Compact Disc Inoperative

Compact Disc Inoperative

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview)provides an overview of each diagnostic category.



Diagnostic Fault Information






Circuit/System Description

The CD changer is supplied with battery voltage from the RADIO, S-BAND/VCIS fuse located in the body control module (BCM). The radio provides the CD changer with right and left low level audio signal circuits (+) and (-). The audio signal circuits are DC bias voltage circuits that are one half of the battery voltage. When using a DMM, each of the audio signal circuits will measure approximately 6.5V DC. Ground for the CD changer id provided at G104.


Reference Information
Schematic Reference

Radio/Navigation System Schematics (Radio/Navigation System Schematics)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Radio/Audio System Description and Operation (Radio/Audio System Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning)for scan tool information


Vircuit/System Verification

Radio ON, verify the CD changer operates properly and audio can be heard from the speakers.

If the CD changer operates properly and audio is inoperative or distorted from one or all of the speakers, refer to Speaker Malfunction (Speaker Malfunction) .



Circuit/System Testing

1. Ignition OFF, disconnect the X1 harness connector at the CD changer.
2. Test for less than 10 ohms between the ground circuit terminal 1 and ground.

• If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 16 and ground.

• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.

4. If all circuits test normal, replace the CD changer.



Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.


Remote CD Changer Replacement (Removal and Replacement)