P0607-49 Control Module Performance - Internal electronic failure: Action
- Check engine control module for stored DTCs and refer to the relevant DTC index
- Refer to relevant section of workshop manual and battery care manual. Check battery state of charge and starting/charging system performance
- Refer to the electrical circuit diagrams and check the power and ground circuits to the module. Repair circuit as required. Clear DTC and retest
- If fault persists, check and install a new rear differential control module as required