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
|
Mechanical factors |
Electrical Factors |
|
– Engine/engine compartment or underbody elements – Fluid level – Installation of accessories |
- Fuse (And) – Loose or corroded connector (s) – Shield (ki) appliances – Oil pressure and oil temperature display – wiring harness - Electrical circuit – Lamps |
3. If an obvious cause of the noted or described malfunction is found, correct it before proceeding to the next steps (if possible).
4. If the cause is not visually obvious, check the symptom and refer to the Symptom Chart.
Symptom table
|
State |
Possible Causes |
Action |
|
•Dashboard backlight does not work |
•Fuse. • Headlight switch. •Electrical circuit. |
• Go to PINPOINT TEST A. |
|
• Illumination of the instrument panel does not work |
•Electrical circuit. •Dashboard. |
• Go to PINPOINT TEST B. |
|
• The backlight of the microclimate control panel does not work |
•Electrical circuit. • Lamp of illumination of the panel of management of a microclimate. |
• Go to PINPOINT TEST C. |
|
• Audio system backlight does not work |
•Electrical circuit. • Audio control unit. |
• Go to PINPOINT TEST D. |
|
• The illumination of the gear lever does not work. |
•Electrical circuit. • Socket of a lamp of illumination of the lever of a gear change. |
• Go to PINPOINT TEST E. |
|
• The cigarette lighter backlight does not work. |
•Electrical circuit. • Cigarette lighter socket. |
• Go to PINPOINT TEST F. |
|
• the backlight of the door lock/unlock switch does not work |
•Electrical circuit. • Door lock/unlock switch |
• Go to PINPOINT TEST G. |
|
• Traction control switch backlight does not work. |
•Electrical circuit. • Traction control switch. |
• Go to PINPOINT TEST H. |
|
• Hazard light switch backlight does not work. |
•Electrical circuit. • The switch of the emergency light alarm system. |
• Go to PINPOINT TEST I. |
|
• The backlight of the heated front seat switch does not work. |
• Front seat heating switch. |
• Go to PINPOINT TEST J |
|
• The brightness of the instrument panel backlight is not adjustable |
• Dimmer instrument lighting. |
• INSTALL a new headlight switch/dimmer switch assembly. |
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