Dodge Ram 2004 Service Manual page 543

*VTSS WILL NOT ARM PROPERLY —
TEST
4 Ensure the doors are closed.
With the DRBIII , read the active DTC's and the ajar switch states.
Does the DRBIII display any closed switches or related DTC's?
Yes → Refer to the Symptom List and diagnose the appropriate symptom
→ Go To 5
No
5 Turn the ignition on.
With the DRBIII , read the Driver Cylinder Lock Switch MUX volts while turning
the key in the driver door lock cylinder.
Did the MUX voltage change from approximately 5.0 volts to 4.0 for lock and 2.4 for
unlock?
Yes → Replace and program the Instrument Cluster in accordance with
→ Go To 6
No
6 Disconnect the Cylinder Lock Switch connector.
Measure the voltage between Cylinder Lock Switch Mux circuit and ground.
Is the voltage between 4.6 and 5.2 volts?
Yes → Go To 7
→ Go To 8
No
7 Disconnect the Cylinder Lock Switch connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
Does the test light illuminate brightly?
Yes → Replace the Cylinder Lock Switch.
→ Repair the Ground circuit for an open.
No
8 Disconnect the Cylinder Lock Switch connector.
Disconnect the Instrument Cluster C2 connector.
Measure the resistance of the Cylinder Lock Switch Mux circuit between the Switch
connector and the Instrument Cluster connector.
Is the resistance below 5.0 ohms?
Yes → Replace the Instrument Cluster.
→ Repair the Cylinder Lock Switch Mux circuit for an open.
No
ACTION
in the DOOR AJAR or related category.
Perform VTSS VERIFICATION TEST - 1A.
the service information.
Perform BODY VERIFICATION TEST - VER 1.
Perform VTSS VERIFICATION TEST - 1A.
Perform VTSS VERIFICATION TEST - 1A.
Perform VTSS VERIFICATION TEST - 1A.
Perform VTSS VERIFICATION TEST - 1A.
VEHICLE THEFT/SECURITY
Continued
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APPLICABILITY
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