DTC P188A-98: Differential Oil Temperature Too High/Too Low - Component or system over temperature: Action
NOTE:
This DTC may be induced by excessive electric differential clutch operation due to prolonged off road or track driving.
- Refer to the relevant section of the service information and check the electric differential fluid level. Rectify any fluid leaks and add fluid as necessary
- Check the specification of the electric differential fluid. Rectify as necessary
- Refer to the appropriate system wiring diagrams and check the rear differential fluid temperature sensor signal circuit for high resistance. Repair the wiring harness or install a new rear differential fluid temperature sensor as necessary