Schematic Reference: Radio/Audio System Schematics

Did you perform the Entertainment System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Entertainment System

1. Turn ON the ignition, with the engine OFF.
2. Turn ON the radio.
3. Turn ON the rear seat audio system.
4. Connect headphones.

Does the rear seat audio operate normally?

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

Go to Step 3

Inspect for poor connections at the harness connector of the auxiliary HVAC control 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 5

Go to Step 4

Replace the auxiliary HVAC control module. Refer to Auxiliary Heater and Air Conditioning Control Module Replacement

Did you complete the replacement?

Go to Step 5

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Operate the system in order to verify the repair.

Did you correct the conditon?

System OK

Go to Step 2