For 1990-2009 cars

## Power Mirrors Inoperative in Left/Right Direction - One Without A43

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. Use a digital multimeter (DMM) in order to backprobe across the following appropriate power mirror switch terminals:

• | Oldsmobile LH: terminal F (WHT) and terminal H (LT BLU)

• | Oldsmobile RH: terminal C (GRY) and terminal B (RED/WHT)

• | Buick LH: terminal B (LT BLU) and terminal D (WHT)

• | Buick RH: terminal B (LT BLU) and terminal G (RED/WHT)

• | Pontiac LH: terminal B (WHT) and terminal C (LT BLU)

• | Pontiac RH: terminal F (GRY) and terminal G (RED/WHT)

2. Place the mirror select switch in the position in order to operate the appropriate mirror.
3. Operate the power mirror switch LEFT.
4. Operate the power mirror switch RIGHT.

Does the voltage measure within the specified range?

10-15 V

Go to Step 3

Go to Step 4

3 |

1. Use a DMM in order to backprobe across the following appropriate outside power mirror terminals:

• | Oldsmobile LH: terminal F (WHT) and terminal H (LT BLU)

• | Oldsmobile RH: terminal F (RED/WHT) and terminal H (GRY)

• | Buick LH: terminal F (WHT) and terminal H (LT BLU)

• | Buick RH: terminal F (RED/WHT) and terminal H (LT BLU)

• | Pontiac LH: terminal F (WHT) and terminal H (LT BLU)

• | Pontiac RH: terminal F (RED/WHT) and terminal H (GRY)

2. Place the mirror select switch in the position in order to operate the appropriate mirror.
3. Operate the power mirror switch LEFT.
4. Operate the power mirror switch RIGHT.

Does the voltage measure within the specified range?

10-15 V

Go to Step 5

Go to Step 6

4 | Replace the power mirror switch. Refer to one of the following procedures:

• | Power Mirror Switch Replacement

• | Power Mirror Switch Replacement

Is the repair complete?

--

Go to Outside Mirrors System Check

--

5 | Replace the appropriate outside power mirror. Refer to Power Mirror Replacement Is the repair complete? | -- | Go to Outside Mirrors System Check | --
6 | Test the LH outside power view mirror circuits for an open:

• | CKT 81 (WHT)

• | CKT 82 (LT BLU)

Are the circuits OK?

--

Go to Step 8

Go to Step 7

7 | Repair the open in one of the following circuits:

• | CKT 81 (WHT)

• | CKT 82 (LT BLU)

Is the repair complete?

--

Go to Outside Mirrors System Check

--

8 | Repair the open in one of the RH outside power mirror circuits:

• | CKT 881 (RED/WHT). Refer to Wiring Repairs in Wiring Systems.

• | CKT 90 (GRY) (Oldsmobile). Refer to Wiring Repairs in Wiring Systems.

• | CKT 82 (LT BLU) (Buick). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Outside Mirrors System Check

--

## Power Mirrors Inoperative in Left/Right Direction - One With A43

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Memory Mirror System Check? | -- | Go to Step 2 | Go to Outside Mirrors System Check
2 |

1. Set the ignition switch to the OFF position.
2. Ground the memory seat diagnostic connector.

• | The connector may be taped up into the body harness.

• | The module beeps once in order to acknowledge entrance into the mode 1 diagnostics.

• | Refer to Memory Seat Operation in seats for a detailed explanation of the memory seat/mirror module diagnostic modes.

3. Operate the power mirror switch in all directions. (The module beeps once for each received switch input.)
4. Any time a switch is operated and the module does not beep, the module did not receive an input from that switch.

Is there any switch operations where the memory seat/mirror module beeped?

--

Go to Step 6

Go to Step 3

3 | Test the following circuits for an open:

• | CKT 81 (WHT) (left)

• | CKT 881 (RED/WHT) (right)

Is CKT 81 or CKT 881 OK?

--

Go to Step 4

Go to Step 8

4 | Test the following circuits for an open between the mirror and S506 (left) or S600 (right):

• | CKT 82 (LT BLU) (left)

• | CKT 90 (GRY) (right)

Is CKT 82 or CKT 90 OK?

--

Go to Step 5

Go to Step 8

5 | Replace the outside power mirror motor. Refer to Power Mirror Replacement . Is the repair complete? | -- | Go to Outside Mirrors System Check | --
6 | Test the following circuits for an open:

• | CKT 1512 (WHT) (left)

• | CKT 1513 (RED/WHT) (right)

Is CKT 1512 or CKT 1513 OK?

--

Go to Step 7

Go to Step 9

7 | Replace the power mirror switch. Refer to one of the following procedures:

• | Power Mirror Switch Replacement

• | Power Mirror Switch Replacement

Is the repair complete?

--

Go to Outside Mirrors System Check

--

8 | Repair the open in one of the following circuits:

• | CKT 82 (LT BLU). Refer to Wiring Repairs in Wiring Systems.

• | CKT 90 (GRY). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Outside Mirrors System Check

--

9 | Repair the open in one of the following circuits:

• | CKT 1512 (WHT). Refer to Wiring Repairs in Wiring Systems.

• | CKT 1513 (RED/WHT). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Outside Mirrors System Check

--