Volt

DTC P2797

The power inverter module, often referred to as the drive motor generator power inverter module contains three motor control modules and the hybrid powertrain control module. Two of the motor control modules operate their respective drive motor generator based upon power inverter module commands. The third motor control module controls the auxiliary transmission fluid pump motor. The hybrid powertrain control module and the motor control modules share the power inverter module ignition voltage circuit, battery voltage circuits and chassis earth.

The actual auxiliary transmission fluid pump speed is 650 RPM less than the commanded speed.

DTC P2797 is a Type A DTC.

DTC P2797 is a Type A DTC.

There should always be other hybrid powertrain or motor control module DTCs set along with DTC P2797. Always diagnose other DTCs before addressing this DTC.

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

1. Verify that no other hybrid powertrain or motor control module DTC is set.

⇒	If any hybrid powertrain or motor control module DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .

⇒	If the DTC is set, refer to Auxiliary Fluid Pump Motor and Fluid Pump Disassemble , Table 1: Electric Auxiliary Pump Drive Motor Removal.

2. If the DTC is set, program the T6 power inverter module. If the DTC resets, replace the T6 power inverter module.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.