Component Description
Anti-Theft - Perimeter - with Intelligent Access (IA)
Component Description
Hood Switch
The hood switch receives a voltage signal from the BCM (Body Control Module) on an input circuit. When the hood is closed, the hood switch is closed, routing the signal to ground. When the hood is opened, the hood switch opens, interrupting the signal. The BCM (Body Control Module) interprets this as an open hood.
The hood switch is part of the hood latch and not serviceable separately.
Door Ajar Switch
The door ajar switches each receive a voltage signal from the BCM (Body Control Module) on independent circuits. When the door is closed, the door ajar switch is closed, routing the signal to ground. When the door is opened, the door ajar switch opens, interrupting the signal. The BCM (Body Control Module) interprets this as an open door.
The door ajar switches are part of the door latches and not serviceable separately.
Liftgate or Luggage Compartment Lid Ajar Switch
The liftgate or luggage compartment lid ajar switch receives a voltage signal from the BCM (Body Control Module) on an independent circuit. When the liftgate or luggage compartment lid is closed, the ajar switch is closed, routing the signal to ground. When the liftgate or luggage compartment lid is opened, the ajar switch opens, interrupting the signal. The BCM (Body Control Module) interprets this as an open liftgate or luggage compartment lid.
The ajar switch is part of the liftgate or luggage compartment lid latch and not serviceable separately.
Door Lock Control Switch
The door lock control switch receives a voltage signal from the BCM (Body Control Module) on the input circuit. When the switch is pressed, the input circuit is routed to ground, signalling the BCM (Body Control Module) to lock or unlock the doors.
The door lock control switch contains a door lock indicator for a visual indication of the door lock status. The BCM (Body Control Module) controls the door lock indicator on the door lock control switch. If all 4 doors are locked, the indicator is illuminated.
Intelligent Access (IA) Key
The IA (Intelligent Access) key incorporates both the PATS (Passive Anti-Theft System) and the RKE (Remote Keyless Entry) transmitter functions in a single device. A programmed IA (Intelligent Access) key must be located inside the vehicle for engine starting and on the outside for IA (Intelligent Access) features. During key programming procedures, the PATS (Passive Anti-Theft System) and RKE (Remote Keyless Entry) transmitter of an IA (Intelligent Access) key are both programmed into the RFA (Remote Function Actuator) module and BCM (Body Control Module). The vehicle accepts programming of up to 4 IA (Intelligent Access) keys. REFER to Erase All Keys and Program Two Keys Erase All Keys and Program Two Keys or REFER to Key Programming Using Diagnostic Equipment Key Programming Using Diagnostic Equipment for the key programming procedures.
Remote Functions Receiver (RFR) Module
The RFR (Remote Functions Receiver) module is a receiving antenna that receives the wireless signals from programmed IA (Intelligent Access) keys. The programmed IA (Intelligent Access) key data is sent to the RFA (Remote Function Actuator) module through a dedicated single circuit network.
Body Control Module (BCM)
The BCM (Body Control Module) controls the operation of the perimeter alarm. The BCM (Body Control Module) receives direct input from:
- the ajar switches
- the hood switch
- the door lock control switch
- the PATS (Passive Anti-Theft System) transceiver
It receives programmed RKE (Remote Keyless Entry) and IA (Intelligent Access) key information from the RFA (Remote Function Actuator) module over the MS-CAN (Medium Speed Controller Area Network).
REFER to Body Control Module (BCM) .
Remote Function Actuator (RFA) Module
The RFA (Remote Function Actuator) module receives the programmed RKE (Remote Keyless Entry) and IA (Intelligent Access) requests from the IA (Intelligent Access) keys via the RFR (Remote Functions Receiver) module. The RFA (Remote Function Actuator) module sends the programmed RKE (Remote Keyless Entry) and IA (Intelligent Access) requests to the BCM (Body Control Module) over the MS-CAN (Medium Speed Controller Area Network).
REFER to Remote Function Actuator (RFA) .