P0AE0

DTC POAFO (111): Motor Control Module (MCM) Internal Temperature Sensor Circuit High Voltage




General Description
The motor control processor obtains the voltage change value of the motor power inverter (MPI) module internal temperature from the motor control subprocessor through serial communication, and the processor uses this value to protect and control temperature rise in the MPI module. When this temperature sensor malfunctions and the temperature of the MPI module rises, the motor control module (MCM) may malfunction and may be unable to control the motor normally. When the motor control processor receives a specified value of the MPI module temperature continuously for a specified time, the motor control processor detects a malfunction and a DTC is stored.




Monitor Execution, Sequence, Duration, DTC Type, OBD Status




Enable Conditions

Malfunction Threshold
The voltage change value of the MPI module temperature is more than 4.63 V for at least 0.8 seconds.

Diagnosis Details

Conditions for illuminating the MIL
When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM and MCM memory.

Conditions for clearing the MIL
The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.