DTC P0C78-63: Hybrid/EV Battery System Precharge Time Too Long - Circuit/component protection time-out: Action
- Using the Jaguar Land Rover approved diagnostic equipment, check the electric power inverter converter module for related DTCs and refer to the relevant DTC index
- Check the integrity of the high voltage cable connectors. Check that the connector latches are engaged fully. Rectify as necessary
- Inspect the high voltage cables for damage. Install a new high voltage cable as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, run application - ECU Diagnostics/Battery Energy Control Module (BECM)/Clear DTCs. Retest. If the fault persists, raise a Technical Assistance (TA):
- Using the Jaguar Land Rover approved diagnostic equipment, run application - ECU Diagnostics/Battery Energy Control Module (BECM)/ECU Functions/Prior Approval - Display Traction Battery Data
- Attach the Pathfinder session file using 'Pathfinder Sessions'
- Use the Diagnostic Trouble Code (DTC) as a reference number in the Customer Comments field
- Describe primary and secondary diagnostics completed