Component Description

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Door Lock Control Switches

The door lock control switches are double pole, single throw switches. The DDM and PDM provide the voltage signal to the corresponding door lock control switch 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 Lock Actuators

The door lock actuators are mounted to the door latches. The door lock actuators operate in 2 directions, depending on the polarity of the voltage.

Tailgate Release Switch

The tailgate release switch is a momentary contact switch. When the tailgate release switch is pressed, a voltage signal from the BCM is routed to ground indicating a request to release the tailgate latch.

Tailgate Lock Actuator

The tailgate lock actuator locks and unlocks the tailgate. It operates in 2 directions, depending on the polarity of the voltage.

Tailgate Latch Release Actuator

The tailgate latch release actuator releases the tailgate latches when actuated.

Keyless Entry Keypad

When a button is pressed on the keypad, it provides a ground signal to the corresponding voltage reference circuit(s) to the BCM.

DDM or PDM

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.

IKT

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

During key programming procedures, the PATS and RKE transmitter Identification (ID) of an IKT are both programmed. A maximum of 8 keys can be programmed.

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 Literature.

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 front 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.

The rear door handles are not equipped with antennas or lock/unlock sensors.

Keyless Entry Rear Antenna

The keyless entry rear antenna is wired to 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 Integrated Keyhead Transmitters (IKTs) and passive keys.

The RTM requires PMI when replaced.

BCM

The BCM is the primary 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 and at least 2 keys programmed to it.