GM Service Manual Online
For 1990-2009 cars only

Diagnostic Instructions

    â€¢ Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    â€¢ Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    â€¢  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Reference Information

Description and Operation

Radio/Audio System Description and Operation

Special Tools

J 39916-A CD and Cassette Diagnostic Audio Kit

Circuit/System Verification

  1. Radio ON, With the J 39916-A clean the cassette player.
  2. Reset the display by pushing and holding the eject button for 5 seconds. Verify radio does not display CLN or CLEAN.
  3. ⇒If radio does display CLN or CLEAN, replace the radio.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for Radio replacement, setup, and programming