Diagnostic Test

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

1) RADIO

Fig 1: Scan Tool - Starscan
Courtesy of DAIMLERCHRYSLER CORP.

Replace the problem CD with a good, clean, unscratched, music CD.

Turn the radio CD player on.

With the Scan Tool, read DTC's.

Does the Scan Tool display: B1421 Audio CD Read Error/Inoperable Disc?

Yes
1. Eject the inoperative CD and replace the CD in accordance with the service information.
2. Perform BODY VERIFICATION TEST - VER 1 .
No
1. Test Complete.