GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Power Seats Schematics

1

Did you review the Power Seats System Description and Operation?

Go to Step 2

Go to Power Seats System Description and Operation

2

Operate the Power Seat System from the Seat Switch.

Does the system operate normally?

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

Go to Step 3

3

Is the memory seat also inoperative?

Go to Memory Seat Feature Inoperative

Go to Step 4

4

  1. Disconnect the inoperative power seat switch. Refer to Power Seat Switch Replacement .
  2. Connect a test lamp between battery positive voltage supply circuit at the power seat switch connector and a good ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 6

5

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

Does the test lamp illuminate?

Go to Step 8

Go to Step 7

6

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

Did you find and correct the condition?

Go to Step 10

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7

Repair the open in the ground circuit. Refer to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

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8

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

Did you find and correct the condition?

Go to Step 10

Go to Step 9

9

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

Did you find and correct the condition?

Go to Step 10

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10

Operate the system to verify the repair.

Did you correct the condition?

System OK

Go to Step 3