DTC DETECTION LOGIC AND CONDITIONS [L8, LF, L5]

id010242100300

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 condition

― Engine speed is below 4,000 rpm

― Engine coolant temperature is 70—110 °C {158—230 °F}

P0012:00 CMP timing over-retarded

• 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 condition

― Engine speed is below 4,000 rpm

― Engine coolant temperature is 70—110 °C {158—230 °F}

P0030:00 A/F sensor heater control circuit problem

• OBD system monitors the output signal voltage from A/F sensor which is proportion to the element impedance of A/F sensor.

• If the output signal voltage isn’t between 0.75 V and 1.5 V after specified time from engine start, heater performance considered failed.

MONITORING CONDITIONS

― Battery voltage: 10—18 V

― Time from engine start is 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 44 l/s (L8, LF), 51 l/s (L5) 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 6—43 l/s (L8, LF), 8.5—69.1 l/s (L5) (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 when intake air temperature is above –10 °C {14 °F}. If the input voltage is below 0.1 V, the PCM determines that the MAP sensor circuit has a malfunction.

MONITORING CONDITIONS

― Absolute load:13—32%

P0108:00 MAP sensor circuit high input

• The PCM monitors the input voltage from the MAP sensor when intake air temperature is above –10 °C {14 °F}. If input the voltage is above 4.9 V, the PCM determines that the MAP sensor circuit has a malfunction.

MONITORING CONDITIONS

― Absolute load: 13—32 %

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 voltage is below 0.2 V while the engine is running, the PCM determines that the TP 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 position, PCM determines that TP 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 while 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 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 less than 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.

MONITORING CONDITIONS

― A/F sensor heater, HO2S heater, A/F sensor, HO2S, and TWC Repair Verification Drive Mode

― Following conditions are met:

• A/F sensor heater monitor is completed.

• Fuel system loop status is closed loop fuel control.

― ECT sensor and A/F sensor heater and normal.

― Engine speed: 1410—3500 rpm

― Charging efficiency: 15—59 % (MTX), 20—59 % (ATX)

― Engine coolant temperature above 70 °C {158 °F}

P0134:00 A/F sensor circuit no activity detected

• The PCM monitors the input voltage from A/F sensor when the following conditions are met. Under the following monitoring conditions, the input voltage more than 3.22 V, the PCM determines that the A/F sensor is not activated.

MONITORING CONDITIONS

― A/F sensor, HO2S, A/F sensor heater, HO2S heater and TWC Repair Verification Drive Mode

― Following conditions are met

• A/F sensor heater is turned on for more than 30 s.

• Battery voltage: 10—18 V

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.

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

― A/F sensor, HO2S, A/F sensor heater, HO2S heater and TWC repair verification drive mode

― Following conditions are met for above 20.8 s

• Engine speed is above 1,500 rpm.

• Engine coolant temperature is above 70 °C {158 °F}.

P0222:00 TP sensor No.2 circuit low input

• If PCM detects TP sensor No.2 voltage is to be below 0.2 V after switch the ignition to ON position, the PCM determines that TP 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 position, the PCM determines that the TP 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, P0302, P0303, P0304 Cylinder No.1—4 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.

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 circuit has a malfunction.

P0403:00 EGR control circuit problem

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

P0420:00 Catalyst system efficiency below threshold

• PCM compares number of A/F sensor and HO2S inversions for a predetermined time. PCM monitors number of inversions rear sides performs while front side inverts for specified number of times when the following monitoring conditions are met. detects inversion ratio is below threshold, PCM determines that catalyst system has deteriorated.

MONITORING CONDITION

― 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)

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

― ECT: more than 70 °C {158 °F}

― Catalyst converter temperature: more than 350 °C {662 °F}

― Engine speed: 1,000—4,000 rpm

― LOAD: 19—56% (at engine speed 2,000 rpm)

― Time with purge control system does not operate: more than 5 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

• PCM monitors cooling fan relay No.1 control signal. If voltage remains low or high, PCM determines that fan relay No.1 circuit has a malfunction.

P0481:00 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 Cooling fan relay No.2^*1, No.4^*2 control circuit malfunction

• The PCM monitors the cooling fan relay No.2^*1, No.4^*2 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No.2^*1, No.4^*2 control circuit problem.

― The PCM turns the cooling fan relay No.2^*1, No.4^*2 off, but the voltage of the cooling fan relay No.2^*1, No.4^*2 control signal remains low.

― The PCM turns the cooling fan relay No.2^*1, No.4^*2 on, but the current of the cooling fan relay No.2^*1, No.4^*2 control signal remains high.

*1 :Vehicles equipped with two cooling fan relay

*2 :Vehicles equipped with four cooling fan relay

P0500:00 VSS circuit problem

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

― Neutral switch and clutch switch are OFF (MTX)

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

― Absolute load is above 40%

― Engine speed is 2,000 rpm or above

― Brake switch is OFF

P0505:00 IAC system problem

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

P0506:00 Idle air control system RPM lower than expected

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

P0507:00 Idle air control system RPM higher than expected

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

P0571:00 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 Cruise control multi-function input circuit range/performance

• 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 Cruise control multi-function input circuit high

• 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.

P0604:00 PCM random access memory error

• PCM internal RAM malfunction.

P0606:00 PCM processor

• The PCM internal CPU malfunction.

• Abnormal voltage applied to PCM ignition switch terminal.

P0607:00 PCM performance problem

• PCM internal malfunction.

P0610:00 PCM vehicle configuration error

• PCM data configuration error.

P0638:00 Throttle 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 actuator control circuit range/performance problem.

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.

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 CONDITION

― Vehicle speed is 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 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 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.

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 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 circuit has malfunction.

P2088:00 Oil control valve (OCV) circuit low

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

P2089:00 Oil control valve (OCV) circuit high

• The PCM monitors the OCV voltage. If the PCM detects that the OCV control voltage (calculated from the OCV) is above the threshold voltage (calculated from battery positive voltage), 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 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

• 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 actuator control system - forced engine shutdown

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

P2107:00 Throttle actuator control module processor error

• Throttle actuator control module internal processor error.

P2108:00 Throttle 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 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 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 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 A/F sensor output when the following conditions are met. If the output is more than 1.15 for 25 s, the PCM determines that the A/F sensor signal remains lean.

MONITORING CONDITION

― 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 0.2 V

P2196:00 A/F sensor signal stuck rich

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

MONITORING CONDITION

― 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 is not changed against the PCM control value while the engine running, the PCM determines that the A/F sensor positive current control circuit is open.

P2251:00 A/F sensor negative current control circuit open

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

P2502:00 Charging system voltage problem

• The PCM determines that the generator output voltage is above 17 V or battery voltage is below 11 V while the engine is running.

P2503:00 Charging system voltage low

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

P2504:00 Charging system voltage high

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

P2507:00 PCM B+ voltage low

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

P2676:00 Variable air duct (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 Variable air duct (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

• PCM internal EEPROM malfunction.