Schematic Reference: Heated/Cooled Seat Schematics

Connector End View Reference: Heated/Cooled Seat Component 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

Verify that the Heated Seat Switch Mode Indicator Malfunction is present.

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

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

Turn ON the ignition, with the engine OFF.

Is the heated seat switch mode indicator always on?

Go to Step 7

Go to Step 4

4

1. Turn OFF the ignition.
2. Disconnect the heated seat module connector C1.
3. Turn ON the ignition, with the engine OFF.
4. Connect a 3-amp fused jumper wire from the heated seat control module status signal circuit of the heated seat module connector to a good ground.
5. Press the appropriate heated seat switch.

Does the heated seat mode indicator illuminate?

Go to Step 8

Go to Step 5

1. Install a scan tool.
2. With a scan tool, observe the Heated Seat Status parameter in the Rear Integration Module data list.
3. Connect a 3-amp fused jumper wire from the heated seat control module status signal circuit of the heated seat module connector to a good ground.

Does the Heated Seat Status parameter display ON?

Go to Step 9

Go to Step 6

Test the heated seat control module status signal circuit between the rear integration module (RIM) and the heated seat module for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 14

Go to Step 10

Test the heated seat control module status signal circuit between the RIM and the heated seat module for a short to ground. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 14

Go to Step 9

Inspect the for poor connections at the harness connector of the 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 14

Go to Step 11

Inspect the 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 14

Go to Step 12

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

Did you find and correct the condition?

Go to Step 14

Go to Step 13

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

Did you complete the replacement?

Go to Step 14

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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 14

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Replace the RIM. Refer to Control Module References for replacement, setup and programming.

Did you complete the replacement?

Go to Step 14

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2