Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
| Symptom | Suspected Area | See page |
|---|---|---|
| Rear window defogger system does not operate | Refer to troubleshooting | |
| Rear window defogger does not operate (indicator ON) | RR DEF relay | - |
| RR DEF fuse | - | |
| Back door glass (defogger wire) | - | |
| Harness or connector | - | |
| Rear window defogger does not operate (indicator OFF) | HEATER fuse | - |
| Heater control sub-assembly (rear window defogger switch)* | ||
| Harness or connector | - |
*: for Automatic Air Conditioning System