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For 1990-2009 cars only

SMU - Revised Audio System Diagnostics

Subject:Revised Audio System Diagnostics

Models:1998-2000 Chevrolet Camaro
1998-2000 Pontiac Firebird



This bulletin is being issued to revise several audio system diagnostics in the Entertainment sub-section of the Service Manual. Please replace the current information in the Service Manual with the following information.

The following information has been updated within SI. If you are using a paper version of this Service Manual, please make a reference to this bulletin on the affected page.

Diagnostic Title

Step Effected

What Changed

Speakers Inoperative - One or More (No Sound, Radio Operates Normally)

SI Document IDs #472778 and #415323

3

The following information was added to this step:

Verify power and ground circuit voltages are present at the amplifier by measuring between the appropriate terminals on the amplifier connector.

Speakers Inoperative - One or More (General)

SI Document IDs #446931 and #327342

Speakers Inoperative - One or More (No Sound, Radio Operates Normally)

SI Document ID #563214

4

Speakers Inoperative - One or More (General W53, W54, W55, UQ0)

SI Document ID #563211