Inspection and verification
1. Check the validity of the customer's complaint by using the system.
2. Visually inspect for obvious signs of mechanical and electrical damage.
Visual inspection table
|
Mechanical factors |
Electrical factors |
|
- Executive device - Drive cable |
– Fuse(s) - Wiring harness – Loose or corroded connector(s) – Switch(es) - Electric motor |
3. If an obvious cause for the problem you have identified or the problem described by the customer is found, correct it (if possible) before proceeding with further actions.
4. If the malfunction is not visually obvious, check the malfunction symptom and refer to the Malfunction Symptom Table.
Table of signs of malfunction
|
State |
Possible Causes |
Action |
|
•The speed control system does not work |
•Electrical circuit(s) •Brake Pedal Position Switch (BPP) •Clutch pedal position switch (CPP) •Brake light switch •Speed control system switch(es) •Speed control system actuator •Fuse(s) |
•Proceed to Pinpoint Test A. |
|
•The speed control system does not disengage when the brake pedal is applied. |
•Brake Pedal Position Switch (BPP) •Electric circuit |
•Proceed to Pinpoint Test B. |
|
•Switch Malfunction - (COAST) |
•Switch - (COAST) •Electric circuit |
•Proceed to Pinpoint Test C. |
|
•Switch failure = (RESUME) |
•Switch = (RESUME) •Electric circuit |
•Proceed to Pinpoint Test D. |
|
•The speed control system does not disengage when the clutch pedal is operated. |
•Clutch pedal position switch (CPP) •Electric circuit |
•Go to Pinpoint Test E. |
|
•OFF switch malfunction |
•Speed control system switch |
•Install a new speed control switch |
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