Quick Start Guide

Updated on Mar 4, 2026

Precision Door Activation Detection for Automotive Testing.

The Racelogic Door Open Trigger Switch (RLACS345) is a compact, highly responsive sensor designed for detecting vehicle door opening status with precision and reliability. Ideal for automotive testing and validation environments, it offers a non-invasive way to log door open/close events in real time.

It is used within the VBOX Dooring solution, integrating seamlessly with VBOX or third-party data loggers. It provides clear, definitive signals when a vehicle door is opened during consumer and development testing.

Door pressure sensor installed
  • Simple Integration
    Easily installed between the vehicle door and body – no permanent modifications required.
     
  • Digital Output
    Integrated in-line resistors allows the sensor to output a clear 0 V (closed), supply voltage* (open) signal for straightforward digital logging.
    *Amplitude of the supply voltage will determine the ‘on’ state voltage.
     
  • Robust & Flexible Design
    The slim, flexible form factor allows it to conform to a range of door seals and geometries.
     
  • Real-Time Feedback 
    Provides instant status output when used in combination with VBOX Test suite.
     
  • Versatile Application
    Can be used to detect not only door status, but also bonnet, boot or other panel movement.
DescriptionValues
Output TypeLinear voltage dependent on power source.
SizeTape switch length = 130 mm.Cable length = 3 m.
Wire ColourFunction
RedPower
BlackGround
YellowSignal
BlueSignal Ground
  1. Wire the black wire to the ground pin (15).
  2. Wire the red wire to the power pin (9).
  3. Wire the yellow wire to a positive pin in an available Isolated Channel pair.
  4. Wire the blue wire to a negative pin in an available Isolated Channel pair. 

    In this example, we are using channel 4 for the signal wires.

You can find the pin information for the Analogue Input connector on VBOX 4 here.

Dooring Sensors wired to 15-pin analogue input connector
  1. Wire the black wire to the ground pin (15).
  2. Wire the red wire to the power pin (9).
  3. Wire the yellow wire to a positive pin in an available Isolated Channel pair.
  4. Wire the blue wire to a negative pin in an available Isolated Channel pair. 

    In this example, we are using channel 4 for the signal wires.

You can find the pin information for the Analogue Input connector on VBOX 4 here.

Dooring Sensors wired to 15-pin analogue input connector
  1. Wire the black wire to the ground pin (15).
  2. Wire the red wire to the power pin (14).
  3. Wire the yellow wire to a positive pin in an available Isolated Channel pair.
  4. Wire the blue wire to a negative pin in an available Isolated Channel pair. 

    In this example, we are using channel 1 for the signal wires.

You can find the pin information for the Analogue Input connector on VBOX 3i here.

Dooring Sensor wired to analogue input connector_25pin
  1. Wire the black wire to the ground pin (15).
  2. Wire the red wire to the power pin (14).
  3. Wire the yellow wire to a positive pin in an available Isolated Channel pair.
  4. Wire the blue wire to a negative pin in an available Isolated Channel pair. 

    In this example, we are using channel 1 for the signal wires.

You can find the pin information for the Analogue Input connector on VBOX 3i here.

Dooring Sensor wired to analogue input connector_25pin