GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Power Seats Schematics

1

Did you perform the Power Seat Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Power Seat Systems

2

Operate the power seat system from the power seat switch.

Does the system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Disconnect the inoperative power seat switch.
  2. Connect a test lamp between battery positive voltage circuit of the power seat switch and a good ground.

Does the test lamp illuminate?

Go to Step 4

Go to Step 6

4

Connect a test lamp between the ground circuit of the inoperative power seat switch and battery positive voltage.

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

5

Inspect for poor connections at the harness connector of the power seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 9

Go to Step 8

6

Repair the open or short to ground in the battery positive voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 9

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7

Repair the open in the power seat switch ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 9

--

8

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

Did you complete the repair?

Go to Step 9

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9

Operate the system to verify the repair.

Did you correct the condition?

System OK

Go to Step 2