Conditions for Running the DTC
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.
P0C77
- Ignition voltage is 9-18 V at the drive motor generator battery control module.
- The current limit relay and negative contactor are commanded closed by the hybrid powertrain control module.
- The terminal voltage is less than 60 V prior to starting the precharge sequence.
P1A20
- Ignition voltage is 9-18 V at the drive motor generator battery control module.
- There are less than 4 hybrid battery voltage sensor faults.