Vin Message Not Received - Dodge Ram 2004 Service Manual

Symptom:

VIN MESSAGE NOT RECEIVED

When Monitored and Set Condition:
VIN MESSAGE NOT RECEIVED
When Monitored: With the ignition on.
Set Condition: The Hands Free Module does not receive the VIN message from the PCM.
ATTEMPT TO COMMUNICATE WITH THE PCM
CHECK PCM IS ACTIVE ON BUS
MODULE
TEST
1 Turn the ignition on.
With the DRBIII , attempt to communicate with the PCM.
Was the DRBIII able to I/D or communicate with the PCM?
Yes → Go To 2
→ Refer to the Communication category for the related symptom(s).
No
2 Turn the ignition on.
With the DRBIII , select System Monitors then J1850 Module Scan.
Is the PCM one of the modules present on the bus?
Yes → Go To 3
→ Refer to the Communication category for the related symptom(s).
No
3 With the DRBIII , erase DTC's.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRBIII , read DTC's.
Did this DTC reset?
Yes → Replace the Hands Free Module in accordance with the service
→ Test Complete.
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
information.
Perform BODY VERIFICATION TEST - VER 1.
TELECOMMUNICATION
519
APPLICABILITY
All
All
All