when the brake pedal is depressed (brake switch is on).

Note

• If the atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or the intake air temperature is below −10 °C {14 °F}, the PCM cancels the diagnosis of DTC P0507:00.

P0571:00^*7

Brake switch circuit problem

• The PCM monitors switching in conjunction with brake switches No.1 and No.2. If either No.1 or No.2 do not switch for a continuous five times even though either No.1 or No.2 is switched from off to on or from on to off, P0571:00 is detected.

P0579:00^*3

Cruise control multi-function input circuit range/performance problem

• The PCM monitors the input signal from the cruise control switch. If the input signal does not change for 120 s, the PCM determines that the cruise control switch circuit has a malfunction.

P0581:00^*3

Cruise control multi-function input circuit high input

• The PCM monitors the input signal from the cruise control switch. If the PCM detects that the cruise control switch voltage is above 4.84 V, the PCM determines that the cruise control switch circuit has a malfunction.

P0600:00

Serial communication link

• The PCM internal malfunction.

P0601:00

PCM memory check sum error

• PCM internal memory check sum error.

P0602:00

PCM programming error

• No configuration data in the PCM.

Note

• If the “PCM CONFIGURATION” is successful, the PCM stores DTC P0602:00 and illuminates the MIL (system is normal). Clear DTC P0602:00 using the M-MDS after the “PCM CONFIGURATION”.

• The MIL goes out after three drive cycles with no failure (DTCs remain in PCM).

P0604:00

PCM RAM error

• PCM internal RAM malfunction.

P0606:00

PCM processor error

• The PCM internal CPU malfunction.

• Abnormal voltage applied to the PCM ignition switch terminal.

P0607:00

PCM performance problem

• The PCM internal malfunction.

P0610:00

PCM vehicle configuration error

• The PCM data configuration error.

P0638:00

Throttle valve actuator control circuit range/performance problem

• The PCM compares the actual TP with the target TP when the engine is running. If the difference is more than the specification, the PCM determines that there is a throttle valve actuator control circuit range/performance problem.

P064D:00

Internal control module A/F sensor processor performance problem

• The A/F sensor IC integrated in the PCM converts to the voltage value for the fuel control and for the diagnosis based on the A/F sensor signal current and sends to the CPU (integrated in the PCM). The CPU switches the voltage value for the fuel control and for the diagnosis in the fuel control once during one drive cycle, and compares the voltage values. If the difference of compared value is below threshold, the PCM determines that the signal circuit between CPU and A/F sensor control IC has malfunction.

MONITORING CONDITIONS

― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)

― Following conditions are met:

• Engine is running or ignition switch is ON

• A/F sensor signal voltage is 1.2 V—battery voltage-1.2 V (PCM terminals 2Z, 2AC, 2AD)

P0661:00

Variable intake air solenoid valve circuit low input

• The PCM monitors the variable intake air solenoid valve control signal. If the PCM turns variable intake air solenoid valve off but voltage still remains low, the PCM determines that variable intake air solenoid valve circuit has malfunction.

P0662:00

Variable intake air solenoid valve circuit high input

• The PCM monitors the variable intake air solenoid valve control signal. If the PCM turns variable intake air solenoid valve on but current at PCM terminal still remains high, the PCM determines that the variable intake air solenoid valve circuit has malfunction.

P0685:00

Main relay control circuit open

• This DTC sets when the ignition switch position run circuit indicates the key is in the off, ACC, or LOCK position, and the amount of time the PCM remains powered through the PCM power relay exceeds a predetermined amount of time.

P0703:00

Brake switch input circuit problem

• The PCM monitors the input signal from the brake switch No.1. If the input signal does not change while following decelerating 8 times, the PCM determines that there is a brake switch No.1 input circuit problem.

MONITORING CONDITIONS

― Vehicle speed: become from above 30 km/h {19 mph}to 30 km/h {19 mph} or less

― Deceleration rate: exceeds 3.8 km/h {2.4 mph} per 0.1 s

P0704:00^*4

CPP switch input circuit problem

• The PCM monitors changes in input voltage from the CPP switch. If the PCM does not detect the voltage changes while the vehicle runs with vehicle speed above 30 km/h {19 mph} and stops 8 times alternately, the PCM determines that the CPP switch circuit has a malfunction.

P0850:00^*4

Neutral switch input circuit problem

• The PCM monitors changes in input voltage from the neutral switch. If the PCM does not detect the voltage changes while driving the vehicle at a vehicle speed above 30 km/h {19 mph}and clutch pedal turns press and depress 10 times repeatedly, the PCM determines that the neutral switch circuit has a malfunction.

P1260:00

Immobilizer system problem

• The instrument cluster detects an immobilizer system malfunction. (Vehicles without advanced keyless entry and push button start system)

• The keyless control module detects an immobilizer system malfunction. (Vehicles with advanced keyless entry and push button start system)

P2009:00

Variable tumble solenoid valve circuit low input

• The PCM monitors variable tumble solenoid valve control signal. If the PCM turns variable tumble solenoid valve off but voltage still remains low, the PCM determines that variable tumble solenoid valve control circuit has malfunction.

P2010:00

Variable tumble solenoid valve circuit high input

• The PCM monitors the variable tumble solenoid valve control signal. If the PCM turns variable tumble solenoid valve on but the current still remains high, the PCM determines that the variable tumble solenoid valve control circuit has malfunction.

P2088:00

OCV circuit low input

• The PCM monitors the OCV voltage. If the PCM detects the OCV control voltage (calculated from the OCV) is below the specification voltage (calculated from the battery positive voltage), the PCM determines that the OCV circuit has a malfunction.

P2089:00

OCV circuit high input

• The PCM monitors the OCV current. If the PCM detects that the OCV control current (calculated from the OCV) is above the specification current, the PCM determines that the OCV circuit has a malfunction.

P2096:00

Target A/F feedback system too lean

• The PCM monitors the target A/F fuel trim when under the target A/F feedback control. If the fuel trim is more than the specification, the PCM determines that the target A/F feedback system is too lean.

P2097:00

Target A/F feedback system too rich

• The PCM monitors the target A/F fuel trim when under the target A/F feedback control. If the fuel trim is less than specification, the PCM determines that the target A/F feedback system is too rich.

P2100:00

Throttle valve actuator circuit open

• The PCM monitors the electronic throttle valve actuator current. If the PCM detects the electronic throttle valve actuator current is below the threshold current, the PCM determines that the electronic throttle valve actuator circuit has a malfunction.

P2101:00

Throttle valve actuator circuit range/performance problem

• The PCM turns the main relay on but the input voltage is 5.0 V or less, the PCM determines that the main relay control circuit voltage is low.

• The PCM monitors the input voltage from the main relay. The PCM turns the main relay off but the input voltage is 5.0 V or more, the PCM determines that the main relay control circuit voltage is high.

P2105:00

Throttle valve actuator control system-forced engine shutdown

• The throttle valve actuator control system is in the failure mode effects management mode.

P2107:00

Throttle valve actuator control module processor error

• Throttle valve actuator control module internal processor error

P2108:00

Throttle valve actuator control module performance error

• If the PCM detects either of the following conditions, the PCM determines that throttle valve actuator control system has a malfunction.

― TP sensor power supply voltage below 4.4 V

― TP sensor No.1 output voltage below 0.20 V or above 4.85 V (DTC P0122:00 or P0123:00)

― PCM internal circuit for TP sensor No.1 input circuit malfunction.

P2119:00

Throttle valve actuator control throttle body range/performance problem

• The PCM compares the TP with the default TP when switch the ignition to off. If the TP is higher than the default TP, the PCM determines that there is a throttle valve actuator control throttle body range/performance problem.

P2122:00

APP sensor No.1 circuit low input

• The PCM monitors the input voltage from APP sensor No.1 when the engine is running. If the input voltage is less than 0.2 V, the PCM determines that the APP sensor No.1 circuit input voltage is low.

P2123:00

APP sensor No.1 circuit high input

• The PCM monitors the input voltage from APP sensor No.1 when the engine is running. If the input voltage is above 4.8 V, the PCM determines that the APP sensor No.1 circuit input voltage is high.

P2127:00

APP sensor No.2 circuit low input

• The PCM monitors the input voltage from APP sensor No.2 when the engine is running. If the input voltage is less than 0.2 V , the PCM determines that the APP sensor No.2 circuit has a malfunction.

P2128:00

APP sensor No.2 circuit high input

• The PCM monitors the input voltage from APP sensor No.2 when the engine is running. If the input voltage is more than 4.8 V , the PCM determines that the APP sensor No.2 circuit has a malfunction.

P2135:00

TP sensor No.1/No.2 voltage correlation problem

• The PCM compares the input voltage from TP sensor No.1 with the input voltage from TP sensor No.2 when the engine is running. If the difference is more than the specification, the PCM determines that there is a TP sensor No.1/No.2 voltage correlation problem.

P2138:00

APP sensor No.1/No.2 voltage correlation problem

• The PCM compares the input voltage from APP sensor No.1 with the input voltage from APP sensor No.2 when the engine is running. If the difference is more than the specification, the PCM determines that there is an APP sensor No.1/No.2 angle correlation problem.

P2177:00

Fuel system too lean at off idle

• PCM monitors short term fuel trim (SHRTFT), long term fuel trim (LONGFT) during closed loop fuel control at off-idle. If the LONGFT and the sum total of these fuel trims exceed preprogrammed criteria, the PCM determines that fuel system is too lean at off-idle.

P2178:00

Fuel system too rich at off idle

• PCM monitors short term fuel trim (SHRTFT), long term fuel trim (LONGFT) during closed loop fuel control at off-idle. If the LONGFT and the sum total of these fuel trims exceed the preprogrammed criteria, the PCM determines that fuel system is too rich at off-idle.

P2187:00

Fuel system too lean at idle

• The PCM monitors short term fuel trim (SHRTFT) and long term fuel trim (LONGFT) during closed loop fuel control at idle. If the LONGFT and the sum total of these fuel trims or SHRTFT exceed the preprogrammed criteria, the PCM determines that fuel system is too lean at idle.

P2188:00

Fuel system too rich at idle

• PCM monitors short term fuel trim (SHRTFT), long term fuel trim (LONGFT) during closed loop fuel control at idle. If the LONGFT and the sum total of these fuel trims or SHRTFT exceed preprogrammed criteria, the PCM determines that fuel system is too rich at idle.

P2195:00

A/F sensor signal stuck lean

• The PCM monitors the equivalence ratio output when the following conditions are met. If the equivalence ratio is more than 1.15 for 25 s, the PCM determines that the A/F sensor signal remains lean.

― ECT: more than 70 °C {158 °F}

― Engine speed: 1,000—3,200 rpm

― Absolute load: 20—62.5 %

― Output voltage from the HO2S: more than 0.7 V

P2196:00

A/F sensor signal stuck rich

• The PCM monitors the equivalence ratio output when the following conditions are met. If the equivalence ratio is less than 0.85 for 25 s, the PCM determines that the A/F sensor signal remains rich.

MONITORING CONDITIONS

― ECT: more than 70 °C {158 °F}

― Engine speed: 1,000—3,200 rpm

― Absolute load: 20—62.5 %

― Output voltage from the HO2S: less than 0.2 V

P2237:00

A/F sensor positive current control circuit open

• The PCM monitors A/F sensor positive current control circuit voltage. If the voltage out of the specified value while the engine is running, the PCM determines that the A/F sensor positive current control circuit is open.

P2243:00

A/F sensor reference voltage circuit open

• The PCM monitors the A/F sensor signal voltage at the PCM terminal 2Z. If the either of the following condition is met, the PCM determines that the A/F sensor reference voltage circuit is open.

― The PCM terminal 2Z voltage is specified voltage or more for 5 s.

― The PCM detects the DTC P0030:00 or P0134:00 while the pending code P2243:00 is stored.

MONITORING CONDITIONS

― Drive Mode 03 (A/F Sensor Heater, HO2S Heater, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)

― Following conditions are met:

• Engine is running or ignition switch is ON

• Battery voltage: 11—18 V

• A/F sensor element impedance: below 220 ohm

P2245:00

A/F sensor reference voltage circuit low input

• The PCM monitors the A/F sensor reference voltage circuit voltage. If the voltage below the threshold value while the engine is running, the PCM determines that the A/F sensor reference voltage circuit is low.

P2246:00

A/F sensor reference voltage circuit high input

• The PCM monitors the A/F sensor reference voltage circuit voltage. If the voltage is above the threshold value while the engine is running, the PCM determines that the A/F sensor reference voltage circuit is high.

P2299:00^*6

Accelerator pedal: spring back malfunction

• Brake override system operates.

P2251:00

A/F sensor negative current control circuit open

• The PCM monitors the electronic throttle valve motor current. If the PCM detects that the electronic throttle valve motor current is below the threshold current, the PCM determines that the electronic throttle valve motor circuit has a malfunction.

P2502:00

Charging system voltage problem

• The PCM monitors the A/F sensor negative current control circuit voltage. If the voltage does not change with the PCM control value while the engine is running, the PCM determines that the A/F sensor negative currentcontrol circuit is open.

P2503:00

Charging system voltage low input

• The PCM needs more than 20 A from the generator, and determines that the generator output voltage is below 8.5 V while the engine is running.

P2504:00

Charging system voltage high input

• The PCM determines that the generator output voltage is above 18.5 V or battery voltage is above 16.0 V while the engine is running.

P2507:00

PCM battery voltage low input

• The PCM monitors the voltage of back-up battery positive terminal. If the PCM detects that the battery positive terminal voltage is below 2.5 V for 2 s, the PCM determines that the backup voltage circuit has a malfunction.

P2676:00

VAD solenoid valve circuit low input

• The PCM monitors VAD solenoid valve control signal. If the PCM turns VAD solenoid valve off but voltage still remains low, the PCM determines that VAD solenoid valve circuit has malfunction.

P2677:00

VAD solenoid valve circuit high input

• The PCM monitors VAD solenoid valve control signal. If the PCM turns VAD solenoid valve on but voltage still remains high, the PCM determines that VAD solenoid valve circuit has malfunction.

U3000:41

PCM processor error

• PCM internal EEPROM malfunction.