DTC P0850-29: Park/Neutral Switch Input Circuit - Signal invalid: Action
NOTE:
This DTC may be set following a valid emergency park release operation. Establish if the emergency park release has been used on this vehicle
- Prioritised steps to perform:
- Check the integrity of the emergency park release mechanism. Rectify as necessary
- Check the integrity of the parklock mechanism. Rectify as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s)
- Start the vehicle and allow to reach normal operating temperature while engaging and disengaging Park with the gear selector several times
- If fault persists, check the transmission fluid level using the Jaguar Land Rover approved diagnostic equipment to run the 8-speed ZF - Automatic Transmission Fluid Level Check Application
- Refer to the appropriate service information and check the automatic transmission fluid quality. If the condition is unsatisfactory, raise a Technical Assist (TA) for further support
- Clear Diagnostic Trouble Code(s) and retest
- If the fault persists, raise a Technical Assist (TA) for further support