Nissan Murano: System Description / Component Parts. Automatic Emergency Braking System

Nissan Murano (Z52) 2015-2024 Service Manual / Brakes / Brake Control System :: Automatic Emergency Braking / System Description / Component Parts. Automatic Emergency Braking System

Component Parts Location

A. Center of windshield behind the auto anti-dazzling inside mirror B.

Center of instrument panel

(view with center console removed) 		C. Engine room right side
D. Front bumper (center) E. Engine room left side F. Brake pedal area
No. Component Function
1.

Combination meter

(Information display, AEB indicator lamp, buzzer)

  • Description: Refer to Combination Meter.

  • System display and warning: Refer to Menu Displayed by Pressing Each Switch.

Refer to Component Parts Location for detailed component location.
2. TCM (Transmission Control Module)

TCM transmits the signal related to CVT control to ADAS control unit via CAN communication.

Refer to Component Parts Location for detailed component location.
3. ECM (Engine Control Module)

  • ECM transmits the accelerator pedal position signal, brake pedal position switch signal, stop lamp switch signal, ICC steering switch signal, etc., to ADAS control unit via CAN communication.

  • ECM controls the electric throttle control actuator based on the engine torque demand received from the ADAS control unit via CAN communication.

Refer to Component Parts Location for detailed component location.
4. Driver assistance buzzer Refer to Driver Assistance Buzzer.
5. Lane camera unit (if equipped) Refer to Lane Camera Unit.
6. ADAS (Advanced Driver Assistance System) control unit

Refer to ADAS Control Unit.

Refer to Component Parts Location for detailed component location.
7. ABS (Anti-lock Braking System) actuator and electric unit (control unit)

  • ABS actuator and electric unit (control unit) transmits the Nissan Murano vehicle speed signal (wheel speed), stop lamp signal and VDC/TCS/ABS system operation condition to ADAS control unit via CAN communication.

  • ABS actuator and electric unit (control unit) controls the brake based on a brake fluid pressure control signal received from the ADAS control unit via CAN communication.

Refer to Component Parts Location for detailed component location.
8. Distance sensor Refer to Distance Sensor .
9. ICC (Intelligent Cruise Control) brake hold relay (if equipped) Refer to ICC Brake Hold Relay.
10. Brake pedal position switch Refer to Brake Pedal Position Switch/Stop Lamp Switch.
11. Stop lamp switch
ADAS Control Unit

  • ADAS control unit is installed below the center console assembly.

  • Communicates with each control unit via CAN communication and ITS communication.

  • ADAS control unit with gateway function is for system control signals that are transmitted to each control unit between CAN communication and ITS communication by the ADAS control unit.

  • ADAS control unit controls each system, based on ITS communication signals and CAN communication signals from each control unit.

Distance Sensor (ICC Sensor)

  • Distance sensor is installed behind the front bumper and detects a vehicle ahead using millimeter waves.

  • Distance sensor detects radar reflected from a Nissan Murano vehicle ahead by irradiating radar forward and calculates a distance from the vehicle ahead and relative speed, based on the detected signal.

  • Distance sensor transmits the presence/absence of a Nissan Murano vehicle ahead and the distance from the vehicle to ADAS control unit via ITS communication.

Brake Pedal Position Switch / Stop Lamp Switch

  • Brake pedal position switch is installed at the upper part of the brake pedal and detects a brake operation performed by the driver.

  • Brake pedal position switch is turned OFF when depressing the brake pedal.

  • Brake pedal position switch signal is input to ECM. Brake pedal position switch signal is transmitted from ECM to ADAS control unit via CAN communication.

  • Stop lamp switch is installed at the lower part of the brake pedal and detects a brake operation performed by the driver.

  • Stop lamp switch is turned ON, when depressing the brake pedal.

  • Stop lamp switch signal is input to ECM and ABS actuator and electric unit (control unit). Stop lamp switch signals are transmitted from ECM and ABS actuator and electric unit (control unit) to ADAS control unit via CAN communication.

ICC Brake Hold Relay

  • ICC brake hold relay is installed in the fuse, fusible link and relay box.

  • When the brake is activated by the ICC system, the ICC brake hold relay turns ON the stop lamp by bypassing the circuit of the stop lamp according to a signal transmitted from the ADAS control unit.

Warning Buzzer

  • The warning buzzer is installed behind the instrument lower panel LH.

  • When a warning buzzer signal is received from the ADAS control unit, the buzzer sounds.

Lane Camera Unit

  • Lane camera unit is installed to windshield and detects the lane marker in travel lane and pedestrian ahead.

  • Transmits the signal to ADAS control unit via chassis communication.

    System Description

    ..

    System

    System Description SYSTEM DIAGRAMADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEMInput Signal Item Transmit unit Signal name Description ECM CAN communication Closed throttle position signal Receives idle position state (ON/OFF) Accelerator pedal position signal Receives accelerator pedal position (angle) Engine speed signal Receives engine speed Stop lamp switch signal Receives an operational state of the brake pedal Brake pedal position switch signal Receives an operational state of the brake pedal TCM CAN communication Input speed signal Receives the number of revolutions of input shaft Current gear position signal Receives a current gear position Shift position signal Receives a selector lever position Output shaft revolution signal Receives the number of revolutions of output shaft ABS actuator and electric unit (control unit) CAN communication ABS malfunction signal Receives a malfunction state of ABS ABS operation signal Receives an operational state of ABS ABS warning lamp signal Receives an ON/OFF state of ABS warning lamp TCS malfunction signal Receives a malfunction state of TCS TCS operation signal Receives an operational state of TCS VDC OFF switch signal Receives an ON/OFF state of VDC VDC malfunction signal Receives a malfunction state of VDC VDC operation signal Receives an operational state of VDC Nissan Murano Vehicle speed signal (ABS) Receives wheel speeds of four wheels Yaw rate signal Receives yaw rate acting on the Nissan Murano vehicle Stop lamp switch signal Receives an operational state of the brake pedal Steering angle sensor CAN communication Steering angle sensor malfunction signal Receives a malfunction state of steering angle sensor Steering angle sensor signal Receives the number of revolutions, turning direction of the steering wheel Steering angle speed signal Receives the turning angle speed of the steering wheel Distance sensor ITS communication Distance sensor signal Receives detection results, such as the presence or absence of a leading Nissan Murano vehicle and distance from the vehicle Lane camera unit Chassis CAN communication Pedestrian ahead signal Receives detection results of pedestrian ahead of Nissan Murano vehicle Vehicle ahead signal Receives detection results of Nissan Murano vehicle ahead Output Signal Item Reception unit Signal name Description ABS actuator and electric unit (control unit) CAN communication Brake fluid pressure control signal Transmits a brake fluid pressure control signal to activates the brake Combination meter CAN communication Meter display signal Nissan Murano Vehicle ahead detection indicator signal Transmits a signal to display a state of the system on the information display AEB/I-FCW system display signal AEB warning signal Distance sensor ITS communication Nissan Murano Vehicle speed signal Transmits a vehicle speed calculated by the ADAS control unit Steering angle sensor signal Transmits a steering angle sensor signal received from the steering angle sensor Warning buzzer Warning buzzer signal Activates the warning buzzer ICC brake hold relay ICC brake hold relay drive signal Activates the brake hold relay and turns ON the stop lamp DESCRIPTION Automatic Emergency Braking (AEB) system can assist the driver when there is a forward collision with the Nissan Murano vehicle ahead in the traveling lane...

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    The autolight system allows the headlights to turn on and off automatically. The autolight system can:

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