DTC P188A-98: Differential Oil Temperature Too High/Too Low - Component or system over temperature: Action
NOTE:
- This DTC is set when the rear differential oil temperature exceeds 160°C
- If P0605-00 is also set, perform the relevant corrective action(s) first
- Refer to the relevant service information and check the rear differential oil quantity
- Refer to the relevant service information and check the rear differential oil specification
- Refer to the appropriate system wiring diagrams and check the rear differential oil temperature sensor signal circuit for short circuit to ground