Circuit/System Verification
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, verify that DTCs P0A40, P0A45, P0A46, P0A78, P0A79, P0A3F, P0C05, P0C08, P0C0B, P0C0E, P0C4E, P0C4F, P0C52, P0C53, P0C57, P0C58, P0C61, P0C62, P0C5C, P0C5D, P1B03, P1B04 or P1B0D is not set.
- If DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Ignition ON, engine OFF, observe the scan tool battery energy control module contactor system status parameter. The status should display closed.
- If not the specified value, refer to Symptoms - Hybrid Controls .
- Cycle the ignition OFF for 2 minutes, ON for 2 minutes then OFF for at least 10 seconds.
- Ignition ON, Verify that DTCs P1B10 or P1B0F is not set.
- If the DTC is set, program the T6 drive motor generator power inverter module. If the DTC resets, replace the appropriate M15 drive motor with generator assembly.