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Home >> Acura >> 2021 >> TLX Base >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security System / Keyless Entry System - Testing & Troubleshooting >> Description and Operation >> Keyless/Power Door Locks/Security System Description - Components

Keyless/Power Door Locks/Security System Description - Components

Door Lock Switches 

The door lock switches are integrated into, the power window master switch, and the front passenger's power window switch.

Door Lock Knob Switch/Door Lock Actuator/Driver's Door Key Cylinder Switch 

The door lock knob switch and the door lock actuator are built into the door latch of each door. The door lock knob switch detects the lock and unlock states of the lock mechanism. The door lock actuator moves the lock mechanism back and forth between the lock and unlock position. The actuator receives lock and unlock commands from the body control module. The driver's door key cylinder switch is included in the driver's door latch assembly. In conjunction with the key cylinder, it detects the lock/unlock of the key cylinder.

Front Door Latch 

GHH562662Courtesy of HONDA, U.S.A., INC.
  Door Key Cylinder Switch* Door Lock Knob Switch
LOCK UNLOCK LOCK * UNLOCK
LOCK ON OFF ON OFF
Neutral OFF OFF --- ---
UNLOCK OFF ON OFF ON

*: Only driver's door

Rear Door Latch 

GHH562663Courtesy of HONDA, U.S.A., INC.
  Door Lock Knob Switch
LOCK UNLOCK
LOCK --- OFF
UNLOCK --- ON

Door Switch 

The door switch is built into the door latch of each door. The door switch is a ON/OFF type switch that detects the opening/closing of the door.

Front 

GHH562664Courtesy of HONDA, U.S.A., INC.

Rear 

GHH562665Courtesy of HONDA, U.S.A., INC.
Door Door Switch
Open ON
Close OFF

Trunk Lid Release Actuator/Trunk Lid Latch Switch 

The body control module receives an ON signal from the trunk lid opener switch or the trunk lid open switch, then the body control module outputs a signal to the trunk lid release actuator, and the trunk lid release actuator unlocks the trunk latch. The trunk lid latch switch is the ON/OFF switch that detects the opening/closing of the trunk. If the trunk lid release actuator is abnormal, the trunk lid may be opened manually with the release lever.

GHH562666Courtesy of HONDA, U.S.A., INC.
Trunk Lid Trunk Lid Latch Switch
Open ON
Close OFF

Hood Latch Switch 

The hood latch switch is built into the hood latch and it detects the opening/closing of the hood.

GHH562667Courtesy of HONDA, U.S.A., INC.
Hood Hood Latch Switch
Open OFF
Close ON