GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: This diagnostic table should only be used if the LH mirror moves left to right but will not move up and down.

1

  1. Disconnect the right power outside mirror connector.
  2. Position the selector switch to the RH power mirror.
  3. Connect a test lamp between CKT 889 (PPL/WHT) cavity D and ground.
  4. Press the switch to the down position.

Does the test lamp light?

--

Go to Step 2

Go to Step 3

2

Replace the vertical power mirror motor. Refer to Outside Rearview Mirror Replacement in Doors.

Is the repair complete?

--

System OK

--

3

  1. Locate and repair open in CKT 889 (PPL/WHT) between the RH outside power mirror and the power mirror switch.
  2. If there is no open, replace the power mirror switch. Refer to Power Accessory Switch Panel Replacement .

Is the repair complete?

--

System OK

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