DTC U0407-86: Invalid Data Received From Glow Plug Control Module 1 - 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.
- Vehicle Conditions to Enable DTC Logging Strategy
- Using the Jaguar Land Rover approved diagnostic equipment, activate the glow plug control module
- Prioritised Checks to Perform
- Using the Jaguar Land Rover approved diagnostic equipment, check for other glow plug related DTCs and perform the relevant corrective actions
- Refer to the appropriate system wiring diagram and check the glow plug control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
- Refer to the appropriate system wiring diagram and check the LIN 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, clear the DTCs and retest. If the fault persists, install a new glow plug control module