Grand Cherokee 2WD V8-4.7L VIN N (2000)
CD Changer: Description and Operation
A factory-installed Compact Disc (CD) changer featuring a ten-CD magazine is an available option on this model when it is also equipped with the
premium speaker package and a radio receiver including the CD controls feature. The CD changer is mounted in the cargo area of the passenger
compartment on the right rear quarter panel. It is concealed behind a molded plastic bin with an integral hinged and latching lid that matches the interior
trim of the vehicle.
The CD changer is connected to a take out from the right body wire harness and receives both ground and radio-switched battery current through the
radio receiver. The controls on the radio receiver operate the CD changer through messages sent over the Programmable Communications Interface
(PCI) data bus network. The two-channel audio outputs of the CD changer are hard wired back to the radio receiver, which then outputs the signal
through four channels to the power amplifier. For diagnosis of the messaging functions of the radio receiver and the CD changer, or of the PCI data bus,
a DRB scan tool and the proper Diagnostic Procedures are required.The CD changer has Diagnostic Trouble Codes (DTCs) that are separate from the
radio or "in dash" CD player. These codes are found using the DRBIII (R) and accessing DTCs under audio systems. They are all due to improper use or
internal failure of the CD changer. If any of these codes exist, check the changer for obvious problems such as wrong type of CD, upside down CD,
scratched or dirty CD, foreign objects inserted into changer etc... Correct the problem. Clear DTCs. Then check to see if the DTC(s) return. If they do,
replace the changer.
The CD changer can only be serviced by an authorized radio repair station. See the latest Warranty Policies and Procedures for a current listing of
authorized radio repair stations.
The CD changer will only operate when the ignition switch is in the On or Accessory positions, and the radio is turned on. For more information on the
features, loading procedures and radio control functions for the operation of the CD changer, see the owner's manual in the vehicle glove box.
