Inspection and verification
1. Check the validity of the customer's complaint by using the system.
2. Perform a visual inspection for obvious mechanical or electrical damage.
Visual inspection table
|
Mechanical factors |
Electrical factors |
|
– Damaged sound signal(s) |
- Blown fuse - Relay - Damaged wiring harness – Loose or corroded plug(s) |
3. If an obvious cause for the complaint noted or described by the customer is found, correct it (if possible) before proceeding with further actions.
4. If the cause of the malfunction is not obvious, clarify the malfunction symptom and refer to the Malfunction Symptom Table.
Table of signs of malfunction
|
State |
Possible Causes |
Action |
|
•The sound signal sounds continuously |
•Electric circuit. •Horn relay. •Sound signal switch. |
• Proceed to PINPOINT TEST A. |
|
•The sound signal does not sound |
•Fuse 7 (40 A). •Fuse 34 (15 A). •Electric circuit. •Horn relay. •Sound signal switch. •Beep(s). |
• Proceed to PINPOINT TEST B. |