Inspection and verification
1. Press the brake pedal to check the operation of the brake lights and clarify the customer's complaint.
2. Check the following causes of electrical system malfunctions:
Visual inspection table
Electrical factors:
- Electrical circuit(s)
- Fuse box
- Lamp(s)
- Loose, corroded or faulty plug
3. If the complaint is not resolved by this check, find the malfunction symptom(s) in the following Malfunction Symptom Table and proceed accordingly.
|
State |
Possible Causes |
Action |
|
•Brake lights don't work |
•Fuse F54 •Lamp(s) •Brake light switch •Electrical circuit(s). •Brake light relay •Rear light unit(s) •Electronic Stability Program (ESP). |
•Proceed to System Check E. |
|
•One or more brake lights are not working |
•Lamp •Rear light unit or additional brake light •Electrical circuit(s). |
•Proceed to System Check F. |
|
•Brake lights are constantly on |
•Brake light switch •Electrical circuit(s). •Electronic Stability Program (ESP). •ABS module. •Powertrain Control Module (PCM). •Vehicle speed control module. |
•Proceed to System Check G. |