Schematic Reference: Driver Seat Schematics , Passenger Seat Schematics

Connector End View Reference: Power Seat Connector End Views

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

Operate the heated seat system.

Does the system operate normally?

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

Go to Step 3

1. Install a scan tool.
2. Display the Heated Seat Status parameter in the driver seat module (DSM) Input/Output data list.
3. Start the engine.

Does the scan tool display the Heated Seat Status parameter as Off?

Go to Step 6

Go to Step 4

Display the Heated Seat Mode parameter in the door module Inputs data list.

Does the scan tool display the Heated Seat Mode parameter as Off?

Go to Step 6

Go to Step 5

1. Turn OFF the ignition.
2. Disconnect the heated seat switch connector to the door module.
3. Start the engine.

Does the scan tool display the Heated Seat Mode parameter as Off?

Go to Step 7

Go to Step 8

Replace the DSM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Is the repair complete?

Go to Step 9

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Replace the heated seat switch. Refer to Front Seat Heater Switch Replacement .

Is the repair complete?

Go to Step 9

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Replace the door module. Refer to Door Lock and Side Window Switch Replacement - Driver Side or Door Lock and Side Window Switch Replacement - Passenger Side in Doors.

Is the repair complete?

Go to Step 9

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3