Radio Audio Inoperative at Rear Seat Audio (RSA) Control

RADIO AUDIO INOPERATIVE AT REAR SEAT AUDIO (RSA) CONTROL

DIAGNOSTIC FAULT INFORMATION
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview

CIRCUIT/SYSTEM TESTING
1. 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.
2. 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.
3. 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.
4. 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.

REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

Auxiliary Heater and Air Conditioning Control Module Replacement