CD Changer: Testing and Inspection

1. The CD changer receives its power and ground through the radio via the DIN connector. Verify that the radio powers up and functions before proceeding.
2. With the radio turned ON, check the radio display when pushing the MODE/EJECT button to select the CD mode. Refer to Radio Display Error Messages table.
a. If the displays shows - - - -, then insert a CD magazine in the changer.
b. If the displays shows nocd, then insert a CD into the magazine.
c. If the displays shows Err xxxx, then check the error message table below.
d. If the radio only switches between AM and FM turning modes, then perform the following:
I. Check the connection of the DIN cable to the CD changer and radio. Check the DIN cable disconnect located at the right side of cowl attached to main harness.
II. If OK, then check DIN cable at the CD changer side.

Radio Display Error Messages:

Fig. 4 DIN Cable Connector:

Din Cable Connector Pin Call Out:

III. Make sure the DIN cable is connected to the radio and radio is turned ON and operating. Check for battery voltage at Pins 6 and 7 using Pin 8 for ground. Refer to DIN Cable Connector Pin Call-Out table and.
IV. If OK, then replace CD changer.
V. If not OK, then remove DIN cable from radio and changer. Check DIN cable for continuity from connector to connector, using an ohmmeter on each pin.
VI. If the DIN cable OK, then replace the radio.