Circuit/System Testing

Center the balance and fade adjustment on the radio.
- If adjustment of the fade and balance eliminates the concern, review the operation of the radio with the customer.
Verify that the wireless headphones are set to the proper channel and are working properly.
- If the wireless headphones are not operating properly, go to Video Entertainment System Wireless Headphone Inoperative .
Disconnect the C2 connector of the rear HVAC control module. Connect a DMM between the suspect speaker output circuits (input to the RSA) from the radio. Turn ON the radio and verify there is AC voltage present.
- If AC voltage is not present, go to Speakers Inoperative - One or More .
Test or repair open, short to ground or short to voltage on the RSA ground circuit and battery positive voltage circuit.
- If all circuits test normal, replace the rear HVAC control module.