For 1990-2009 cars

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. Disconnect the park/neutral position (PNP) switch connector C1.
2. Connect a fused jumper between the PNP switch connector C1 terminal D (PNK) (Oldsmobile) or B (PNK) (Buick) and terminal F (LT GRN).
3. Turn ON the ignition.

Does the right outside power mirror move down?

--

Go to Step 5

Go to Step 3

3 |

1. Remove the fused jumper.
2. Disconnect the memory seat/mirror module connector C1.
3. Use a J 39200 digital multimeter (DMM) in order to measure the resistance between the PNP switch connector C1 terminal F (LT GRY) and the memory seat/mirror module connector C1 terminal D13 (LT GRN).

Is the resistance within the specified range?

0-5 ohms

Go to Step 4

Go to Step 6

4 | Replace the memory seat/mirror module. Refer to Memory Seat Control Module Replacement in Seats. Is the repair complete? | -- | Go to Outside Mirrors System Check | --
5 | Replace the PNP switch. Refer to Park/Neutral Position Switch Replacement in Automatic Transaxle -- 4T65-E or PNP Switch Replacement in Automatic Transaxle -- 4T80-E. Is the repair complete? | -- | Go to Outside Mirrors System Check | --
6 | Repair the open in CKT 24 (LT GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Outside Mirrors System Check | --