Keyless/Power Door Locks/Security System Description
Keyless/Power Door Locks/Security System Description
Security Alarm System
NOTE: This applies to RTS and RTL (USA model) or EX-L (Canada model).
The security alarm system is armed automatically after the doors, hood, and trunk are closed and locked. For the system to arm, the ignition switch must be in the LOCK (0) position, the key must be removed from the ignition switch, and the MICU must receive inputs that the doors, hood, in-bed trunk are closed and locked. The alarm can be disarmed at any time by unlocking the driver's door with the key or pressing the UNLOCK button on the transmitter.
When everything is closed and locked, the only inputs that are grounded, and have 0 V, are the driver's door lock knob switch (LOCK position) input, and the audio unit or audio disc changer security input. In other words, all of the other switches are open, and have about 10 to 12 V, including the key cylinder switches. The security indicator in the gauge control module begins to blink immediately after the vehicle is completely closed and locked, and 15 seconds later, the security system arms and the security indicator blinks for a shorter amount of time than before. If the security indicator does not flash, the system is not arming. A horn sounds, side marker lights, taillights, license plate lights and parking lights flash to confirm the security alarm system is armed if the LOCK button is pressed a second time within 5 seconds.
If one of the switches is misadjusted or shorted internally, or there is a short in to ground in the circuit, the security system will not arm. As long as the control unit continues to receive a ground input (0 V), it senses that the vehicle is not closed and locked, and the system will not arm. A switch that is slightly misadjusted can cause the alarm to sound for no apparent reason. In this case, a significant change in outside air temperature, the vibration of a passing truck, or someone bumping into the vehicle could cause the horn to sound. There is no glass breakage or motion detector feature.
If anything is opened or improperly unlocked after the system is armed, the control unit receives a ground signal from that switch, and the 10-12 V reference drops to 0 V. If the audio unit or audio disc changer is disconnected, the input loses its ground, and the input voltage goes to 10-12 V. The system sounds the alarm when any of these occur:
- A door or the in-bed trunk is forced open
- A door is unlocked without using the key or the remote transmitter
- The hood is opened
- The audio unit or audio disc changer is disconnected
- The remote panic is operated
When the system sounds the alarm, the horns sound and the exterior lights flash for 2 minutes. The alarm can be stopped at any time by unlocking the driver's door with by pressing any button on the transmitter.
Panic Mode
The panic mode sounds the alarm in order to attract attention. When the PANIC button on the transmitter is pressed and held for 2 seconds, the horn sounds and the exterior lights flash for about 20 seconds.
The panic mode can be canceled at any time by pressing any button on the remote transmitter or by turning the ignition switch to ON (II). The panic mode will not function if the ignition switch is in ON (II).
Keyless Entry System
The keyless entry system is integrated with the MICU. The multiplex integrated control unit (MICU) receives LOCK, UNLOCK and PANIC signals from the door multiplex control unit (keyless receiver).
The keyless entry system allows you to lock and unlock the vehicle with the remote transmitter. When you press the LOCK button, all doors lock. When you press the UNLOCK button once, only the driver's door unlocks. The other doors will unlock at the second time you press the button. The doors will not lock with the transmitter if a door is not fully closed, or if the key is in the ignition switch.
If the UNLOCK button is pressed, released, then pressed and held, the windows will start to open. The windows stop if the button is released. See Power Windows and troubleshooting for more information.
When the switch for the interior light switch and the ceiling light is in the center (DOOR) position, it will come on when the UNLOCK button is pressed. If a door is not opened, the light will go off and the doors will relock in about 30 seconds. If the doors are locked with the transmitter within 30 seconds, the light will go off immediately.