Dodge Ram. Manual — part 131
Symptom:
*ALARM TRIPS ON ITS OWN
POSSIBLE CAUSES
DRB DISPLAY LAST VTSS CAUSE
INTERMITTENT CONDITION
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t in Inputs/Outputs, read the Last VTSS Cause state.
Were there any causes displayed?
All
Yes
→ Check for a possible intermittent condition with the circuit
indicated by the DRBIII
t.
Perform VTSS VERIFICATION TEST - 1A.
No
→ The condition that caused this symptom is currently not present.
Inspect the related wiring harness for a possible intermittent
condition. Look for any chafed, pierced, pinched or partially
broken wires.
Perform VTSS VERIFICATION TEST - 1A.
521
VEHICLE THEFT/SECURITY
Symptom:
*DRIVER DOOR DOES NOT TRIP VTSS
POSSIBLE CAUSES
DRIVER DOOR AJAR CIRCUIT
VERIFY VTSS OPERATION
VTSS NOT ENABLED IN FCM
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, read the DRVR DOOR AJAR SW status.
Open the driver door.
Does the DRBIII
t display CLOSED?
All
Yes
→ Go To 2
No
→ Refer to symptom DRIVER DOOR AJAR CIRCUIT OPEN in the
DOOR AJAR section.
Perform VTSS VERIFICATION TEST - 1A.
2
Open the driver’s door window.
Remove key from ignition switch.
Use the RKE or power door lock switch to lock the doors then close all doors.
Wait approximately 15 seconds for the VTSS indicator to flash at a slower rate
indicating the Vehicle Theft Security System is armed.
Manually unlock the driver door lock.
Attempt to trip the VTSS by opening the drivers door.
Did the VTSS trip when the door was opened?
All
Yes
→ Test complete.
Perform VTSS VERIFICATION TEST - 1A.
No
→ Go To 3
3
Turn the ignition Off to the lock position.
Disconnect the negative battery cable wait 5 seconds then reconnect.
Turn the ignition to the On position for 10 seconds then back Off to the lock position
and remove key.
Arm the VTSS and attempt to trip to alarming state by manually unlocking door and
opening.
Did the VTSS trip to the alarming state when the door was opened?
All
Yes
→ Test complete.
Perform VTSS VERIFICATION TEST - 1A.
No
→ Replace and program the Instrument Cluster in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
522
VEHICLE THEFT/SECURITY
Symptom:
*HEADLAMPS FAIL TO FLASH WHEN ALARM IS TRIPPED
POSSIBLE CAUSES
FCM DTCS OR EXTERIOR LAMP OPERATION
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
Attempt to operate the exterior lamps with the headlamp switch.
With the DRBIII
t, read FCM DTCs.
Were there any problems found?
All
Yes
→ Refer to symptom list for problems related to Exterior Lighting.
Perform VTSS VERIFICATION TEST - 1A.
No
→ Replace and program the Instrument Cluster in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
523
VEHICLE THEFT/SECURITY
Symptom:
*HORN FAILS TO SOUND WHEN ALARM IS TRIPPED
POSSIBLE CAUSES
DTC PRESENT
HORN CIRCUIT
INSTRUMENT CLUSTER - VTSS
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read FCM DTC’s.
Does the DRBIII
t display a HORN RELAY CONTROL CIRCUIT DTC active?
All
Yes
→ Refer to the Ignition, Power, Accessory category for the related
symptom(s).
Perform VTSS VERIFICATION TEST - 1A.
No
→ Go To 2
2
Does the horn operate from the horn button?
All
Yes
→ Replace and program the Instrument Cluster in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Refer to symptom Horns Inoperative in the Ignition, Power,
Accessory category.
Perform VTSS VERIFICATION TEST - 1A.
524
VEHICLE THEFT/SECURITY
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