| Component Location |

| 1. ICU Junction Block
2. Rear glass defogger switch (Manual type) |
3. Rear glass defogger
switch (Auto type) 4. Rear glass defogger |
Inspection Wrap tin foil around the end of the voltmeter test lead to prevent damaging the heater line.
Replacement 1. Disconnect the negative (-) battery terminal. 2. Recover the refrigerant with a recovery / recycling / charging station. 3. When the engine is cool, drain the engine coolant from the radiator.