Keyless Access System Description - Control/Function (2013-15)

Smart Entry Function 

The keyless access control unit detects the input signal of the door outer handle touch sensor or the outer handle lock switch, and authenticates 2-way communication with the remote. Then the keyless access control unit sends a door lock/unlock signal and an answer back signal to the MICU via B-CAN line.

Courtesy of HONDA, U.S.A., INC.

Keyless Entry Function 

The keyless access control unit receives the keyless transmitter signal from the remote. The keyless access control unit authenticates the RF signal, and sends a door lock/unlock signal and trunk lid unlock signal to the MICU via the B-CAN line.

Courtesy of HONDA, U.S.A., INC.

Remote Search Function 

Determines if the remote is present inside the vehicle during some operation or function.

Key Lockout Prevent Function 

The lockout prevent function observes the key switch signal input. If the input is ON (remote in the vehicle), the system will not lock the doors. If the driver manually locks and closes the doors with a remote in the vehicle (input ON), the MICU energizes the driver's door actuator and unlocks the driver's door.

Courtesy of HONDA, U.S.A., INC.

Lighting and Indicator Function 

The keyless access control unit controls the power switch indicator, displays information in the multi-information display (MID), and illuminates the keyless access system indicators in the gauge control module.

Backup Communication Function 

When key authentication between remote and keyless access control unit is not possible because of a system abnormality or a drop of the battery voltage of the remote, the immobilizer function can be canceled by pressing the engine start/stop switch once and bringing the remote close to the engine start/stop switch while the indicator of the engine start/stop switch is flashing. This causes the built-in immobilizer receiver of the engine start/stop switch to receive the immobilizer signal and to send the immobilizer signal to the keyless access control unit.

Courtesy of HONDA, U.S.A., INC.

Immobilizer Function 

The immobilizer function is deactivated by mutual communication between the keyless access control unit, the PCM, and the MICU via the S-NET line.

Alarm Function 

Detects the door open or close with the vehicle in the ACCESSORY/ON mode. When the remote is taken out of the vehicle, keyless buzzer will sound and multi-information display (Only at the vehicle in the ON mode) will show a warning. Before remote battery level falls to the point where remote cannot be detected, multi-information display (MID) will show a warning and alarm will sound.

Registration Facility 

The keyless access control unit can store up to 6 remotes with the HDS.

Fault Diagnosis Function 

The system has a fault diagnosis function. If any malfunction occurs, the keyless access indicator comes on in the gauge control module.

Panic Function 

When you press the PANIC button on the remote, the keyless access control unit sends a signal to the MICU via the B-CAN to sound the horn and activate the exterior lights.