Sistemas de maçanetas, travas, fechaduras e acesso

501-14-5 Handles, Locks, Latches and Entry Systems 501-14-5 DESCRIPTION AND OPERATION General When one of the buttons on the remote control is pressed, a coded HF radio signal is sent from the transmitter in the mechanical key. This signal is received by the RF receiver located in the BCM (body control module), which decodes the signal. If the coded signal is valid, the BCM will operate the latches. Unlocking is confirmed by one long flash of the turn signal lamps, when the unlocking is completed. There are various circumstances in which remote unlocking is not possible: ‡ The radio transmitter or receiver is overloaded because of radio interference. ‡ The key (electronics) is damaged. ‡ The battery in the key is discharged. ‡ The overload protection of the door latches is active (after too many operations). As well as remote keyless entry, the vehicle can be locked and unlocked using the lock cylinder in the driver's door. If RKE is not fitted, the vehicle can also been unlocked using the lock cylinder in the passenger's door. The lock cylinder is mechanically connected to a switch, which is linked to the BCM. Double Locking The double locking system has the same functionality of central locking but also prevents the doors from being opened from inside using the interior door handles. The double locking function is actuated if one of the following conditions is satisfied: ‡ A key is inserted into a door cylinder lock and turned to the "locking" position twice within 3 seconds. ‡ The locking button on the remote transmitter is pressed twice within 3 seconds. Confirmation that the vehicle is double locked is also given by two short flashes of the turn signal lamps, when the double locking process is completed. The ordinary central locking in this case will be signaled by a single short flash of the turn signal lamps. Door latch for single cab The front door entry system contains a latch that is fastened to the inside of the door frame and is controlled by the exterior and interior door handles. The latch contains the door ajar switch and door lock actuator. The front doors are locked/unlocked by the Remote Keyless Entry (RKE) transmitter, lock/unlock button inside the vehicle or the driver door lock cylinder. The door latches have electric motors to operate the locking and double locking function. The electric motors are actuated directly by the BCM. When the door latch is locked, the exterior door handle is disengaged from the door latch. A control switch is incorporated in the door latch in the driver's door. This control switch monitors the position of the door latch and reports the information to the BCM. This information is sent to the BCM for use in warning systems, locking functions and anti-theft alarm systems. Door latch for double cab The front door entry system contains a latch that is fastened to the inside of the door frame and is controlled by the exterior and interior door handles. The latch contains the door ajar switch and door lock actuator. The front doors are locked/unlocked by the Remote Keyless Entry (RKE) transmitter, lock/unlock button inside the vehicle or the driver door lock cylinder. The rear door entry system contains a latch that is fastened to the inside of the door frame and is controlled by the exterior and interior door handles. The latch contains the door ajar switch and door lock actuator. The rear doors can be locked/unlocked by the RKE transmitter, lock/unlock button inside the vehicle. The rear doors have a child safety lock feature, which is a manual lock on the inside of the rear door frame. When the child safety feature is on, the rear doors cannot be opened from the interior door handle. The door latches have electric motors to operate the locking and double locking function. The electric motors are actuated directly by the BCM. When the door latch is locked, the exterior door handle is disengaged from the door latch. A control switch is incorporated in the driver's door latch. This control switch monitors the position of the door latch and reports the information to the BCM. This information is sent to the BCM for use in warning systems, locking functions and anti-theft alarm systems. Door latch for super cab The front door entry system contains a latch that is fastened to the inside of the door frame and is controlled by the exterior and interior door handles.