DTC U0284-87: Lost Communication with Active Grille Air Shutter Module "A" - Missing message: Action
WARNING: This page is about a different car, the 2019 Jaguar XE. 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.
- Refer to the electrical circuit diagrams and check the upper active grille air shutter motor power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
- Refer to the electrical circuit diagrams 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, check for other upper active grille air shutter related Diagnostic Trouble Code(s) and perform the relevant corrective actions