GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Rear Seat Schematics

Connector End View Reference: Power Seat Connector End Views

1

Did you review the heated seat operation and perform the necessary inspection?

Go to Step 2

Go to Symptoms - Seats

2

Verify that the Heated Seat Always On - Rear complaint is present.

Does the heated seat system operate as described in the system description and operation?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Disconnect the rear heated seat switch harness connector.

Does the seat cool down?

Go to Step 6

Go to Step 4

4

Test the appropriate rear heated seat switch signal circuit between the heated seat switch and the rear heated seat module for a short to voltage. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 5

5

Inspect for poor connections at the harness connector of the rear heated seat module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 7

6

Inspect for poor connections at the harness connector of the rear heated seat module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 8

7

Replace the rear heated seat module. Refer to Control Module References for replacement, setup, and programming.

Did you complete replacement?

Go to Step 9

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8

Replace the rear heated seat switch. Refer to Auxiliary Heater and Air Conditioning Control Replacement for replacement, setup, and programming.

Have you finished the replacement?

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