Schematic Reference

Radio/Navigation System Schematics

Connector End View Reference

Entertainment/Communication Connector End Views

Electrical Information Reference

Scan Tool Reference

Scan Tool Data List

Important: Test or replace the remote batteries before performing the circuit/system test.

1. Verify the system works with a known good remote

⇒	If the known good remote operates properly, replace the suspect remote.

2. Operate the radio and turn on the rear seat audio (RSA). Verify the remote headphones operate normally.

⇒	If the remote headphones do not operate properly, go to Video Entertainment System Wireless Headphone Inoperative .

3. Install a scan tool, monitor the button presses in the radio data display. Verify the radio responds to the remote when the buttons are pressed.

⇒	If the radio does not respond, test the remote infra-red signal circuits for an open, short to ground or short to B+. If the infra-red signal circuits test normal replace audio system transceiver module.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.