Remote Keyless Entry (RKE)

The body control module interfaces with the RKE module via a one-way serial bus interface. The RKE module is not on the PCI bus. The RKE module sends a 0-5 volt pulse width signal to the BCM depending on which button on the transmitter was pressed. The BCM controls the door lock/unlock functions and the arming/disarming of the Vehicle Theft Security System (if equipped) and the activation of illuminated entry. The BCM will also send the appropriate messages to the Power Sliding Doors and Power Liftgate modules. The Integrated Power Module (IPM) activates the park lamps, headlamps, and horn for horn chirp when sent the appropriate message from the BCM as received from the RKE transmitter. When a one-button press is made for unlock, both driver side doors will unlock and the front and rear turn signals will flash. When a second press is initiated (within 5 seconds of the first) both passenger doors will unlock and all four turn signals will flash.

The RKE module is capable of retaining up to 4 individual access codes (4 transmitters). If the PRNDL is in any position except park, the BCM will ground the interface thereby disabling the RKE.

Both the 3 and 6 buttons transmitters will have 2, CR2016 batteries in series. The minimum battery life should be approximately 4.7 years based on 20 transmissions a day at 84°F (25°C). Using the DRBIII® and selecting RKE FOB test can test the transmitter.

The RKE module can be programmed via the DRBIII® or the customer programming method. The BCM will only allow programming mode to be entered when the ignition is in the on position, the PRNDL is in park position, and the VTSS (if equipped) is in the disarmed mode.