GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

SCHEMATIC REFERENCE: Heated Seats Schematics

1

Did you perform the Diagnostic System Check - Power Seat Systems?

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Go to Step 2

Go to Diagnostic System Check - Power Seat Systems

2

Test the heater control circuits between the heated seat module and the seat heating elements for a short to voltage.

Did you find and correct the condition?

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Go to Step 5

Go to Step 3

3

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

Did you find and correct the condition?

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Go to Step 5

Go to Step 4

4

Replace the heated seat module. Refer to Front Seat Heater Control Module Replacement or Rear Seat Heater Control Module Replacement .

Did you complete the replacement?

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Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2