Inspection and verification
1. Check the validity of the customer's complaint.
2. Perform a visual check for obvious signs of mechanical or electrical damage.
Visual Inspection Table
Electrical factors:
- Fuse (And)
- Lamp (s)
- Wiring harness
- electrical connector (s)
3. If there is an obvious cause for the problem you identified or the customer described, fix it before proceeding with the next steps (if possible).
4. If the cause is not visually obvious, check the symptom and refer to the Troubleshooting Table.
Trouble symptom table
|
State |
Possible Causes |
Action |
|
• Both headlights do not work |
•Fuse (And) •Chain (And) •Light switch • The switch of indexes of turn. • Central connection box (CJB). •Headlight. |
• Go to PINPOINT TEST A |
|
•Dipped headlights do not work |
•Chain (And) • The switch of indexes of turn. • Relay low beam headlights. •Battery connection box (BJB). •Headlights |
• Go to PINPOINT TEST B |
|
•High beam headlights not working |
•Chain (And) • Relay high beam headlights. •Battery connection box (BJB). • The switch of indexes of turn. |
• Go to PINPOINT TEST C |
|
• One headlight does not work in low beam mode |
•Fuse (And) •Chain (And) •Headlight. |
• Go to PINPOINT TEST D |
|
•Headlight does not work, left side or right side |
•Chain (And) •Headlight, left side or right side |
•Check the appropriate headlight. If necessary, INSTALL the new element. Check the correct operation of the system. If the problem persists, REPAIR the grounding of the affected headlight using the wiring diagrams. Check the correct operation of the system. |
|
• One headlight does not work in high beam mode |
•Fuse (And) •Chain (And) •Headlight. |
• Go to PINPOINT TEST E |
|
• Headlights are constantly on |
•Chains • Relay low beam headlights. • Relay high beam headlights. •Light switch • The switch of indexes of turn. |
• Go to PINPOINT TEST F |
|
• The headlight signaling function does not work |
•Chain (And) • The switch of indexes of turn. |
• Go to PINPOINT TEST G |
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