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Home >> Infiniti >> 2011 >> FX35 RWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door & Lock - With Automatic Back Door -- FX35/FX50 >> System Description >> Automatic Back Door System >> Component Description

Component Description

AUTOMATIC BACK DOOR SYSTEM COMPONENTS FUNCTION CHART

Item Function
Automatic back door control unit Controls the automatic back door system
BCM Transmits and receives signals to the automatic back door control unit
ABS actuator and electric unit Transmits vehicle speed signal to CAN communication line
Unified meter and A/C amp. Transmits vehicle speed signal to CAN communication line
Automatic back door warning buzzer Warns the user of the automatic back door condition and inappropriate operations with the buzzer sounds
Touch sensor LH/RH During back door close operation, the touch sensor detects any trapped foreign material
Back door opener switch Detects if back door opener switch is press/release
Back door request switch Detects if back door request switch is press/release
Automatic back door switch Detects if automatic back door switch is press/release
Automatic back door main switch Detects if automatic back door main switch is press/release
Automatic back door close switch Detects if automatic back door close switch is press/release
Back door lock assembly Back door closure motor, half latch switch, open switch, close switch and back door switch are installed
  • Closure motor: Inputs open/close signal from automatic back door control unit and activates the back door auto closure operation
  • Half latch switch: Starts the closure motor close operation
  • Open switch: Stops the closure motor open operation
  • Close switch: Stops the closure motor close operation
  • Back door switch: Inputs back door open/close condition to BCM
Spindle unit Encoder and spindle motor are installed
  • Encoder: Automatic back door control unit receives the pulse signals from encoders A and B that occurred due to synchronization with the back door operation. The automatic back door control unit calculates the back door position, operation direction, and operation speed according to the received pulse signals
  • Spindle motor: Inputs open/close signal from automatic back door control unit and activates the automatic back door open/close operation
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