RAM 2500 Truck 2WD V8-5.7L VIN D (2004)
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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:
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Disarm the Vehicle Theft Security System (if equipped and previously set).
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Activate the illuminated entry and cargo lamp.
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Activate the driver door unlock motor (if customer programmed for driver door only unlock).
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Transmit a PCI bus message to the FCM for optical chirp.
Vehicle Theft Security System
The Instrument Cluster controls the Vehicle Theft Security System (VTSS). 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.
The Instrument Cluster will enable the VTSS feature once it has received PCI bus messages from the Sentry Key Immobilizer Module and has also
detected the driver cylinder lock switch being cycled to the lock/unlock position.
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 time out 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 DRBIII(R). The DRBIII(R) 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
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.
Telecommunications
HANDS FREE PHONE
The vehicle telecommunications system consists of a Hands Free Module, Rear view Mirror, and a Blue-tooth Hands Free Profile enabled cell phone.
The system allows vehicle occupants to use voice recognition technology to make, receive and screen phone calls without physically handling a cell
phone. The system has a programmable phone book that can prevent the vehicle operator from becoming distracted searching for a specific number.
Seven different wireless phones can be programmed to operate each individual system. Each of the seven phones is given a rank of priority when
programmed.
Incoming phone messages are transmitted to the vehicle occupants through the vehicles audio system when the ignition is on and the wireless phone is
on. Upon receiving the signal from an incoming phone call, the vehicle audio system will fade out the current CD/DVD or radio output. The vehicle
occupants are then directed to accept or reject the call. Outgoing audio messages are received through the microphone located in the rearview mirror then
transmitted via hardwire to the Hands Free Module and finally transmitted through the wireless phone. Volume of the voice prompts and incoming
conversation is controlled using the vehicles' radio audio controls and steering wheel controls if equipped. The rearview mirror contains a Phone Switch,
Voice Recognition Switch and a microphone. The rear view mirror transmits these inputs via hardwired circuits to the Hands Free Module.
