DTC DETECTION LOGIC AND CONDITIONS[ZJ, ZY, Z6]

id0102c1100300

Without Throttle Valve Actuator

P0011 CMP-timing over-advanced

• The actual valve timing is over-advanced from the target valve timing when the OCV is controlled within the maximum valve timing retard condition.

P0012 CMP-timing over-retarded

• The actual valve timing is over-retarded from the target valve timing when the OCV system control is within feed-back range.

P0031 Front HO2S heater control circuit low

• The PCM monitors front HO2S heater control voltage. If PCM turns front HO2S heater off but front HO2S heater circuit has low voltage, PCM determines that front HO2S heater circuit has malfunction.

P0032 Front HO2S heater control circuit high

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

P0037 Rear HO2S heater control circuit low

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

P0038 Rear HO2S heater control circuit high

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

P0101 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 more than 66.38 g/s for 5 s and the engine speed is less than 2,000 rpm with the engine running and engine coolant temperature is more than 70 °C {158 °F}, the PCM determines that the detected mass intake air flow amount is too high.

― If the mass intake air flow amount is less than 3.29 g/s for 5 s and the throttle opening angle more than 50 % with the engine running, the PCM determines that detected the mass intake air flow amount is too low.

P0102 MAF sensor circuit low input

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

P0103 MAF sensor circuit high input

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

P0111 IAT sensor circuit range/performance problem

• The PCM compares the IAT with the ECT when the engine is running. If the IAT is higher than the ECT by 40 °C {104 °F}, the PCM determines that there is an IAT sensor circuit range/performance problem.

P0112 IAT sensor circuit low input

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

P0113 IAT sensor circuit high input

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

P0117 ECT sensor circuit low input

• The PCM monitors the ECT sensor signal. If the PCM detects that the ECT sensor voltage is less than 0.20 V, the PCM determines that the ECT sensor circuit has a malfunction.

P0118 ECT sensor circuit high input

• The PCM monitors the ECT sensor signal. If the PCM detects that the ECT sensor voltage is more than 4.9 V, the PCM determines that the ECT sensor circuit has a malfunction.

P0121 TP sensor circuit range/performance problem

• If the PCM detects that the throttle valve opening angle is less than 12.5 %for 5 s after the following conditions are met, the PCM determines that there is a TP sensor circuit range/performance problem:

MONITORING CONDITION

― Engine coolant temperature is more than 70 °C {158 °F}.

― MAF sensor signal is more than 59.5 g/s {7.9 lb/min}.

• If the PCM detects that the throttle valve opening angle is more than 50% for 5 s after the following conditions are met, the PCM determines that there is a TP sensor circuit range/performance problem.

MONITORING CONDITION

― MAF sensor signal is less than 3.3 g/s {0.4 lb/min}.

P0122 TP sensor circuit low input

• If the PCM detects that the TP sensor voltage is less than 0.10 V while the engine is running, the PCM determines that the TP sensor circuit has a malfunction.

P0123 TP sensor circuit high input

• If the PCM detects that the TP sensor voltage is more than 4.9 V after the ignition switch is turned to the ON position, the PCM determines that the TP sensor circuit has a malfunction.

P0125 Insufficient coolant temperature for closed loop fuel control

• The PCM monitors the ECT after cold engine start. If the ECT does not reach the specification in a certain period, the PCM determines that the engine coolant temperature for closed loop fuel control is insufficient.

P0132 Front HO2S circuit high voltage

• The PCM monitors the input voltage from the front HO2S when the engine is running. If the input voltage is more than 1.2 V, the PCM determines that the front HO2S circuit voltage is high.

P0133 Front HO2S circuit slow response

• The PCM monitors the inversion cycle period, lean-to-rich response time and rich-to-lean response time of the sensor. The PCM calculates the average of the inversion cycle period-specified inversion cycles, average response time from lean-to-rich, and from rich-to-lean when the following conditions are met. If any exceeds the threshold, the PCM determines that circuit has a malfunction.

MONITORING CONDITION

― HO2S heater, HO2S, and TWC repair verification drive mode

― Following conditions are met:

• Calculation load is 18.0—59.4 % (at 2,000 rpm).

• Engine speed is 1,410— 4,000 rpm.

• Vehicle speed is more than 3.76 km/h {2.33 mph}.

• Engine coolant temperature is more than –10 °C {14 °F}.

• Front HO2S signal inversion cycle is more than 10 cycles.

P0134 Front HO2S circuit no activity detected

• The PCM monitors the input voltage from the front HO2S when the following conditions are met. If the input voltage from sensor never exceeds 0.55 V for 120 s or more, the PCM determines that sensor circuit is not activated.

MONITORING CONDITION

― Front HO2S, front HO2S heater and TWC repair verification drive mode

― Following conditions are met:

• Engine speed is 1,500 rpm or more.

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

• Within feed-back range

P0138 Rear HO2S circuit high voltage

• The PCM monitors the input voltage from the rear HO2S when the engine is running. If the input voltage is more than 1.2 V, the PCM determines that the rear HO2S circuit voltage is high.

P0140 Rear HO2S circuit no activity detected

• The PCM monitors the input voltage from the rear HO2S when the following conditions are met. If the input voltage from the sensor never exceeds 0.55 V for 30.4 s, the PCM determines that the sensor circuit is not activated.

MONITORING CONDITION

― HO2S, HO2S heater and TWC repair verification drive mode

― Following conditions are met:

• Engine speed is 1,500 rpm or more.

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

• Within feed-back range

P0300 Random misfire detected

• The PCM monitors the CKP sensor input signal interval time. the PCM calculates the change of interval time for each cylinder. If change of interval time exceeds the preprogrammed criteria, the PCM detects 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 Each cylinder 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 KS circuit low input

• The PCM monitors the input signal from the KS when the engine is running. If the input voltage is less than 1.25 V, the PCM determines that the KS circuit has a malfunction.

P0328 KS circuit high input

• The PCM monitors the input signal from the KS when the engine is running. If the input voltage is more than 3.75 V, the PCM determines that the KS circuit has a malfunction.

P0335 CKP sensor circuit problem

• If the PCM does not receive the input voltage from the CKP sensor for 4.2 s or more while the MAF is 1.43 g/s {0.189 lb/min} or more, the PCM determines that there is a CKP sensor circuit problem.

P0340 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 for 12 consecutive engine rotations, the PCM determines that there is a CKP sensor circuit problem.

P0420 Catalyst system efficiency below threshold

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

MONITORING CONDITION

― HO2S, HO2S heater and TWC repair verification drive mode

― Engine speed is 1,500—3,000 rpm.

― Calculated TWC temperature in PCM is more than 600 °C {1,112 °F} (MTX), more than 620 °C {1,148 °F} (ATX).

― Calculated load is 17—48 %.*¹

*¹: Maximum calculated load value varies depending on engine speed.

P0443 Purge solenoid valve circuit problem

• The PCM monitors the purge solenoid valve control signal. If the voltage remains low or high, the PCM determines that there is a purge solenoid valve circuit problem.

P0480 Cooling fan control circuit problem

• The PCM monitors input voltage from the fan control module. If the voltage remains low or high, the PCM determines that there is a cooling fan control circuit problem.

P0500 VSS circuit problem

• The PCM monitors the vehicle speed signal. If the PCM does not receive the input vehicle speed signal, the PCM determines that there is a VSS circuit problem.

P0505 IAC system problem

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

P0506 IAC system RPM lower than expected

• The PCM compares the actual idle speed with the target idle speed when the engine is running. If the actual idle speed is lower than the targeted by 100 rpm for 14 s, the PCM determines that the IAC system RPM is lower than expected.

P0507 IAC system RPM higher than expected

• The PCM compares the actual idle speed with the target idle speed when the engine is running. If the actual idle speed is higher than the targeted by 200 rpm for 14 s, the PCM determines that the IAC system RPM is higher than expected.

P0511 IAC circuit problem

• If the PCM detects that the IAC signal voltage is above or below the threshold^* when the IAC control duty target is within 19—50%, the PCM determines that the IAC circuit problem.

*: Detected threshold value depends on the battery voltage and the IAC control signal duty value.

P0550 PSP switch circuit problem

• The PCM monitors the input signal from the PSP switch. If the input signal does not change for 1 min, the PCM determines that the PSP switch circuit problem.

• The PCM monitors the input voltage from the PSP switch when the following conditions are met. If the input voltage is low for 1 min, the PCM determines that the PSP switch circuit problem.

MONITORING CONDITION

― Vehicle speed is more than 60 km/h {37.3 mph}.

― ECT is more than 60 °C {140 °F}.

P0602 PCM programming error

• No configuration data in the PCM.

P0610 PCM vehicle options error

• PCM data configuration error.

P0660 Variable intake air control circuit/open

• The PCM monitors the variable intake air control signal. If the PCM turns the variable intake air shutter valve actuator to open or close but the voltages do not coincide with the PCM signal voltages, the PCM determines that the variable intake air control circuit has a malfunction.

• The PCM could not perform the self-test for the variable intake air control circuit.

P0668 PCM temperature sensor circuit low input

• The PCM monitors the PCM temperature sensor (integrated in the PCM) signal. If the PCM detects that the PCM temperature sensor voltage is 0.10 V or less, the PCM determines that the PCM temperature sensor has a malfunction.

P0669 PCM temperature sensor circuit high input

• The PCM monitors the PCM temperature sensor (integrated the PCM) signal. If the PCM detects that the PCM temperature sensor voltage is 4.98 V or more, the PCM determines that the PCM temperature sensor has a malfunction.

P0703 Brake switch input circuit problem

• The PCM monitors the input signal from the brake switch. If the input signal does not change while following decelerating 8 times, the PCM determines that there is a brake switch 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 CPP switch input circuit problem

• The PCM monitors the input signal from the CPP switch. If the input signal does not change while following decelerating 8 times, the PCM determines that there is a CPP switch input circuit problem.

MONITORING CONDITION

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

P0850 Neutral switch input circuit problem

• The PCM monitors changes in input voltage from neutral switch. If the PCM does not detect voltage changes while running vehicle with vehicle speed 30 km/h {19 mph} or more and clutch pedal turns press and depress 10 times repeatedly, the PCM determines that there is a neutral switch circuit problem.

P1260 Immobilizer system problem

• The instrument cluster detects an immobilizer system problem.

P1384 Variable valve timing control system operation error

• The PCM monitors the actual valve timing and desired valve timing. If the difference between actual valve timing and desired valve timing is bigger than the preprogrammed criteria at the KOER, the PCM determines the variable valve timing control system operation error.

P2006 Variable tumble control stuck close

• The PCM monitors the mass air amount. If the actual air flow amount is below the estimated air flow amount when the following monitoring conditions are met. The PCM determines that the variable tumble control is stuck closed.

MONITORING CONDITION

― Engine coolant temperature is 70 °C {158 °F} or more.

― Throttle valve opening angle is more than 75 %.

― Engine speed is 4,500 rpm or more. (ZJ)

― Engine speed is 3,500 rpm or more. (Z6)

P2008 Variable tumble control circuit/open

• The PCM monitors the variable tumble control signal. If the PCM turns the variable tumble shutter valve actuator to open or close but voltages do not coincide with the PCM signal voltages the PCM determines that the variable tumble control circuit has a malfunction.

• Variable tumble control IC error.

P2088 Variable valve timing control circuit low

• If the PCM detects that the OCV drive current is less than the specification^* when the OCV control duty target is approx. 100 %, the PCM determines that the variable valve timing control circuit low.

*: Detected specification value depends on the battery voltage.

P2089 Variable valve timing control circuit high

• If the PCM detects that the OCV drive current is as specified or more when the OCV control duty target is 3 % or less, the PCM determines that the variable valve timing control circuit high.

P2096 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 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 the specification, the PCM determines that the target A/F feedback system is too rich.

P2177 System too lean off idle

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

P2178 System too rich off idle

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

P2187 System too lean at idle

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

P2188 System too rich at idle

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

P2195 Front HO2S signal stuck lean

• The PCM monitors the front HO2S output voltage when the following conditions are met. If the output voltage is less than 0.45 V for 46 s, the PCM determines that the front HO2S signal remains lean.

MONITORING CONDITION

― Fuel injection control system status: feedback zone

― ECT is more than 70 °C {158 °F}.

― Engine speed is more than 1,500 rpm.

P2196 Front HO2S signal stuck rich

• The PCM monitors the front HO2S output voltage when the following conditions are met. If output voltage is more than 0.45 V for 46 s, the PCM determines that the front HO2S signal remains rich.

MONITORING CONDITION

― Fuel injection control system status: feedback zone

― ECT: more than 70 °C {158 °F}

― Engine speed: more than 1,500 rpm

P2228 BARO sensor circuit low input

• The PCM monitors input voltage from the BARO sensor. If the input voltage at PCM terminal 2S is less than 1.7 V, the PCM determines that the BARO sensor circuit has a malfunction.

P2229 BARO sensor circuit high input

• The PCM monitors input voltage from the BARO sensor. If the input voltage at PCM terminal 2S is 2.9 V or more, PCM determines that the BARO sensor circuit has a malfunction.

P2502 Charging system voltage problem

• The PCM determines that the generator output voltage is more than 17 V or the battery voltage is less than 11 V while the engine running.

P2503 Charging system voltage low

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

P2504 Charging system voltage high

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

P2507 PCM power input signal low

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

With Throttle Valve Actuator

P0011 CMP-timing over-advanced

• The actual valve timing is over-advanced from the target valve timing when the OCV is controlled within the maximum valve timing retard condition.

P0012 CMP-timing over-retarded

• The actual valve timing is over-retarded from the target valve timing when the OCV system control is within feed-back range.

P0030 Front HO2S heater control circuit problem

• The PCM monitors the front HO2S impedance when under the front HO2S heater control for 200 s. If the impedance is more than 44 ohms while PCM turns front HO2S heater on, the PCM determines that there is a front HO2S heater control circuit problem.

P0031 Front HO2S heater control circuit low

P0032 Front HO2S heater control circuit high

P0037 Rear HO2S heater control circuit low

P0038 Rear HO2S heater control circuit high

P0102 MAF sensor circuit low input

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

P0103 MAF sensor circuit high input

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

P0107 MAP sensor circuit low input

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

P0108 MAP sensor circuit high input

• The PCM monitors the input voltage from the MAP sensor. If the input voltage is more than 4.8 V, the PCM determines that the MAP sensor circuit has a malfunction.

P0112 IAT sensor circuit low input

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

P0113 IAT sensor circuit high input

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

P0117 ECT sensor circuit low input

• The PCM monitors the ECT sensor signal. If the PCM detects that the ECT sensor voltage is less than 0.20 V, the PCM determines that the ECT sensor circuit has a malfunction.

P0118 ECT sensor circuit high input

• The PCM monitors the ECT sensor signal. If the PCM detects that the ECT sensor voltage is more than 4.9 V, the PCM determines that the ECT sensor circuit has a malfunction.

P0122 TP sensor circuit low input

• If the PCM detects that the TP sensor voltage is less than 0.10 V while the engine is running, the PCM determines that the TP sensor circuit has a malfunction.

P0123 TP sensor circuit high input

• If the PCM detects that the TP sensor voltage is more than 4.9 V after the ignition switch is turned to the ON position, the PCM determines that the TP sensor circuit has a malfunction.

P0130 Front HO2S circuit problem

• The PCM monitors the front HO2S impedance when under the front HO2S heater control. If the impedance is more than 500 ohms, the PCM determines that there is a front HO2S circuit problem.

P0131 Front HO2S circuit low input

• The PCM monitors the input signal from the front HO2S and the front HO2S output current when the engine is running. If the input signal is less than 1.8 V or the output current is less than –5 mA, the PCM determines that the front HO2S circuit voltage is low.

P0132 Front HO2S circuit high voltage

• The PCM monitors the input voltage from the front HO2S when the engine is running. If the input voltage is more than 1.2 V, the PCM determines that the front HO2S circuit voltage is high.

P0134 Front HO2S circuit no activity detected

MONITORING CONDITION

― Front HO2S, front HO2S heater and TWC repair verification drive mode

― Following conditions are met:

• Engine speed is 1,500 rpm or more.

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

• Within feed-back range

P0138 Rear HO2S circuit high voltage

• The PCM monitors the input voltage from the rear HO2S when the engine is running. If the input voltage is more than 1.2 V, the PCM determines that the rear HO2S circuit voltage is high.

P0140 Rear HO2S circuit no activity detected

MONITORING CONDITION

― HO2S, HO2S heater and TWC repair verification drive mode

― Following conditions are met:

• Engine speed is 1,500 rpm or more.

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

• Within feed-back range

P0222 TP sensor No.2 circuit low input

• The PCM monitors the input voltage from the TP sensor No.2 when the engine is running. If the input voltage is less than 0.10 V, the PCM determines that the TP sensor No.2 circuit input voltage is low.

P0223 TP sensor No.2 circuit high input

• The PCM monitors the input voltage from the TP sensor No.2 when the engine is running. If the input voltage is more than 4.9 V, the PCM determines that the TP sensor No.2 circuit input voltage is high.

P0327 KS circuit low input

• The PCM monitors the input signal from the KS when the engine is running. If the input voltage is less than 1.25 V, the PCM determines that the KS circuit has a malfunction.

P0328 KS circuit high input

• The PCM monitors the input signal from the KS when the engine is running. If the input voltage is more than 3.75 V, the PCM determines that the KS circuit has a malfunction.

P0335 CKP sensor circuit problem

P0340 CMP sensor circuit problem

P0351 Ignition coil No.1 control circuit malfunction

• If the PCM detects an abnormal voltage value when ignition coil No.1 is energized under the following monitoring conditions, the PCM determines that the ignition coil No.1 control circuit has a malfunction.

MONITORING CONDITIONS

― Engine speed is less than 3,000 rpm.

― Battery voltage 9—16.5 V

P0352 Ignition coil No.2 control circuit malfunction

• If the PCM detects an abnormal voltage value when ignition coil No.2 is energized under the following monitoring conditions, the PCM determines that the ignition coil No.2 control circuit has a malfunction.

MONITORING CONDITIONS

― Engine speed is less than 3,000 rpm.

― Battery voltage 9—16.5 V

P0353 Ignition coil No.3 control circuit malfunction

• If the PCM detects an abnormal voltage value when ignition coil No.3 is energized under the following monitoring conditions, the PCM determines that the ignition coil No.3 control circuit has a malfunction.

MONITORING CONDITIONS

― Engine speed is less than 3,000 rpm.

― Battery voltage 9—16.5 V

P0354 Ignition coil No.4 control circuit malfunction

• If the PCM detects abnormal voltage value when ignition coil No.4 is energized under the following monitoring conditions, the PCM determines that the ignition coil No.4 control circuit has a malfunction.

MONITORING CONDITIONS

― Engine speed is less than 3,000 rpm.

― Battery voltage 9—16.5 V

P0401 EGR flow insufficient detected

• If the fluctuation in intake manifold pressure (3 times average value) is too low when the EGR value opens/closes.

P0403 EGR control circuit problem

• The PCM monitors the EGR valve control signal. If the voltage of the EGR valve control signal remains low or high, the PCM determines that there is the EGR control circuit problem.

P0420 Catalyst system efficiency below threshold

MONITORING CONDITION

― HO2S, HO2S heater and TWC repair verification drive mode

― Engine speed is 1,500—3,000 rpm.

― Calculated TWC temperature in PCM is more than 600 °C {1112 °F} (MTX), more than 620 °C {1148 °F} (ATX).

― Calculated load is 17—48 %.*¹

*¹: Maximum calculated load value varies depending on engine speed.

P0443 Purge solenoid valve circuit problem

• The PCM monitors the purge solenoid valve control signal. If the voltage remains low or high, the PCM determines that there is a purge solenoid valve circuit problem.

P0480 Cooling fan control circuit problem

• The PCM monitors input voltage from the fan control module. If the voltage remains low or high, the PCM determines that there is a cooling fan control circuit problem.

P0500 VSS circuit problem

• The PCM monitors the vehicle speed signal. If the PCM does not receive the input vehicle speed signal, the PCM determines that there is a VSS circuit problem.

P0505 IAC system problem

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

P0601 PCM memory check sum error

• PCM internal malfunction.

P0602 PCM programming error

• No configuration data in the PCM.

P0604 PCM random access memory error

• PCM internal random access memory error.

P0606 PCM processor

• PCM internal malfunction.

P0610 PCM vehicle options error

• PCM data configuration error.

P0638 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.

P0660 Variable intake air control circuit/open

• The PCM could not perform the self-test for the variable intake air control circuit.

P0668 PCM temperature sensor circuit low input

P0669 PCM temperature sensor circuit high input

P1384 Variable valve timing control system operation error

P1515 Current sensor circuit problem

• The PCM monitors the input voltage from the current sensor. If the input voltage is less than 0.24 V or more than 4.65 V, the PCM determines that there is a current sensor circuit problem.

P2008 Variable tumble control circuit/open

• Variable tumble control IC error.

P2016 Variable tumble shutter valve switch circuit low

• The PCM monitors the input voltage from the variable tumble shutter valve switch. If the input voltage is less than 0.06 V, the PCM determines that the variable tumble shutter valve switch circuit voltage is low.

P2088 Variable valve timing control circuit low

*: Detected specification value depends on the battery voltage.

P2089 Variable valve timing control circuit high

• If the PCM detects that the OCV drive current is as specified or more when the OCV control duty target is 3 % or less, the PCM determines that the variable valve timing control circuit high.

P2096 Target A/F feedback system too lean

P2097 Target A/F feedback system too rich

P2101 Throttle actuator power supply line circuit problem

• The PCM monitors the input voltage from the drive-by-wire relay. The PCM turns the drive-by-wire relay on but the input voltage is 5.0 V or less, the PCM determines that the drive-by-wire relay control circuit voltage is low.

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

P2107 Throttle actuator control module processor error

• PCM internal malfunction.

P2108 Throttle actuator control module performance error

• PCM internal malfunction.

P2109 TP sensor minimum stop range/performance problem

• The PCM monitors the minimum TP when the closed TP learning is completed. If the TP is 0.339 V or less or 0.66V or more, the PCM determines that there is a TP sensor minimum stop range/performance problem.

P2112 Throttle actuator control system range/performance problem

• The PCM monitors the throttle actuator control duty ratio when the engine is running. If the duty ratio is 95% or more, the PCM determines that there is a throttle actuator control system range/performance problem.

P2119 Throttle actuator control throttle body range/performance problem

• The PCM compares the actual TP with initial setting TP when the ignition switch is turned off. If the TP is lower than the initial setting TP, the PCM determines that there is a throttle valve return spring malfunction.

P2122 APP sensor No.1 circuit low input

• The PCM monitors the input voltage from the APP sensor No.1 when the engine is running. If the input voltage is 0.35 V or less, the PCM determines that the APP sensor No.1 circuit input voltage is low.

P2123 APP sensor No.1 circuit high input

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

P2127 APP sensor No.2 circuit low input

• The PCM monitors the input voltage from the APP sensor No.2 when the engine is running. If the input voltage is 0.20 V or less, the PCM determines that the APP sensor No.2 circuit input voltage is low.

P2128 APP sensor No.2 circuit high input

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

P2135 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 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 a APP sensor No.1/No.2 voltage correlation problem.

P2177 System too lean off idle

P2178 System too rich off idle

P2187 System too lean at idle

P2188 System too rich at idle

P2195 Front HO2S signal stuck lean

MONITORING CONDITION

― Fuel injection control system status: feedback zone

― ECT is more than 70 °C {158 °F}.

― Engine speed is more than 1,500 rpm.

P2196 Front HO2S signal stuck rich

• The PCM monitors the front HO2S output voltage when the following conditions are met. If output voltage is more than 0.45 V for 46 s, the PCM determines that the front HO2S signal remains rich.

MONITORING CONDITION

― Fuel injection control system status: feedback zone

― ECT: more than 70 °C {158 °F}

― Engine speed: more than 1,500 rpm

P2502 Charging system voltage problem

• The PCM determines that the generator output voltage is more than 17 V or the battery voltage is less than 11 V while the engine running.

P2503 Charging system voltage low

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

P2504 Charging system voltage high

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

P2507 PCM power input signal low