GM Service Manual Online
For 1990-2009 cars only

Power Mirrors Inoperative - One LH Outside Mirror Inoperative

Step

Action

Value(s)

Yes

No

1

Was the Power Mirrors System Check performed?

--

Go to Step 2

Go to Outside Mirrors System Check .

2

  1. Move the rocker switch to the LH side to choose the LH outside rear view mirror.
  2. Disconnect the LH outside rear view mirror connector.
  3. Activate the outside remote control rear view mirror switch to the left and then to the right.
  4. Use the DMM to measure the voltage between terminals 1 and 3 of the LH outside rear view mirror connector.

Is the measured voltage within the specified value?

B+

Go to Step 4

Go to Step 3

3

  1. Locate an open or a high resistance in circuits B2 and/or FA4.
  2. Repair the open or the high resistance in circuits B2 and/or FA4.
  3. Replace the outside remote control rear view mirror switch if these circuits are OK. Refer to Front Side Door Trim Panel Replacement in Doors.

Is the repair or replacement complete?

--

Go to Step 7

--

4

  1. Activate the outside remote control rear view mirror switch upward and downward.
  2. Use the DMM to measure the voltage between terminals 2 and 3 of the LH outside rear view mirror connector.

Is the measured voltage within the specified value?

B+

Go to Step 6

Go to Step 5

5

  1. Locate an open or a high resistance in circuits U1 and/or FA4.
  2. Repair the open or the high resistance in circuits U1 and/or FA4.
  3. Replace the outside remote control rear view mirror switch if these circuits are OK. Refer to Front Side Door Trim Panel Replacement in Doors.

Is the repair or replacement complete?

--

Go to Step 7

--

6

Replace the LH outside rear view mirror. Refer to Power Mirror Replacement in Doors.

Is the replacement complete?

--

Go to Step 7

--

7

  1. Connect all connectors and components that were disconnected.
  2. Verify that the LH outside rear view mirror operates properly.

Does the LH outside rear view mirror operate properly?

--

System OK

Go to Step 1

Power Mirrors Inoperative - One RH Outside Mirror Inoperative

Step

Action

Value(s)

Yes

No

1

Was the Power Mirrors System Check performed?

--

Go to Step 2

Go to Outside Mirrors System Check .

2

  1. Move the rocker switch to the RH side to choose the RH outside rear view mirror.
  2. Disconnect the RH outside rear view mirror connector.
  3. Activate the outside remote control rear view mirror switch to the left and then to the right.
  4. Use the DMM to measure the voltage between terminals 1 and 3 of the RH outside rear view mirror connector.

Is the measured voltage within the specified value?

B+

Go to Step 4

Go to Step 3

3

  1. Locate an open or a high resistance in circuits R11, R110, R4, FA4, FA7 and/or FA700.
  2. Repair the open or the high resistance in circuits R11, R110, R4 and/or FA4, FA7 and/or FA700.
  3. Replace the outside remote control rear view mirror switch if these circuits are OK. Refer to Front Side Door Trim Panel Replacement in Doors.

Is the repair or replacement complete?

--

Go to Step 7

--

4

  1. Activate the outside remote control rear view mirror switch upward and downward.
  2. Use the DMM to measure the voltage between terminals 2 and 3 of the RH outside rear view mirror connector.

Is the measured voltage within the specified value?

B+

Go to Step 6

Go to Step 5

5

  1. Locate an open or a high resistance in circuits P3, P30, P2, FA4, FA7 and/or FA700.
  2. Repair the open or the high resistance in circuits P3, P30, P2, FA4, FA7 and/or FA700.
  3. Replace the outside remote control rear view mirror switch if these circuits are OK. Refer to Front Side Door Trim Panel Replacement in Doors.

Is the repair or replacement complete?

--

Go to Step 7

--

6

Replace the RH outside rear view mirror. Refer to Power Mirror Replacement in Doors.

Is the replacement complete?

--

Go to Step 7

--

7

  1. Connect all connectors and components that were disconnected.
  2. Verify that the RH outside rear view mirror operates properly.

Does the RH outside rear view mirror operate properly?

--

System OK

Go to Step 1