Inspection and verification
1. Check the validity of the customer's complaint.
2. Perform a visual inspection for obvious signs of mechanical or electrical damage.
Visual inspection table
Electrical factors:
- Fuse Box(s)
- Lamp(s)
- Wiring harness
- Electrical connector(s)
3. If an obvious cause for the problem you identified or the customer described is found, correct it (if possible) before proceeding with further actions.
4. If the cause is not visually obvious, check the malfunction symptom and refer to the Malfunction Symptom Table.
Table of signs of malfunctions
|
State |
Possible Causes |
Action |
|
•Both headlights are not working |
•Fuse(s) •Chain(s) •Light switch •Direction indicator switch. •Central Junction Box (CJB). •Headlight. |
• Proceed to PINPOINT TEST A |
|
•Low beam headlights do not work |
•Chain(s) •Direction indicator switch. •Low beam headlight relay. •Battery Junction Box (BJB). •Headlights |
• Proceed to PINPOINT TEST B |
|
•High beam headlights do not work |
•Chain(s) •High beam headlight relay. •Battery Junction Box (BJB). •Direction indicator switch. |
• Proceed to PINPOINT TEST C |
|
•One headlight does not work in low beam mode |
•Fuse(s) •Chain(s) •Headlight. |
• Proceed to PINPOINT TEST D |
|
•Headlight not working, left side or right side |
•Chain(s) •Headlight, left side or right side |
•Check the affected headlamp. If necessary, INSTALL a new component. Check for proper system operation. If the fault persists, RESTORE the ground connection to the affected headlamp using the wiring diagrams. Check for proper system operation. |
|
•One headlight does not work in high beam mode |
•Fuse(s) •Chain(s) •Headlight. |
• Proceed to PINPOINT TEST E |
|
•The headlights are constantly on |
•Chains •Low beam headlight relay. •High beam headlight relay. •Light switch •Direction indicator switch. |
• Proceed to PINPOINT TEST F |
|
•The headlight signaling function does not work |
•Chain(s) •Direction indicator switch. |
• Proceed to PINPOINT TEST G |