GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review power mirrors operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms

2

  1. Move the Selector Switch to the Left position.
  2. Disconnect the LH outside power mirror.
  3. Connect a test lamp from CKT 82 (LT BLU) cavity E at the LH outside power mirror to ground.
  4. Press the switch to the LEFT position.

Does the test lamp light?

--

Go to Step 6

Go to Step 3

3

  1. Using a test lamp backprobe CKT 82 (LT BLU) at the Outside Rearview Mirror Control Switch to ground.
  2. Press the Outside Mirror Control Switch to the Left position.

Does the test lamp light?

--

Go to Step 4

Go to Step 5

4

Locate and repair an open in CKT 82 (LT BLU) between the LH outside power mirror and the outside rearview mirror control switch.

Is the repair complete?

--

Go to Step 7

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5

Replace the outside rearview mirror control switch. Refer to Power Accessory Switch Panel Replacement

Does the LH power mirror operate properly?

--

Go to Step 7

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6

Replace the LH outside power mirror. Refer to Outside Rearview Mirror Replacement

Does the LH power mirror operate properly?

--

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