CD Player Faults - Diagnosis

Models See below
Section Electrical System
Classification EL93-005
Bulletin No. ITB93-032
Date May 18, 1993

DIAGNOSIS OF CD PLAYER FAULTS: THE AMBIENT TEMPERATURE FACTOR

APPLIED MODELS:
All OEM-Equipped with CD Players or Autochangers

SERVICE INFORMATION:

If a customer comments about improper CD Player operation, the Service Consultant should obtain additional infonmation from the customer, prior to writing a "Work Order." Specif-ically, the Service Consultant should inquire, "does the incident occur during the first few minutes of vehicle operation?" and "what was the ambient temperature when the incident occurred?"

In colder ambient temperatures, condensation could accumulate on the Optic Scanning Head that "reads" the compact discs. The situation may become worse if die CD's or the CD Magazines are stored in warmer temperatures and inserted into a cold CD Player. If condensation is present, this factor may inhibit the CD Player's ability to read the data on the Compact Disc. As a result, the CD Player may display an error code and/or the disc may be ejected. These symptoms do not necessarily indicate a problem with the CD Player.

The following suggestions should help resolve related incidents:

^ For Dash-mounted CD Players, condensation can be eliminated by operating the radio unit for five to seven minutes. The CD section should operate properly after warm-up. If not, review appropriate Service Literature for further diagnostic guidance.

^ For CD Magazines, as utilized in Autochangers [up to 10 Compact Discs in trunk], the warm-up period depends upon the trunk room interior temperature.