Special tool
 | Digital Multimeter 105-R0051 or equivalent |
 | Electrical Probe Kit 29-011A |
Inspection and verification
1. Check the customer complaint.
2. Perform a visual inspection for obvious signs of mechanical or electrical damage.
Visual inspection table
Electrical factors:
- Electrical circuit(s)
- Fuse box
- Lamp(s)
- Loose, corroded or faulty plug connector
3. If an obvious cause for the problem you have identified or the customer has described is found, correct it (if possible) before proceeding with further actions.
4. If the cause of the problem is not visually obvious, check the malfunction symptom and refer to the Malfunction Symptom Table.
Table of signs of malfunction
|
State |
Possible Causes |
Action |
|
•Brake lights don't work |
•Lamp(s) •Fuse(s) •Electrical circuit(s) •Brake light switch |
• Go to PINPOINT TEST U |
|
•One or more brake lights are not working |
•Lamp(s) •Electrical circuit(s) •Rear light assembly •Upper additional brake light - |
• Proceed to PINPOINT TEST V |
|
•Brake lights are constantly on |
•Chain(s) •Brake light switch •ABS module •Powertrain Control Module (PCM) •Vehicle speed control module. |
• Proceed to PINPOINT TEST W |