For 1990-2009 cars

## Power Mirrors Inoperative With 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. Disconnect the outside mirror switch connector.
2. Connect a digital multimeter (DMM) between the outside mirror switch connector terminal A and ground.

Does the voltage measure within the specified range?

10-15 V

Go to Step 3

Go to Step 4

3 | Connect a DMM between the outside mirror switch connector terminal A and terminal J. Does the voltage measure within the specified range? | 10-15 V | Go to Step 5 | Go to Step 6
4 | Repair the open or short to ground in CKT 40 (ORN). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Outside Mirrors System Check | --
5 | Replace the outside mirror switch. Refer to Power Mirror Switch Replacement . Did you complete the repair? | -- | Go to Outside Mirrors System Check | --
6 | Repair the open in CKT 150 (BLK). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Outside Mirrors System Check | --

## Power Mirrors Inoperative 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 | Use a digital multimeter (DMM) in order to backprobe between one of the following components and ground:

• | Outside mirror switch terminal 8 (ORN) (Oldsmobile)

• | Outside mirror switch connector terminal A (ORN) (Buick)

Does the voltage measure within the specified range?

10-15 V

Go to Step 3

Go to Step 12

3 | Use the DMM in order to backprobe between one of the following components:

• | Outside mirror switch terminals 8 (ORN) and 9 (BLK) (Oldsmobile).

• | Outside mirror switch connector terminals A (ORN) and J (BLK) (Buick)

Does the voltage measure within the specified range?

10-15 V

Go to Step 4

Go to Step 13

4 | Disconnect the memory seat/mirror module connector C2. Connect a DMM between the memory seat/mirror module connector C2 terminal A and ground. Does the voltage measure within the specified range? | 10-15 V | Go to Step 6 | Go to Step 5
5 | Repair the open or short to ground in CKT 1340 (ORN). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Outside Mirrors System Check | --
6 |

1. Disconnect the memory seat/mirror module connector C1.
2. Turn the ignition switch to the ON position.
3. Connect a DMM between the memory seat/mirror module connector C1 terminal C12 and ground.

Does the voltage measure 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 39 (PNK). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Outside Mirrors System Check | --
8 | Connect a DMM between the memory seat/mirror module connector C2 terminal B and B+. Does the voltage measure within the specified range? | 10-15 V | Go to Step 10 | Go to Step 9
9 | Repair the open in CKT 150 (BLK). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Outside Mirrors System Check | --
10 |

1. Set the mirror select switch to the left outside rear view mirror.
2. Use a DMM in order to backprobe the following CKTs:

• | Outside mirror switch terminal 7 (YEL) and ground (Oldsmobile).

• | Outside mirror switch terminal 5 (YEL) and ground (Buick).

3. Move the outside mirror switch to the mirror up position.

Does the voltage measure within the specified range?

10-15 V

Go to Step 11

Go to Step 14

11 | 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 | --
12 | Repair the open in CKT 40 (ORN). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Outside Mirrors System Check | --
13 | Repair the open in CKT 150 (BLK). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Outside Mirrors System Check | --
14 | Replace the outside mirror switch. Refer to Power Mirror Switch Replacement . Did you complete the repair? | -- | Go to Outside Mirrors System Check | --