GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Schematic Reference: Outside Rearview Mirror Schematics

1

Did you review the heated mirror system operation and perform the neccessary inspection?

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Go to Step 2

Go to Symptoms - Doors

2

Verify that the Heated Mirrors Inoperative complaint is present.

Does the heated mirror system operate as described in the system description and operation?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Disconnect the connector C1 from both outside mirrors.
  2. Test the heated mirror supply voltage circuit for a short to ground.

Did you find and correct the condition?

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Go to Step 7

Go to Step 4

4

  1. Remove the mirror face (glass) from both outside mirrors. Refer to Mirror Face Replacement - Outside Electrochromatic .
  2. Disconnect the heated mirror harness connectors from the mirror faces.
  3. Test the mirror heater circuit for a short to ground.

Did you find and correct the condition?

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Go to Step 7

Go to Step 5

5

Inspect for poor connections at the harness connectors of the mirror faces. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 7

Go to Step 6

6

Replace the mirror face (glass). Refer to Mirror Face Replacement - Outside Electrochromatic .

Did you complete the repair?

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Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2