Component Description

Door Lock Control Switches 

The door lock control switches are single pole, double throw switches. They are supplied voltage signals from the BCM 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.

Each door lock control switch has an integral LED to indicate the status of the door locks.

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 latches can be lubricated, if needed. Refer to: Door Latch Lubrication .

Liftgate Release Switch 

The exterior liftgate release switch is a momentary contact switch that supplies a ground signal to the BCM. When the exterior liftgate release switch is pressed, the signal is routed to ground indicating a request to the BCM to release the liftgate latch. The release switch only operates when the doors are unlocked electronically or within 45 seconds of an initial press of the liftgate release button on a RKE transmitter.

Liftgate Latch 

The liftgate latch contains the release actuator and the ajar switch. The BJB provides voltage to the actuator to unlatch the liftgate from the striker.

IKT 

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

During key programming procedures, the PATS and RKE transmitter of an IKT are both programmed into the BCM.

RTM 

The RTM communicates all RKE to the BCM over a LIN-based circuit whether or not the CAN is active. The RTM is a receiving antenna that receives signals from the RKE transmitter.

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 direct input from the liftgate release switch and the door lock control switches.

The BCM requires PMI when replaced.