DTC P2544-86: Torque Management Request Input Signal "A" - Signal invalid: Action
- Prioritized steps to perform:
- Check startup battery charge and condition
- Read all DTCs and investigate any DTCs relating to startup battery voltage supply. Rectify as required
- Using the Jaguar Land Rover approved diagnostic equipment, check for other transmission related DTCs and refer to the relevant DTC index
- Using the Jaguar Land Rover approved diagnostic equipment, reconfigure the transmission control module with the latest level software and retest
- If the fault persists, raise a Technical Assist (TA) for further support