Schematic Reference: Driver Seat Schematics or Passenger Seat Schematics

Connector End View Reference: Power Seat Connector End Views or Master Electrical Component List

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

Verify that the Heated Seat Always On 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

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With a scan tool, observe the appropriate Heated Seat Switch parameter in the HVAC control module data list.

Does the Heated Seat Switch parameter display Pressed?

Go to Step 6

Go to Step 4

1. Disconnect the heated seat relay connector.
2. Connect a test lamp from the heated seat element supply voltage circuit to ground.

Does the test lamp illuminate?

Go to Step 7

Go to Step 5

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

Did you find and correct the condition?

Go to Step 10

Go to Step 8

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

Did you find and correct the condition?

Go to Step 10

Go to Step 9

Repair the short to battery positive voltage in the heated seat element supply voltage circuit of the seat heating elements. Refer to Wiring Repairs.

Did you complete the repair?

Go to Step 10

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Replace the heated seat relay. Refer to Relay Replacement.

Did you complete replacement?

Go to Step 10

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Replace the HVAC control module. Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 10

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Operate the system in order to verify the repair

Did you correct the condition?

System OK

Go to Step 2