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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Rear window defogger system does not operate | Air conditioning system | |
| Semiconductor pwr integration ECU | - | |
| Wire harness or connector | - | |
| Air conditioning amplifier assembly | - | |
| Back window glass (Rear window defogger wire) | - | |
| Air conditioning control assembly | - |