GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Review the power seat operation and perform the necessary inspections.

Did you complete the system review and inspection?

--

Go to Step 2

Go to Symptoms

2

Attempt to operate the power seats vertically.

Does the system operate normally?

--

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Disconnect power seat switch connector from the power seat switch.
  2. Connect one end of a J 36169-A fused jumper to B+ and the other end to the power seat switch connector pin A for CKT 283 (LT BLU).
  3. Connect a second J 36169-A fused jumper wire from power seat switch connector pin C for CKT 150 (BLK) to a known good ground.
  4. Move the first jumper wire to pin B for CKT 282 (YEL).

Does the rear tilt motor move up or down when activated with the jumper wires?

--

Go to Step 4

Go to Step 5

4

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

Did you complete the repair?

--

Go to Step 10

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5

  1. Connect a J 39200 digital multimeter between the power seat switch connector pin A for CKT 283 (LT BLU) and pin B for CKT 282 (YEL).
  2. Test for continuity. Refer to Circuit Testing in Wiring Systems.

Is continuity present?

--

Go to Step 6

Go to Step 7

6

Replace the power seat motor. Refer to Front Seat Adjuster Motor Replacement .

Did you complete the repair?

--

Go to Step 10

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7

  1. Connect a J 39200 digital multimeter between the power seat motor connector cavity B for CKT 283 (BLK) and cavity A for CKT 282 (RED).
  2. Test for continuity. Refer to Circuit Testing in Wiring Systems.

Is continuity present?

--

Go to Step 8

Go to Step 9

8

Repair the open in CKT 283 (LT BLU) or CKT 282 (YEL) between the power seat switch connector and the power seat motor connector. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Step 10

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9

Replace the power seat motor(s). Refer to Front Seat Adjuster Motor Replacement .

Is the repair complete?

--

Go to Step 10

--

10

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 3