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Home >> Acura >> 2016 >> MDX Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Security System / Keyless Entry System - Testing & Troubleshooting (Except Hybrid) >> Description & Operation >> Keyless/Power Door Locks/Security System Description - Control/Function
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Keyless/Power Door Locks/Security System Description - Control/Function

Door Lock Control 

The door lock control function allows the MICU to detect the status of various switch signals and control each actuator in order to lock and unlock doors.

GHH326566Courtesy of HONDA, U.S.A., INC.

Keyless Door Lock Control 

The remote can transmit a lock or unlock signal to the keyless access/TPMS control unit, which sends the keyless request to the MICU using the B-CAN network, then the MICU controls the door lock actuator by B-CAN signal and various switch signal. The customization menu can also set the relock timer value.

GHH326567Courtesy of HONDA, U.S.A., INC.

Key Lockout Prevent Function 

The lockout 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.

GHH326568Courtesy of HONDA, U.S.A., INC.

Automatic Door Lock/Unlock Control 

The automatic door lock control function allows the MICU to detect the status of B-CAN signals and various switch signals and control each actuator in order to automatically lock all the doors when the vehicle speed exceeds 15 km/h (9 mph). Or, it allows the MICU to detect that the shift position is out of the P position and control actuator to automatically lock all the doors. The locking method can be set as non-link, link to vehicle speed, link to shift position and link to engine start/stop switch by customizing function.

GHH326569Courtesy of HONDA, U.S.A., INC.

Security Control 

When the security alarm is set, the MICU sends the security set signal using B-CAN. You can select the use of security control through the customize function.

GHH326570Courtesy of HONDA, U.S.A., INC.

Security system operating term 

Start setting
  • Lock the door by driver's door key cylinder using a mechanical key
  • Lock the door by remote
  • Lock the door by pressing the door outer handle lock switch while carrying a remote or the tailgate lock switch while carrying a remote
  • Operate a keyless relock
Cancellation
  • Unlock the door by driver's door key cylinder using a mechanical key
  • Unlock the door by remote
  • Unlock the door by touching the door touch sensor while carrying a remote or the tailgate outer handle switch while carrying a remote
  • Press the power switch bring a remote
Setting conditions (related systems are normally operated)
  • Door switch OFF (Door close)
  • Door unlock knob switch OFF (Lock)
  • Full latch switch OFF (Tailgate close)
  • Driver's door key cylinder switch OFF
  • Security hood switch ON (Hood close)
  • Vehicle OFF (LOCK) mode
Start the alarm When any of the monitoring switch signals is input without receiving the signal for cancelling setting
Cancel the alarm Compliant with the conditions for cancelling setting

Security Setting 

When the security alarm is set, the MICU sends the security set signal using B-CAN. When the gauge control module receives the security set signal from the MICU, the security indicator flashes to indicate the system is arming.

GHH326571Courtesy of HONDA, U.S.A., INC.

Security Alarm 

With the security system armed, manually opening the hood or tailgate, or moving an interior lock knob to the unlock position activates the security alarm. Alternatively, the security alarm sounds and, the headlights low beam, position lights, taillights, license plate lights, and side marker lights blinks, repeating this alarm (one cycle is 120 seconds) 10 times at maximum. Even if you remove the 12 volt battery, the alarming state cannot be changed. The alarm starts again when reinstalling the 12 volt battery.

GHH326572Courtesy of HONDA, U.S.A., INC.

Security Answer Back Control 

When using the remote, the MICU provides an answer back function to alert the client that the MICU received a lock or unlock command from the remote. When the MICU receives a lock signal, it sends signals once to the parking lights, taillights, license plate lights, side marker lights, keyless/power tailgate outside buzzer. When the MICU receives an unlock signal, the MICU sends signals two times to the parking lights, taillights, license plate lights, side marker lights, and keyless /power tailgate outside buzzer.

GHH326573Courtesy of HONDA, U.S.A., INC.

When the MICU receives a lock signal, the MICU sends signals once to the position lights, taillights, license plate lights, side marker lights, and keyless/power tailgate outside buzzer will sound once when you press the lock button again within 5 seconds.

GHH326574Courtesy of HONDA, U.S.A., INC.

When the MICU receives an unlock signal, the MICU sends signals two times to the position lights, taillights, license plate lights, side marker lights.

GHH326575Courtesy of HONDA, U.S.A., INC.