GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Mirror System Check?

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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?

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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

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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

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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

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