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?

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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 B, and pin E of the power outside rearview mirror remote control switch.
  4. Actuate the up (forward) selection for the right power outside rearview mirror switch.

Is continuity present?

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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 up (forward) 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 B of the power outside rearview mirror remote control switch.
  2. Actuate the down (rear) 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 down (rear) direction 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 B, and the right power outside rearview mirror connector, cavity D, for CKT 1498 (BRN/WHT).

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 E, 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

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10

Repair the open in CKT 1498 (BRN/WHT) 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

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11

Replace the right power outside rearview mirror.

Refer to Power Mirror Replacement .

Is the repair complete?

--

Go to Step 13

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12

Repair the open in CKT 1497 (LT BLU/WHT) between the right power outside rearview mirror connector, cavity E, 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?

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System OK

Go to Step 3