Inspection and Verification

Inspection and verification

1. Verify the customer concern.
^ Note that intermittent fault reports may be due to the cycling operation of the field effect transistors (FETs)
2. Visually inspect for obvious mechanical or electrical faults.

Mechanical Electrical
^ Headlamp(s) condition and fitment ^ Fuses Battery junction box (BJB) - link 11E BJB - link 15E BJB - link 16E BJB - link 25E Central junction box (CJB) - Fuse 61P CJB - Fuse 56P CJB - Fuse 27P CJB - Fuse 62P CJB - Fuse 18P CJB - Fuse 2P CJB - Fuse 4P CJB - Fuse 67P
^ Bulb(s) and fitment ^ Relays Autolamp relay sidelamp relay
^ Bulb holder(s) and fitment ^ Wiring harness
^ Lighting control switch and fitment ^ Loose or corroded connector(s)
^ Left-hand steering column ^ Battery junction box (BJB)
multifunction switch and fitment ^ Central junction box (CJB)
^ Adaptive front lighting system (AFS) module
^ Headlamp power modules
^ Instrument panel cluster (IPC)
^ Steering angle sensor module (SASM)
^ Transmission control module (TCM)
^ Engine control module (ECM)
^ Anti-lock brake system (ABS) control module
^ Air suspension control module
^ Local interconnect network (LIN) circuits
^ Controller area network (CAN) circuits

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index.
^ Because the DTCs are stored in more than one module, a complete vehicle read is recommended
^ Make sure that all DTCs are cleared the rectification