Dodge Ram 2004 - Left Doors Fail to Lock and Unlock - Quad Cab

Symptom:
*LEFT DOORS FAIL TO LOCK AND UNLOCK - QUAD CAB
POSSIBLE CAUSES
DTC PRESENT
INSTRUMENT CLUSTER - DOOR LOCK DRIVER LEFT DOORS OPEN
DOOR UNLOCK DRIVER LEFT DOORS WIRE OPEN
DOOR LOCK DRIVER LEFT DOORS WIRE OPEN
DOOR LOCK MOTOR
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, read DTC’s.
Does the DRBIIIt display any Door Lock related DTC’s?
All
Yes → Refer to symptom list for problems related to Power Door Locks.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 2
2 Turn the ignition off.
Disconnect the Instrument Cluster C1 connector.
Connect a jumper wire between the Door Unlock Driver Left Doors circuit in the
Instrument Cluster C1 connector and ground.
Momentarily connect a fused jumper wire between the Fused B+ circuit and the Door
Lock Driver Left Doors circuit in the Instrument Cluster C1 connector.
Reverse the jumper wires to drive the motors in the opposite direction.
Did the left doors lock and unlock?
All
Yes → Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 3
3 Turn the ignition off.
Disconnect the Instrument Cluster C1 connector.
Disconnect a left side Door Lock Motor/Ajar Switch connector.
Measure the resistance of the Door Lock Driver Left Doors circuit between the
Instrument Cluster C1 connector and the Door Lock Motor connector.
Is the resistance below 5.0 ohms?
All
Yes → Go To 4
No → Repair the Door Lock Driver Left Doors wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
4 Turn the ignition off.
Disconnect the Instrument Cluster C1 connector.
Disconnect a left side Door Lock Motor/Ajar Switch connector.
Measure the resistance of the Door Unlock Driver Left Doors circuit between the
Instrument Cluster C1 connector and the Door Lock Motor connector.
Is the resistance below 5.0 ohms?
All
Yes → Go To 5
No → Repair the Door Unlock Driver Left Doors wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
488
POWER DOOR LOCKS/RKE