Dodge Ram 2004 - Door Ajar; Driver Door Ajar Circuit Open

Symptom:
*DRIVER DOOR AJAR CIRCUIT OPEN
POSSIBLE CAUSES
DRIVER DOOR AJAR SWITCH
DRIVER DOOR AJAR SWITCH GROUND CIRCUIT OPEN
DRIVER DOOR AJAR SWITCH SENSE CIRCUIT OPEN
INSTRUMENT CLUSTER -DRIVER DOOR AJAR OPEN
TEST ACTION APPLICABILITY
1 Disconnect the Driver Door Ajar Switch connector.
Connect a jumper wire between the Sense circuit and the Ground circuit.
With the DRBIIIt in Inputs/Outputs, read the DRV DOOR AJAR SW state.
Does the DRBIIIt display CLOSED?
All
Yes → Replace the Driver Door Ajar Switch.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 2
2 Disconnect the Driver Door Ajar switch connector.
Using a 12-volt Test Light connected to 12-volts, test the Ground circuit for
continuity.
Does the test light illuminate brightly?
All
Yes → Go To 3
No → Repair the Driver Door Ajar Switch Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
3 Disconnect the Driver Door Ajar Switch connector.
Disconnect the Instrument Cluster C3 harness connector.
Measure the resistance of the Driver Door Ajar Switch Sense circuit between the
Instrument Cluster connector and the Door Ajar Switch connector.
Is the resistance below 5.0 ohms?
All
Yes → Go To 4
No → Repair the Driver Door Ajar Switch Sense circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
4 If there are no possible causes remaining, view repair. All
Repair
Replace the Instrument Cluster.
315
DOOR AJAR