Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Defogger Schematics | |||
1 | Did you perform the Stationary Windows Diagnostic System Check? | Go to Step 2 | |
2 | Disconnect the Heated Outside Rearview Mirror and Rear Window Defogger relay. Does the indicator remain illuminated on the Heater and A/C Control Module? | Go to Step 3 | Go to Step 4 |
3 | Test the supply voltage circuit of the heated mirrors for a short to battery positive voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 8 | Go to Step 5 |
4 | Inspect for a poor connection at the Heated Outside Rearview Mirror and Rear Window Defogger relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 8 | Go to Step 6 |
5 | Inspect for a poor connection at the harness connector of the Heater and A/C Control Module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 8 | Go to Step 7 |
6 | Replace the Heated Outside Rearview Mirror and Rear Window Defogger relay. Did you complete the replacement? | Go to Step 8 | -- |
7 | Replace Heater and A/C Control Module. Refer to Control Assembly Replacement in HVAC Systems - Automatic. Did you complete the replacement? | Go to Step 8 | -- |
8 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
