RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
After actuating the door unlock output, allow the door lock motors to be activated if the door lock input has been inactive (not erratic) for 2 seconds
since the reception of the airbag deployment message.
REMOTE KEYLESS ENTRY
The remote keyless entry (RKE) feature is used to control the power door locks and panic feature by using a remote transmitter (keylob) and receiver
located within the instrument cluster. The instrument cluster RKE feature controls the driver door unlock, all doors lock/unlock, horn chirp
enabled/disable, optical chirp enabled/disable, illuminated entry, the panic feature, initiate customer programming, and arming/disarming the Vehicle
Theft Security System.
When a valid lock message is received from the receiver, the instrument cluster will:
Arm the Vehicle Theft Security System (if equipped and all conditions are met).
Turn OFF the illuminated entry feature.
Activate the door lock motors.
Transmit a PCI bus message to the FCM to perform horn chirp.
When a valid unlock code is received from the receiver, the instrument cluster will:
Disarm the Vehicle Theft Security System (if equipped and previously set).
Activate the illuminated entry and cargo lamp.
Activate the driver door unlock motor (if customer programmed for driver door only unlock).
Transmit a PCI bus message to the FCM for optical chirp.
Vehicle Theft Security System
VEHICLE THEFT SECURITY SYSTEM
The Instrument Cluster controls the Vehicle Theft Security System (VTSS) and enables VTSS itself from the presence of Sentry Key Immobilizer
module PCI bus messages. When the VTSS is armed it will monitor the status of the ignition and door ajar switches. If the alarm is tripped it will sound
the vehicles horn, flash the exterior lamps and the VTSS indicator located in the instrument cluster.
Arming the system is accomplished following a normal exit sequence of removing the key from the ignition, opening the door pressing the power lock
button to lock and closing the door, by using a cylinder lock switch or by pressing the RKE lock button. After all the doors are closed, the VTSS
indicator will flash quickly for sixteen-seconds indicating the pre-arm process, after which it will flash at a slower rate indicating the system is armed. If
during the pre-arm process a door is opened, the ignition is turned to the Run/Start position or if a RKE unlock button is pressed the system will exit the
pre-arming process.
Disarming can be accomplished with a RKE unlock, turning the ignition ON with a valid Sentry key or unlocking the vehicle with a cylinder lock switch.
The Alarming state will last for 18 minutes after which it will timeout and return to the armed state. A tamper alert feature will alert the customer to the
alarm being tripped while they were away upon returning to the vehicle by flashing the VTSS indicator for 30 seconds after the system has been
disarmed.
All of the switches for the VTSS system can be monitored using the DRB III. The DRB III is also useful for a customer complaint of the alarm going
OFF with no apparent reason by viewing the VTSS last alarm caused by display.
Windshield Wipers/Washers
WINDSHIELD WIPERS/WASHERS
The Instrument Cluster controls the wiper/washer system. The instrument cluster receives a signal from the Multifunction Switch wipe position. The
instrument cluster sends the message to the Front Control Module (FCM), sending the command to turn the wiper/washers ON. Two relays, the
High/Low relay and the ON/OFF relay also control the wipers. Both are located in the PDC or Integrated Power Module.
