Schematic Reference: Driver Seat Schematics or Passenger Seat Schematics

Connector End View Reference: Power Seat Connector End Views

DEFINITION: The heated seat switch mode indicator is inoperative, but the heated seat system operates OK.

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

Verify that the Heated Seat Switch Indicator Malfunction - Rear is present.

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

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

Go to Step 3

Turn ON the ignition, with the engine OFF.

Is the heated seat switch indicator always on?

Go to Step 6

Go to Step 4

1. Turn OFF the ignition.
2. Disconnect the rear heated seat switch connector.
3. Turn ON the ignition, with the engine OFF.
4. Connect a 3-amp fused jumper wire from battery voltage to the battery voltage terminal of the rear heated seat switch.
5. Probe the appropriate indicator terminal of the heated seat switch with a test lamp that is connected to a good ground.

Does the inoperative heated seat switch indicator illuminate?

Go to Step 5

Go to Step 8

Test the control circuit of the inoperative heated seat switch indicator between the rear heated seat switch and the rear heated seat module for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 11

Go to Step 7

Test the control circuit of the inoperative heated seat switch indicator between the rear heated seat switch and the rear heated seat module for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 11

Go to Step 8

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 in Wiring Systems.

Did you find and correct the condition?

Go to Step 11

Go to Step 9

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

Did you find and correct the condition?

Go to Step 11

Go to Step 10

Replace the rear heated seat module. Refer to Control Module References in Computer/Integrating Systems.

Did you complete the replacement?

Go to Step 11

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Replace the rear heated seat switch. Refer to Auxiliary Heater and Air Conditioning Control Replacement in HVAC Systems - Automatic.

Did you complete the replacement?

Go to Step 11

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2