GM Service Manual Online
For 1990-2009 cars only

Power Mirrors Inoperative in Left/Right Direction - Left Side Without Memory

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Mirrors System Check?

--

Go to Step 2

Go to Outside Mirrors System Check

2

  1. Set the mirror select switch to the left.
  2. Use a J 39200 digital multimeter (DMM) in order to backprobe the power mirror switch terminal M and terminal B.
  3. Place the power mirror switch in the left position and then in the right position.

Is the voltage within the specified range?

10-15 V

Go to Step 3

Go to Step 7

3

  1. Disconnect the left outside power mirror connector.
  2. Connect the DMM between terminal A and terminal B of the left outside power mirror connector.
  3. Position the power mirror switch to the left and then to the right.

Is the voltage within the specified range?

10-15 V

Go to Step 8

Go to Step 4

4

  1. Connect the DMM between the left outside power mirror connector terminal B and ground.
  2. Position the power mirror switch to the right direction.

Is the voltage within the specified range?

10-15 V

Go to Step 6

Go to Step 5

5

Repair the open or the short to ground in CKT 81 (WHT). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

6

Repair the open or the short to ground in CKT 82 (LT BLU). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

7

Replace the power mirror switch. Refer to Power Mirror Switch Replacement .

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

8

Replace the left outside power mirror. Refer to Power Mirror Replacement .

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

Power Mirrors Inoperative in Left/Right Direction - Left Side With Memory

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Mirror System Check?

--

Go to Step 2

Go to Outside Mirrors System Check

2

  1. Set the select switch to the left outside power mirror.
  2. Use a J 39200 digital multimeter (DMM) in order to backprobe the following terminal:
  3. • The power mirror switch terminal 15 and terminal 11 (Oldsmobile)
    • The power mirror switch terminal M and terminal B (Buick)
  4. Position the power mirror switch to the left and then to the right.

Is the voltage within the specified range?

10-15 V

Go to Step 3

Go to Step 14

3

  1. Disconnect the left outside power mirror connector.
  2. Connect the DMM between terminal A and terminal B of the left outside power mirror connector.
  3. Position the power mirror switch to the left and then to the right.

Is the voltage within the specified range?

10-15 V

Go to Step 13

Go to Step 4

4

  1. Disconnect the memory seat/mirror module connector C1.
  2. Connect the DMM between the memory seat/mirror module connector terminal D6 and ground.
  3. Position the power mirror switch to the left position.

Is the voltage within the specified range?

10-15 V

Go to Step 6

Go to Step 5

5

Repair the open or the short to ground in CKT 1516 (LT BLU). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

6

  1. Connect the DMM between the memory seat/mirror module connector terminal D11 and ground.
  2. Position the power mirror switch to the right position.

Is the voltage within the specified range?

10-15 V

Go to Step 8

Go to Step 7

7

Repair the open or short to ground in CKT 1512 (WHT). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

8

  1. Connect the memory seat/mirror module connector C1.
  2. Use DMM in order to backprobe the memory seat/mirror module connector C3, between terminal A and terminal B.
  3. Position the power mirror switch to the left and then to the right.

Is the voltage within the specified range?

10-15 V

Go to Step 10

Go to Step 9

9

Replace the memory seat/mirror module. Refer to Memory Seat Control Module Replacement in Seats.

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

10

Connect the DMM between the left outside power mirror connector terminal B and ground.

Is the voltage within the specified range?

10-15 V

Go to Step 12

Go to Step 11

11

Repair the open in CKT 81 (WHT). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

12

Repair the open in CKT 82 (LT BLU). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

13

Replace the left outside power mirror. Refer to Power Mirror Replacement .

Did you complete the repair?

--

Go to Outside Mirrors System Check

--

14

Replace the power mirror switch. Refer to Power Mirror Switch Replacement .

Did you complete the repair?

--

Go to Outside Mirrors System Check

--