GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the power mirror circuit description and operation and perform the necessary inspections?

--

Go to Step 2

Go to Symptoms

2

Verify the fault is present.

Does the system operate normally?

--

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

Go to Step 3

3

  1. Disconnect the power outside rearview mirror remote control switch connector.
  2. Select the right power outside rearview mirror operation.
  3. Connect a J 39200 digital multimeter between pin E, and pin A of the power outside rearview mirror remote control switch.
  4. Actuate the left direction selection for the right power outside rearview mirror switch.

Is continuity present?

--

Go to Step 4

Go to Step 9

4

  1. Connect a J 39200 digital multimeter between pin D, and pin C of the power outside rearview mirror remote control switch.
  2. Actuate the left direction selection for the right power outside rearview mirror.

Is continuity present?

--

Go to Step 5

Go to Step 9

5

  1. Connect a J 39200 digital multimeter between pin D, and pin A of the power outside rearview mirror remote control switch.
  2. Actuate the right direction selection for the right power outside rearview mirror.

Is continuity present?

--

Go to Step 6

Go to Step 9

6

  1. Connect a J 39200 digital multimeter between pin E, and pin C of the power outside rearview mirror remote control switch.
  2. Actuate the right selection for the right power outside rearview mirror.

Is continuity present?

--

Go to Step 7

Go to Step 9

7

  1. Disconnect the right power outside rearview mirror connector.
  2. Connect a J 39200 digital multimeter between the power outside rearview mirror remote control switch connector, cavity A, and the right power outside rearview mirror connector, cavity F, for CKT 90 (GRY).

Is continuity present?

--

Go to Step 8

Go to Step 10

8

Connect a J 39200 digital multimeter between the power outside rearview mirror remote control switch connector, cavity C, and the right power outside rearview mirror connector, cavity C, for CKT 1497 (LT BLU/WHT).

Is continuity present?

--

Go to Step 11

Go to Step 12

9

Replace the power outside rearview mirror remote control switch.

Refer to Power Mirror Switch Replacement .

Is the repair complete?

--

Go to Step 13

--

10

Repair the open in CKT 90 (GRY) between the power outside rearview mirror remote control switch and the right power outside rearview mirror.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Step 13

--

11

Replace the right power outside rearview mirror.

Refer to Power Mirror Replacement .

Is the repair complete?

--

Go to Step 13

--

12

Repair the open in CKT 1497 (LT BLU/WHT) between the right power outside rearview mirror connector, cavity C, and splice S604.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Step 13

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13

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 3