Power Locks - Description

DESCRIPTION

POWER LOCKS

The power lock system allows all of the doors and liftgate to be locked or unlocked electrically by operating a switch on either front door trim panel. The power lock system receives non-switched battery current through a fuse in the Junction Block (JB), so that the power locks remain operational, regardless of the ignition switch position.

The ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) locks the doors automatically when the vehicle speed exceeds about 25 kilometers-per-hour (about 15 miles-per-hour), all doors are closed and the accelerator pedal is depressed. The rolling door lock feature can be disabled using the customer programmable features function of the Electronic Vehicle Information Center (EVIC). This vehicle offers several customer programmable features, which allows the selection of several optional electronic features to suit individual preferences.

The power lock system for this vehicle can also be operated remotely using the Remote Keyless Entry (RKE) transmitter buttons found on the FOB with Integrated Key (FOBIK).

CENTRAL LOCKING/UNLOCKING

The central locking system controls powered operation of the door and the illuminated entry system. Central locking includes the following features:

- Automatic locking of the doors when the vehicle speed exceeds about 25 kilometers-per-hour (about 15 miles-per-hour).
- Locking prevention with a door lock switch or the RKE transmitter buttons if the FOBIK is in the ignition switch and the driver side front door is open.
- Driver selectable unlocking mode: Unlock only the driver side front door or all doors with one press of the RKE transmitter UNLOCK button of the FOBIK.
- Automatic illumination of interior courtesy lamps when the vehicle is unlocked using the RKE transmitter UNLOCK button of the FOBIK.
- Locking all doors by pressing the RKE transmitter LOCK button of the FOBIK, or by pressing a power lock switch on one of the front doors.

DOOR LOCK MOTORS

The lock mechanisms are actuated by a reversible electric motor mounted within each door. The power lock motors are integral to the door latch units.

The power lock motors cannot be adjusted or repaired. If inoperative or damaged, the door latch unit must be replaced.

PASSIVE ENTRY

The optional Passive Entry (PE) system allows the vehicle to be unlocked without the use of a key, as long as an authorized FOB with Integrated Key (FOBIK) is in the possession of, or in close proximity to the individual and the aperture of the vehicle that is to be unlocked. All other features and customer programmable feature settings of the power lock system, including Remote Keyless Entry (RKE) function the same as they would on vehicles without the PE system.

The PE system includes the following unique major components:

- Deck Lid Release Switch - The Center High Mounted Stop Lamp (CHMSL) used on vehicles equipped with the optional PE system includes a tactile deck lid release switch. Only the switch push button is visible on the outer left side of the CHMSL lens installed in the deck lid. The remainder of the switch is mounted on the back of the CHMSL housing on the inside of the deck lid.
- Door Handle Switches - Each PE front door outside handle (also known as a Smart handle) is equipped with three switches and an Integrated Circuit (IC). A tactile LOCK switch is located on the outer vertical surface of each front door handle grip, a capacitive UNLOCK switch membrane is located on the inner vertical surface of the handle grip, while a Hall effect switch and the IC are concealed within the handle grip.
- Low Frequency Antennas - The PE system includes four low frequency antennas, one mounted on the instrument panel base trim substrate below the radio, one on each rear door inner panel behind the trim panel and one at the forward edge of the spare tire well within the trunk compartment.
- Passive Entry Module - A Passive Entry Module (PEM) (also known as the Passive Entry Keyless Go/PEKG module) is located in the instrument panel above the glove box opening. Passive Entry Module - Description.

REMOTE KEYLESS ENTRY

The Remote Keyless Entry (RKE) system locks and unlocks the doors and liftgate, turns on interior lamps, and arms and disarms the Vehicle Theft Security System (if equipped). The RKE system operates on non-switched battery current through a fuse in the Integrated Power Module (TIPM) (also known as the Front Control Module/FCM), so that the system remains operational regardless of the ignition switch position.

The RKE transmitter FOBIKs are also equipped with a PANIC button. If the PANIC button on the RKE transmitter FOBIK is depressed, the horn will sound and the exterior lights will flash on the vehicle for about three minutes or until the PANIC button is depressed a second time. A vehicle speed of about 25 kilometers-per-hour (about 15 miles-per-hour) will also cancel the panic event.

The RKE system can also perform other functions on this vehicle. If the vehicle is equipped with the optional Vehicle Theft Security System (VTSS), the RKE transmitter will arm the VTSS when the LOCK button of the FOBIK is depressed and disarm the VTSS when the UNLOCK button of the FOBIK is depressed.

The RKE system includes two transmitters when the vehicle is shipped from the factory, but the system can retain the vehicle access codes of up to a total of eight transmitters. The transmitter codes are retained in the RKE system memory, even if the battery is disconnected. If an RKE transmitter FOBIK is faulty or lost, new transmitter vehicle access codes can be programmed into the system using a scan tool.

This vehicle also offers several customer programmable features, which allows the selection of several optional electronic features to suit individual preferences. Customer programmable feature options affecting the RKE system include:

- Remote Unlock Sequence - Allows the option of having only the driver side front door unlock when the RKE transmitter UNLOCK button of the FOBIK is depressed the first time. The remaining doors unlock when the button is depressed a second time within five seconds of the first UNLOCK button press. Another option is having all doors unlock upon the first depression of the RKE transmitter UNLOCK button of the FOBIK.
- Sound Horn on Lock - Allows the option of having the horn sound a short chirp as an audible verification that the RKE system received a valid LOCK request from the RKE transmitter, or having no audible verification.
- Flash Lights with Lock and Unlock - Allows the option of having the park lamps flash as an optical verification that the RKE system received a valid LOCK request or UNLOCK request from the RKE transmitter, or having no optical verification.
- Programming Additional Transmitters - Allows up to a total of eight transmitter vehicle access codes to be stored in the RKE system memory.

Certain functions and features of the RKE system rely upon resources shared with other electronic modules in the vehicle over the CAN data bus network. For 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.