For 1990-2009 cars

## Power Mirrors Inoperative in Up/Down Direction - One W/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. Turn the ignition switch OFF.
2. Ground the memory seat diagnostic connector.

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

• | Ensure that the module beeps once in order to acknowledge entrance into 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.
4. Ensure that the module beeps once for each switch input that it receives because anytime a switch is operated and the module does not beep, the module did not receive an input from that switch.

--

Go to Step 6

Go to Step 3

3 | Test CKT 88 (YEL) (LH) or CKT 1498 (PPL/WHT) (RH) wiring for an open. Is CKT 88 or CKT 1498 OK? | -- | Go to Step 4 | Go to Step 8
4 | Test CKT 82 (LT BLU) (LH) or CKT 90 (GRY) (RH) wiring for an open between the mirror and S506 (LH) or S600 (RH). Is CKT 82 or CKT 90 OK? | -- | Go to Step 5 | Go to Step 9
5 | Replace the outside power mirror motor. Refer to Power Mirror Replacement . Is the repair complete? | -- | Go to Outside Mirrors System Check | --
6 | Test CKT 1517 (YEL) (LH) or CKT 1832 (BRN/WHT) (RH) wiring for an open. Is CKT 1517 or CKT 1832 OK? | -- | Go to Step 7 | Go to Step 10
7 | Replace the power mirror switch. Refer to 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 88 (YEL). Refer to Wiring Repairs in Wiring Systems.

• | CKT 1498 (PPL/WHT). 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 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

--

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

• | CKT 1517 (YEL). Refer to Wiring Repairs in Wiring Systems.

• | CKT 1832 (BRN/WHT). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Outside Mirrors System Check

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## Power Mirrors Inoperative in Up/Down Direction - One W/O 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. Backprobe across the appropriate power mirror switch terminals with a digital multimeter (DMM):

• | Oldsmobile LH: terminal G (YEL) and terminal H (LT BLU).

• | Oldsmobile RH: terminal C (GRY) and terminal A (BRN/WHT).

• | Buick LH: terminal C (YEL) and terminal E (LT GRN).

• | Buick RH: terminal C (YEL) and terminal F (PPL/WHT).

• | Pontiac LH: terminal D (YEL) and terminal C (LT BLU).

• | Pontiac RH: terminal F (GRY) and terminal E (BRN/WHT).

2. Place the mirror select switch in the position to operate the appropriate mirror.
3. Operate the power mirror switch UP.
4. Operate the power mirror switch DOWN.

Does the voltage measure within the specified range for both cases?

10-15 V

Go to Step 3

Go to Step 4

3 |

1. Backprobe across the appropriate power mirror terminals with a DMM:

• | Oldsmobile LH: terminal A (YEL) and terminal C (LT BLU).

• | Oldsmobile RH: terminal C (GRY) and terminal A (BRN/WHT).

• | Buick LH: terminal A (YEL) and terminal C (LT GRN).

• | Buick RH: terminal A (YEL) and terminal C (PPL/WHT).

• | Pontiac LH: terminal A (YEL) and terminal H (LT BLU).

• | Pontiac RH: terminal H (GRY) and terminal A (BRN/WHT).

2. Place the mirror select switch in the position to operate the appropriate mirror.
3. Operate the power mirror switch UP.
4. Operate the power mirror switch DOWN.

Does the voltage measure within the specified range for both cases?

10-15 V

Go to Step 5

Go to Step 6

4 | Replace the power mirror switch. Refer to 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 mirror circuits for an open:

• | CKT 88 (YEL)

• | CKT 82 (LT BLU) (Oldsmobile, Pontiac)

• | CKT 89 (LT GRN) (Buick)

Are the circuits OK?

--

Go to Step 8

Go to Step 7

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

• | CKT 88 (YEL). Refer to Wiring Repairs in Wiring Systems.

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

• | CKT 89 (LT GRN) (Buick). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Outside Mirrors System Check

--

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

• | CKT 1498 (BRN/WHT) (Oldsmobile, Pontiac). Refer to Wiring Repairs in Wiring Systems.

• | CKT 88 (YEL) (Buick). Refer to Wiring Repairs in Wiring Systems.

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

• | CKT 889 (PPL/WHT) (Buick). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Outside Mirrors System Check

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