Pci Bus Communication Failure - Chrysler Concorde 2004 Service Manual

COMMUNICATION
Symptom:

*PCI BUS COMMUNICATION FAILURE

WIRING HARNESS INTERMITTENT
OPEN PCI BUS CIRCUIT AT THE DATA LINK CONNECTOR (DLC)
HIGH VOLTAGE ON THE PCI BUS CIRCUITS AT THE BCM CONNECTORS
MODULE (PCI BUS SHORT TO VOLTAGE)
PCI BUS CIRCUIT SHORTED TO VOLTAGE
LOW RESISTANCE TO GROUND ON THE PCI BUS CIRCUITS AT THE BCM CONNECTORS
MODULE (PCI BUS SHORT TO GROUND)
PCI BUS CIRCUIT SHORTED TO GROUND
TEST
1 Note: Determine which modules this vehicle is equipped with before begin-
ning.
Note: When attempting to communicate with any of the modules on this
vehicle, the DRB will display 1 of 2 different communication errors: a NO
RESPONSE message or a BUS +/- SIGNALS OPEN message.
Turn the ignition on.
Using the DRB, attempt to communicate with the following control modules:
Body Control Module (BCM)
Instrument Cluster (MIC)
Controller Antilock Brake (CAB)
Was the DRB able to communicate with one or more Module(s)?
Yes → Go To 2
→ Go To 3
No
2 Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Note: If the DRB can not communicate with a single module, refer to the
category list for the related symptom.
Were any problems found?
Yes → Repair wiring harness/connectors as necessary.
→ Test Complete.
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
176
APPLICABILITY
All
All