| Component Location |

| 1. Rear glass defogger relay (Engine room relay box) 2. Rear glass defogger switch (A/C controller) | 3. Rear glass defogger |
Inspection Wrap tin foil around the end of the voltmeter test lead to prevent damaging the heater line. Apply finger pressure on the tin foil, moving the tin foil along the grid line to check for open circuits.
Troubleshooting Problem Symptoms Table Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor. Use the table below to help you find the cause of the problem.
C