DTC U0405-86: Invalid Data Received From Cruise Control Module - Signal invalid: Action
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The FlexRay wiring harness must not be repaired by making a localized wiring repair. A new wiring harness should be installed.
- Check the integrity of the speed control switches. Rectify as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, check the body control module for speed control switch related DTCs and refer to the relevant DTC index
- Refer to the appropriate system wiring diagram and check the adaptive speed control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, perform a CAN network integrity test. Refer to the appropriate system wiring diagram and check the high speed CAN bus (chassis) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Refer to the appropriate system wiring diagram and check the FlexRay bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, check the adaptive speed control module for related DTCs and refer to the relevant DTC index