No Response From Radio - Chrysler Town and Country 2003 Owner's Manual

COMMUNICATION
Symptom:

*NO RESPONSE FROM RADIO

NO RESPONSE FROM RADIO
OPEN FUSED ACCESSORY RELAY OUTPUT CIRCUIT
OPEN FUSED B+ CIRCUIT
GROUND CIRCUIT OPEN
OPEN PCI BUS CIRCUIT
RADIO
TEST
1 Turn the ignition on.
Note: As soon as one or more module communicates with the DRB, answer
the question.
With the DRB, attempt to communicate with the Airbag Control Module (ACM).
With the DRB, attempt to communicate with the Body Control Module (BCM).
Was the DRB able to I/D or establish communications with either of the modules?
Yes → Go To 2
→ Refer to the Communications category and perform the symptom
No
2 Turn the ignition off.
Disconnect the Radio C1 harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused Accessory Relay
Output circuit.
Is the test light illuminated?
Yes → Go To 3
→ Check fuse #5 in the IPM for an open. If ok, repair the Fused
No
3 Turn the ignition off.
Disconnect the Radio C1 harness connector.
Using a 12-volt test light connected to ground, probe both Fused B+ circuits.
Is the test light illuminated for each circuit?
Yes → Go To 4
→ Check fuse #14 in the IPM for an open. If ok, repair the Fused B+
No
POSSIBLE CAUSES
ACTION
PCI Bus Communication Failure.
Perform BODY VERIFICATION TEST - VER 1.
Accessory Relay Output circuit for an open or short. Refer to the
wiring diagrams located in the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
circuit for an open or short. Refer to the wiring diagrams located
in the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
402
APPLICABILITY
All
All
All