P2797 Possible Causes
- Faulty auxiliary transmission fluid pump
- Auxiliary transmission fluid pump harness is open or shorted
- Poor electrical connection in auxiliary transmission fluid pump circuit
How to Fix Code P2797
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Illuminated engine light (or service engine soon warning light)
P2797 Meaning
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 on commands from the inverter module. The third motor control module controls the auxiliary transmission fluid pump motor. The hybrid powertrain control module and motor control modules share the power inverter module’s ignition voltage circuit, battery voltage circuits, and chassis ground.