Inspection And Verification
CAUTION:
Diagnosis by substitution from a donor vehicle is NOT
acceptable. Substitution of control modules does not guarantee confirmation of a fault and may also cause additional faults in the vehicle being checked and/or the donor vehicle.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection
Electrical - Battery
- Fuses
Central and Battery Junction Boxes
Megafuses
- Wiring harness
- Damaged, loose or corroded connectors
- Touch Screen Display (TSD)
- GPS antenna
- TV antenna
- Satellite antenna
- FM antenna
- Companion camera
- Rear view camera
- Microphone
- Accessory USB Unit (AUU)
- Steering wheel controls
- Clock spring
- Integrated Head Unit (IHU)
- Audio amplifier
- Anti-lock Brake System (ABS) module
- Wheel speed sensors
- Vehicle Information and Communication System (VICS Japan only) receiver
- VICS beacon antenna (Japan only)
- Controller Area Network (CAN) circuits
- Media Oriented System Transport (MOST) system
- Gigabit Video Interface (GVIF)
- Central Junction Box (CJB)
- Terrain Response
- Mobile Telephone
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
- If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
- Verify the customer concern.
- Visually inspect for obvious signs of damage, water ingress and system integrity.
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.