GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Power Seats System Check performed?

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Go to Step 4

Go to Power Seats System Check

2

  1. Disconnect C1  at the left/right power seat switch.
  2. Connect an unpowered test lamp between the left/right power switch C1 pin A for CKT 540 (ORN) and ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 3

3

Repair the open in CKT 540 (ORN) between splice S221 and the left/right power seat switch connector C1. Refer to SIR/SRS Wiring Repairs .

Is the power seat still inoperative?

--

Go to Step 4

Go to Power Seats System Check

4

Connect a J 39200 between the left/right power seat connector C1 pin B for CKT 150 (BLK) and ground.

Is continuity present?

--

Go to Step 5

Go to Step 6

5

Replace the left/right power seat switch. Refer to Power Seat Switch Replacement .

Is the power seat still inoperative?

--

--

Go to Power Seats System Check

6

Repair the open in CKT  150 (BLK) between the left/right power seat switch an ground G201/G402. Refer to SIR/SRS Wiring Repairs .

Is the power seat still inoperative?

--

--

Go to Power Seats System Check