Passive Entry

The passive entry feature unlocks or locks the doors or opens the luggage compartment lid without having to use a mechanical key blade or the RKE transmitter feature.

When the BCM detects a lock or unlock sensor is touched on an exterior door handle, or the exterior luggage compartment lid release button is pressed, it activates the low frequency antenna in the corresponding exterior door handle or inside the luggage compartment area. The low frequency antenna sends out a signal to activate the passive key. The passive key then responds by sending a high frequency signal back to the RTM. The RTM interprets the high frequency signal from the passive key and sends the information to the BCM. If the BCM detects a valid programmed passive key, the BCM either unlocks the driver door, unlocks or locks both doors, or releases the luggage compartment lid latch.

Door Passive Entry 

With a programmed passive key within 1 m (3.28 ft) outside a door, touch the lock or unlock sensor on the exterior door handle. The doors lock or unlock depending upon which sensor was touched on the handle. The unlock sensor is located on the inside of the handle and the lock sensor is located on the outside face of the handle.

The driver front door passive entry feature either unlocks the driver door (if 2-stage unlock is enabled) or both doors (if 2-staged unlock is disabled). The passive entry feature always locks both doors when the lock button is touched.

The passenger door passive entry feature always locks or unlocks both doors.

Luggage Compartment Lid Passive Entry 

With a programmed passive key within 1 m (3.28 ft) outside the luggage compartment lid, press the exterior luggage compartment lid release button (above the license plate) at the rear of the vehicle to open the luggage compartment lid.

Component Description

Door Lock Control Switches 

The door lock control switches are dual pole, single throw momentary contact switches. The BCM (vehicles without memory seat) or the DDM and PDM (vehicles with memory seat) provide the voltage signals to the door lock control switches for the lock and unlock requests. When a switch is pressed to lock or unlock, the corresponding input circuit is routed to ground, indicating a request to lock or unlock the doors.

Door Latches 

The door latches are sealed units and contain the door lock actuator, lock/unlock feedback switch, and the door ajar switch. The door lock actuators operate in 2 directions, depending on the polarity of the voltage. The door latches can be lubricated, if needed.

Interior Luggage Compartment Lid Release Switch 

The interior luggage compartment lid release switch is a momentary contact switch that supplies a ground signal to the BCM. When the interior luggage compartment lid release switch is pressed, the signal is routed to ground indicating a request to the BCM to release the luggage compartment lid latch.

Exterior Luggage Compartment Lid Release Switch 

The exterior luggage compartment lid release switch is a momentary contact switch that supplies a ground signal to the BCM. When the exterior luggage compartment lid release switch is pressed, the signal is routed to ground indicating a request to the BCM to release the luggage compartment lid latch.

Luggage Compartment Lid Latch 

The luggage compartment lid latch contains the luggage compartment lid latch release motor and the luggage compartment lid ajar switch. The luggage compartment lid latch release motor is momentarily supplied voltage by the BCM when a valid request to open the luggage compartment lid is detected.

DDM or PDM 

When equipped with a memory seat, the DDM and the PDM monitor the door lock control switches and control the operation of the power windows and the power mirrors. They communicate with each other and the BCM over the CAN.

The DDM and PDM require PMI when replaced.

Passive Key 

The passive key incorporates both the PATS and RKE transmitter functions in a single device.

During key programming procedures, the PATS and RKE transmitter Identification (ID) of a passive key are both programmed. A maximum of 4 passive keys can be programmed.

The passive key also contains a removable key blade that unlocks the driver door in the event of an electrical failure (such as a drained battery). The passive key requires 2 batteries. They should always be replaced as a set. For battery replacement instructions, refer to the Owner's Manual.

To start the vehicle in the event of a passive key battery failure, place the passive key in the backup starting location. Refer to: Passive Anti-Theft System (PATS) - System Operation and Component Description .

Exterior Door Handles 

The exterior door handles contain a keyless entry antenna and capacitive touch sensor(s). The antennas and lock/unlock sensors are wired to the BCM. When activated, the antenna transmits a low frequency signal to activate a passive key.

Keyless Entry Rear Antenna 

The keyless entry rear antenna is monitored and activated by the BCM. When activated, it transmits a low frequency signal to activate a passive key.

RTM 

The RTM communicates all RKE and passive key information to the BCM over a LIN-based circuit whether or not the CAN is active. The RTM is a receiving antenna that receives the high frequency signals from passive keys.

The RTM requires PMI when replaced.

BCM 

The BCM is the master module in control of the power door lock system. It is responsible for locking/unlocking the doors. The BCM receives inputs for the door lock control switches, passive keys and RKE commands over the CAN.

The BCM requires PMI when replaced. Additionally, at least 2 keys must be programmed and the parameter reset procedure carried out.