Keyless Access System Description
Keyless Access System Description
The keyless access system consists of the keyless access control unit, the power control unit, the engine start/stop switch, the remote slot control unit, the electric steering lock, the remote slot, the door outer handle touch sensors/door lock switches, the LF (low frequency) antennas, the RF (radio frequency) units, the keyless access indicator, the keyless buzzer, the keyless access system mode switch, and the remote. The function of the system is to allow the driver keyless entry into the vehicle along with starting the engine without an ignition key.
Power Control Unit
The power control unit is located under the left side of the dash. The power control unit controls the power modes based upon signal from the engine start/stop switch, transmission range switch, park pin switch, brake pedal position switch, and B-CAN.
Keyless Access Control Unit
The keyless access control unit is located in the middle of the dashboard assembly. The control unit detects the remotes which allows access using the touch sensors in the outer door handles, and also allows the vehicle to operate using the one push start. The keyless access control unit can store up to 6 remote.
Touch Sensor and Lock Switches
The touch sensors and lock switches are built into the driver's and front passenger's door outer handles. To operate the door locks without the built-in key while carrying the remote, grip the door outer handle to unlock the doors and press the lock switch on the door outer handle to lock the doors.
RF (Radio Frequency) Units
RF unit 1 is located under the center console, and RF unit 2 is located on the front side of cargo area.
LF (Low Frequency) Antennas
The front interior, middle interior and rear LF antennas send the signals to the remote placed in the interior. The driver's door, front passenger's door, and rear bumper LF antennas send the signals to the keyless remote outside of the vehicle.
Engine Start/Stop Switch
The engine start/stop switch is located on the left side of dash. The power modes of the power control unit can be changed by pressing the engine start/stop button.
Keyless Access System Mode Switch
The keyless access system mode switch is installed in a glove box, and turns the keyless access function ON and OFF.
Remote Slot
The remote slot is located on the left side of dash. Insert the remote into the remote slot when the remote battery is dead, or the keyless access system mode switch is OFF. When the keyless access system mode switch is off, the remote cannot be removed from the remote slot until the vehicle is in the OFF mode.
Remote Slot Control Unit
The remote slot control unit is located on the middle of the dash, and it controls the remote slot lock.
Built-in immobilizer function operates when the keyless access function is off.
Electric Steering Lock
The electric steering lock control unit is built into the electric steering lock, and it controls the steering lock motor. When the remote code is identified, the electric steering lock control unit unlocks the steering lock by controlling the steering lock motor.
Fail-Safe Function
The system has a fail-safe function. If any malfunction occurs, the keyless access system indicator and the malfunction indicator lamp (MIL) in the gauge come on.
Self-Diagnostic Function
The system also has a self-diagnostic function.
Power Mode Control Function
The keyless access system has four power modes: OFF, ACC, ON, and START. The power modes can be changed by pressing the engine start/stop button. The power mode changes to START mode any time the engine start/stop button is pressed while also pressing the brake pedal.
- OFF and START mode: Indicator (A) in the engine start/stop button is off.
- ACC mode: Indicator in the engine start/stop button comes on green.
- ON mode: Indicator in the engine start/stop button remains green when the engine is not running (If the engine is running, the indicator goes off).
NOTE: If the keyless access system mode switch is OFF, Insert the remote into the remote slot, and press the engine start/stop button to select the mode.
Multi-Information Display Indication Pattern
NOTE: Some examples of indication patterns are shown.
Emergency Engine Stop Function
If you must stop the engine in an emergency situation, do either of the following:
- Press and hold the engine start/stop button.
- Press the engine start/stop button three times continuously.
Immobilizer Function
The vehicle is equipped with a Type VII (GEN 5) immobilizer system that disables the vehicle unless a programmed remote is used.
This system consists of a transponder built into the remote, a remote slot control unit, the driver's MICU (has a built-in imoes unit), an immobilizer indicator, and the PCM.
When the remote (programmed by the HDS) is inserted into the remote slot and the engine start/stop switch is pressed to select the ON mode, the remote slot control unit sends power to the transponder. The transponder then sends a coded signal back to the remote slot control unit, which then sends a coded signal to the PCM and the driver's MICU (imoes unit). The PCM and driver's MICU (imoes unit) identify this coded signal, then voltage is supplied to the fuel pump.
If the wrong remote is used or the code was not received or recognized by the units, the indicator flashes once, then it blinks until the OFF mode is selected by pressing the engine start/stop button. When the OFF mode is selected by pressing the engine start/stop button, the indicator blinks ten times to signal that unit has reset correctly, then the indicator goes off.