*NO RESPONSE FROM CD CHANGER

For a complete wiring diagram Refer to Section 8W.

Possible Causes

(Z515) GROUND CIRCUIT OPEN

(X160) FUSED B(+) CIRCUIT OPEN

(X112) IGNITION RUN/ACC SIGNAL CIRCUIT OPEN

(D25) PCI BUS CIRCUIT OPEN

RADIO

CD CHANGER

Diagnostic Test

1.ESTABLISH COMMUNICATION WITH RADIO ON PCI BUS

NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.

NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.

Does the scan tool communicate with the radio?

Yes

Go To2

Perform the appropriate no response test. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING)

2.(Z515) GROUND CIRCUIT OPEN

Does the test light illuminate brightly?

Yes

Go To 3

Repair the (Z515) Ground circuit for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

3.(X160) FUSED B(+) CIRCUIT OPEN

Does the test light illuminate brightly?

Yes

Go To 4

Repair the (X160) Fused B(+) circuit for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

4.(X112) IGNITION RUN/ACC SIGNAL CIRCUIT OPEN

Does the test light illuminate brightly?

Yes

Go To 5

Repair the (X112) Ignition Run/Acc Signal circuit for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

5.(D25) PCI BUS CIRCUIT OPEN

Is the resistance below 5.0 ohms?

Yes

Replace the CD Changer in accordance with the service information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

Repair the (D25) PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).