U2108-86: Adaptive Cruise Control - Signal invalid: Action
- Vehicle Conditions to enable DTC Logging Strategy
- Turn ignition on and wait for a few seconds. Active cruise control is not required
- Prioritized Checks to Perform
- Check adaptive Cruise Control Module for Diagnostic Trouble Codes
- Using the Jaguar Land Rover approved diagnostic equipment check "Network Overview" for off bus control modules. Refer to electrical circuit diagrams and check CAN circuits if required
- Clear the DTC and retest