DTC Advanced Diagnostics: P0A65 (29)
DTC P0A65 (29): Traction Motor Phase W Current High
General Description
The motor control module controls the motor output based on the phase motor current sensor signals. When the motor phase W current sensor output voltage is a specified voltage for a set time, the motor control module detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 500 milliseconds or more |
| DTC Type | Two drive cycles, MIL on, POWER SYSTEM indicator on, 12 volt battery charging system indicator off |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| 12 volt battery voltage | 6.5 V | - |
Malfunction Threshold
The motor phase W current sensor output voltage is more than 4.75 V for at least 500 milliseconds.
Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- Motor phase W current sensor ground line open
- Motor phase W current sensor failure
- Motor control module failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the motor control module memory. If the malfunction returns in the next (second) drive cycle, the MIL and the POWER SYSTEM indicator comes on and a Confirmed DTC and the freeze data are stored.
Conditions for clearing the DTC
The MIL and the POWER SYSTEM indicator is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the POWER SYSTEM indicator, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.