|
|
ECM EC-549 < ECU DIAGNOSIS > [VQ37VHR] C D E F G H I J K L M A EC N P O DTC RELATED ITEM Engine operating condi- tion in fail-safe mode Detected items Remarks Reference page Engine speed will not Malfunction indicator When there is an open circuit on MIL circuit, the ECM cannot warn the DTC No. Detected items Engine operating condition in fail-safe mode U0113 U1003 U1011 U1024 Can communication circuit VVEL actuator motor relay is turned off, and VVEL value is become at a minimam angle. P0011 P0021 Intake valve timing control The signal is not energized to the intake valve timing control solenoid valve and the valve P0102 P010C Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut. P0117 Engine coolant tempera- Engine coolant temperature will be determined by ECM based on the following condition. Condition Engine coolant temperature decided (CONSULT-III display) Just as ignition switch is turned ON 40 ° C (104 ° F) Approx 4 minutes or more after en- 80 ° C (176 ° F) Except as shown above 40 - 80 ° C (104 - 176 ° F) (Depends on the time) When the fail-safe system for engine coolant temperature sensor is activated, the cooling P0122 Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in P0500 Vehicle speed sensor When the fail-safe system for vehicle speed sensor is activated, the cooling fan operates P0524 Engine oil pressure The signal is not energized to the intake valve timing control solenoid valve and the valve P0605 ECM (When ECM calculation function is malfunctioning:) P0643 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a |