Power Locks - Description

DESCRIPTION

POWER LOCKS

The power door lock system allows the doors, ram boxes, and tailgate to be locked/unlocked electrically in three ways: (1) interior door lock/unlock switches on the front door armrests, (2) FOBIK/RKE (Remote Keyless Entry) system switches, or (3) Keyless Enter-N-Go(TM) (Passive Entry). All the door locks, including ram box and tailgate are powered by output drivers in the Body Control Module (BCM). Inputs for the lock system can come from the interior lock/unlock switches, RKE FOBIK switches, or the Passive Entry outside door handle switches. The output BCM drivers a provides a battery voltage to the door lock motor for a specified time to lock/unlock the door. There are two door modules, the Driver Door Module (DDM) and Passenger Door Module (PDM) which transmit the interior lock/unlock switch state to the BCM over the vehicle CAN bus. The door modules have an unswitched battery feed from the Body Control Module (BCM), so the locks can be actuated in any ignition switch position.

The BCM locks the doors automatically when the vehicle is driven beyond the speed of 25.7 km/h (15 mph), all doors are closed and the accelerator pedal is depressed. The rolling door lock feature can be disabled by the customer if desired.

This vehicle also offers several other customer programmable features, which allows the selection of several optional electronic features to suit individual preferences.

Keyless Enter-N-Go(TM) (Passive Entry) - The Passive Entry system is an enhancement to the vehicle's Remote Keyless Entry (RKE) system and a feature of Keyless Enter-N-Go(TM). This feature allows you to lock and unlock the vehicle's door(s) by pressing a switch on the outside door handle to lock, or by grabbing and touching the backside surface of the outside door handle to unlock.

Certain functions and features of the power lock system rely upon resources shared with other electronic modules in the vehicle over the CAN data bus network. For proper diagnosis of these electronic modules or of the CAN data bus network, the use of a scan tool and the appropriate diagnostic information are required.

AUTOMATIC DOOR LOCKS

When enabled, this feature will lock all of the door locks if all of the doors are closed and the vehicle speed goes above 25.7 km/h (15 mph). If a door unlock has occurred, then the BCM will perform another auto lock, if the doors did not electrically unlock, another auto lock will not occur.

DOOR LOCK INHIBIT

For Keyless Go and Passive Entry equipped vehicles, the doors will self-unlock after closing the door, and the horn will chirp 3 times, if a FOBIK is detected inside the vehicle (FOBIK Safe feature) during an interior lock switch lock attempt with any door ajar. FOBiK Safe unlock can occur up to two times in the same ignition cycle, giving the driver two warnings that the FOBIK is inside the vehicle. On the third interior lock switch lock attempt with door ajar, and a FOBIK inside the vehicle, the doors will lock and stay locked. In this case, the doors can only be unlocked with the physical metal cut key (originally stored in a slot inside the FOBIK), or with another FOBIK (up to 8 total) learned to the RF Hub.

REMOTE KEYLESS ENTRY

The Remote Keyless Entry (RKE) system is standard factory-installed equipment on this vehicle. The RKE system includes the following major components, which are described in further detail elsewhere in this service information:

- Electronic Vehicle Information Center - The EVIC is a digital display integral to the Instrument Cluster, which is located in the instrument panel in front of the driver. Electronic Vehicle Information Center - Description.

- Remote Keyless Entry System Transmitter - The RKE system transmitter (also known as the FOB or FOBIK with Integrated Key slotted inside /FOBIK) is the battery powered, wireless and portable Radio Frequency (RF) user controller for all of the features of the RKE system.

- Keyless Ignition Node - The Keyless Ignition Node (KIN) is the input (via LIN bus) to the RKE system control module and RF receiver located in the instrument panel, just to the right of the steering wheel. The KIN also includes an integral ignition switch or push button switch in the case of Keyless Go..

These components and their controls are combined to provide the following RKE system features:

- Customer Programmable Features - The vehicle operator interfaces with the RF Hub (RFH), which is the RKE system controller, using the EVIC or Radio display screen. An EVIC switch pod located on the left horizontal spoke of the steering wheel or Settings in the Radio screen allows the vehicle operator to set or change the RKE system Customer Programmable Features through the EVIC display.

- Flash Lights With Lock And Unlock - This is a Customer Programmable feature of the RKE system. The first option has the park lamps flash as an optical verification that the RKE system has received a valid Lock or Unlock request from the FOBIK. The second option disables the optical verification feature.

- Panic Feature - In certain markets the FOBIK may also be equipped with a red Panic button. Depressing the Panic button of the FOBIK while within transmitter range will sound the vehicle signal horn and flash the exterior lighting of the vehicle for about three minutes or until the Panic button is depressed a second time, whichever occurs first. Attaining a vehicle speed of about 25.7 kilometers per hour (15 miles per hour) will also cancel the panic event.

- Programming Additional Transmitters - Two RKE transmitters are shipped with the vehicle from the factory, but the RKE system can retain the vehicle access codes of up to a total of eight transmitters. The transmitter codes are retained in the RKE system controller memory, even if the battery is disconnected. If a FOBIK is ineffective, lost or an additional FOBIK is desired, new transmitter vehicle access codes can be programmed into the system using a diagnostic scan tool.

- Ram Box Lock and Unlock - Depressing the unlock button on the FOBIK twice within 5 seconds while within transmitter range will unlatch the RAM Box. If Driver Door Only is selected by Customer Programmable Features, the FOBIK unlock will have to be pressed twice within 5 seconds.

- Tailgate Lock and Unlock- Depressing the unlock button on the FOBIK while within transmitter range will unlatch the tailgate. If Driver Door Only is selected by Customer Programmable Features, the FOBIK unlock will have to be pressed twice within 5 seconds.
- Remote Engine Start - On vehicles equipped with the optional Remote Starting System, depressing the Remote Start button of the FOBIK twice while within transmitter range will start the engine of the vehicle.

- Remote Locking - Depressing the Lock button of the FOBIK while within transmitter range will lock all of the vehicle doors, Ram Box and tailgate.

- Remote Unlocking - Depressing the Unlock button of the FOBIK while within transmitter range will unlock the vehicle and activate the Illuminated Entry System. The specific locks operated and the number of FOBIK button presses required varies depending upon the Customer Programmable settings chosen by the vehicle operator.

- Remote Unlock Sequence - This is a Customer Programmable feature of the RKE system. There are two options available. The first option allows only the driver side front door to unlock when the FOBIK Unlock button is depressed one time, and the passenger door, Ram Box and tailgate unlocks when the button is depressed a second time within 5 seconds of the first press. The second option allows both doors to unlock upon a single press of the FOBIK Unlock button.

- Sound Horn On Lock - This is a Customer Programmable feature of the RKE system. There are two options available. The first option has the signal horn of the vehicle sound a short chirp as an audible verification that the RKE system received a valid Lock request from the FOBIK. The second option disables the audible verification feature.

- Vehicle Theft Security System Arming - If the vehicle is equipped with the optional Vehicle Theft Security System (VTSS), depressing the Lock button of the FOBIK while within transmitter range will arm the VTSS in addition to activating the remote locking feature. .

- Vehicle Theft Security System Disarming - If the vehicle is equipped with the optional Vehicle Theft Security System (VTSS), depressing the Unlock button of the FOBIK while within transmitter range will disarm the VTSS in addition to activating the remote unlocking feature. .

Hard wired circuitry connects many of the RKE system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the RKE system components through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds.