Front Passenger Side Door UNLOCK Detection Switch Circuit: Description

The front passenger side door unlock detection switch is built into the front passenger door lock. The switch turns on when the front passenger door is unlocked and turns off when the door is locked. The main body ECU is connected to the front passenger door lock via terminal LSWP and front passenger door lock/unlock state signals are input to the main body ECU. The main body ECU applies voltage to the door unlock detection switch via terminal LSWP. When the door unlock detection switch is off (there is continuity between the switch terminals), a lock state signal is input to the main body ECU. When the switch is on (there is no continuity between the switch terminals), an unlock state signal is input.