Dodge Ram 2004, Service Manual

Page: 496 / 642

Symptom:
RKE MODULE COMMUNICATION LINK
When Monitored and Set Condition:
RKE MODULE COMMUNICATION LINK
When Monitored: Whenever battery power is applied the Instrument Cluster.
Set Condition: The Instrument Cluster has learned that the vehicle is equipped with
Remote Keyless Entry, but then is unable to communicate with that module, this code will
set. The Instrument Cluster provides power for the RKE module and communicates by the
PCI bus.
POSSIBLE CAUSES
DTC PRESENT
INSTRUMENT CLUSTER - OPEN LINK
RKE MODULE OPEN
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIII
t
, record and erase DTC’s.
With the DRBIII
t
, read DTC’s.
Operate the door locks several times from the RKE transmitter while observing the
DRBIII
t
.
Does the DRBIII
t
display RKE MODULE COMM LINK?
All
Yes
→
Go To 2
No
→
Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Remove the Instrument Cluster.
Replace the RKE module with a known good module.
With the DRBIII
t
, Program the RKE transmitter.
Operate the door locks using the RKE transmitter.
Do the door locks respond correctly with the RKE transmitter?
All
Yes
→
Replace the original RKE module.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
482
POWER DOOR LOCKS/RKE