Did you perform the HVAC Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With a scan tool observe the Steering Wheel Controls parameter in the Dash Integration Module (DIM) data list.
4. Press each radio and temp switch in both directions.

Do the counts change for any switch pressed?

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Go to Step 3

Go to Step 5

1. With a scan tool observe the Steering Wheel Controls parameter in the Dash Integration Module (DIM) data list.
2. Press each radio and temp switch in both directions.

Do the counts change for all switches pressed?

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Go to Step 4

Go to Step 9

1. Turn ON the radio.
2. Press each radio switch.

Do the radio steering wheel controls function?

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Go to Step 10

Go to Step 11

Caution: When you are performing service on or near the SIR components or the SIR wiring, you must disable the SIR system. Refer to Disabling the SIR System. Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.

1. Turn OFF the ignition.
2. Remove and disconnect the RH side steering wheel controls.
3. Turn ON the ignition, with the engine OFF.
4. Connect a 3 amp fused jumper wire between the SWC feed circuit and the SWC return circuit of the RH side steering wheel controls.

Do the counts change?

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Go to Step 9

Go to Step 6

Measure the voltage from the SWC feed circuit of the RH side steering wheel controls to a good ground.

Does the voltage measure near the specified value?

12 V

Go to Step 7

Go to Step 8

Test the SWC return circuit of the RH steering wheel controls for an open. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 15

Go to Step 11

Test the SWC feed circuit of the RH steering wheel controls for an open, or a short to ground. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 15

Go to Step 11

Inspect for poor connections at the harness connector of the RH side steering wheel controls. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 15

Go to Step 12

Inspect for poor connections at the harness connector of the Instrument Panel Module (IPM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 15

Go to Step 13

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

Did you find and correct the condition?

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Go to Step 15

Go to Step 14

Replace the RH side steering wheel controls. Refer to Steering Wheel Control Switch Assembly Replacement in Steering Wheel and Column - Tilt.

Did you complete the repair?

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Go to Step 15

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Replace the IPM. Refer to Instrument Panel Module Replacement in Body Control System.

Did you complete the repair?

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Go to Step 15

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Replace the DIM. Refer to Body Control Module (BCM) Programming/RPO Configuration and Dash Integration Module Replacement in Body Control System.

Did you complete the repair?

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Go to Step 15

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2