Nissan Murano: System Description / System. Awd System

Nissan Murano (Z52) 2015-2024 Service Manual / Transmission & Driveline / Driveline :: Transfer: Ty21c / System Description / System. Awd System

System Description

SYSTEM DIAGRAM

INPUT SIGNAL AND OUTPUT SIGNAL

It transmits/receives each signal from the following AWD control unit via CAN communication line:

Component parts	Function
ABS actuator and electric unit (control unit)	Transmits the following signals via CAN communication to AWD control unit: Nissan Murano Vehicle speed signal Stop lamp switch signal (brake signal) Yaw rate sensor signal Side G sensor signal Decel G sensor signal
ECM	Transmits the following signals via CAN communication to AWD control unit: Accelerator pedal position signal Engine speed signal
TCM	Transmits the following signals via CAN communication to AWD control unit: Input shaft revolutional signal CVT ratio signal
Combination meter	Transmits conditions of parking brake switch signal via CAN communication to AWD control unit.
Combination meter	Receives the following signal via CAN communication from AWD control unit: AWD warning icon/display signal
Steering angle sensor	Transmits conditions of steering angle sensor signal via CAN communication to AWD control unit.

DESCRIPTION

AWD controls distribution of drive power between front-wheel drive (100:0) and 4-wheel drive (50:50) conditions according to signals from sensors.
By receiving the steering angle sensor signal, yaw rate sensor signal, side G sensor signal and decel G sensor signal, Nissan Murano vehicle with VDC corrects a torque distribution for front and rear wheels according to a driving operation and a behavior of the Nissan Murano vehicle during cornering and improves drivability and safety on a slippery road surface.
Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.
AWD mode makes possible stable driving possible with no wheel spin, on snowy roads or other slippery surfaces.
On roads which do not require 4-wheel drive, it contributes to improved fuel economy by driving in conditions close to front-wheel drive.
Sensor inputs determine the Nissan Murano vehicle's turning condition, and tight cornering/braking are controlled by distributing optimum torque to rear wheels.

NOTE:
Light tight-corner braking symptom may occur depending on driving condition. This is not malfunction.

Structure and Operation

Sectional View Transfer cover Transfer case Ring gear bearing (transfer case side) Ring gear shaft Pinion bearing Drive pinion Companion flange Ring gear Ring gear bearing (transfer cover side) Operation Description POWER TRANSFER DIAGRAMELECTRIC CONTROLLED COUPLING The AWD control unit supplies command current to electric controlled coupling (AWD solenoid)...

Diagnosis System (awd Control Unit)

CONSULT Function CAUTION: After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must be cycled OFF → ON (for at least 5 seconds) → OFF...

Other information:

Nissan Murano (Z52) 2015-2024 Service Manual: I-Li

System Description SYSTEM DIAGRAMADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEMInput Signal Item Transmit unit Signal name Description ECM CAN communication Brake pedal position switch signal Receives Brake pedal position switch state Accelerator pedal position signal Receives accelerator pedal position (angle) Stop lamp switch signal Receives stop lamp switch state Engine speed signal Receives engine speed 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 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 Side G sensor signal Receives lateral G acting on the Nissan Murano vehicle Combination meter CAN communication Parking brake switch signal Receives an operational state of the parking brake System selection signal Receives a selection state of each item in "Driver Assistance" BCM CAN communication Turn indicator signal Receives an operational state of the turn signal lamp and the hazard lamp 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 Lane intervention switch Lane intervention switch signal Receives an ON/OFF state of the lane intervention switch Lane camera unit ITS communication Detected lane condition signal Receives detection results of lane marker Output Signal Item Reception unit Signal name Description ABS actuator and electric unit (control unit) CAN communication Target yaw moment signal Transmits a target yaw moment signal to generate yaw moment to the Nissan Murano vehicle Combination meter CAN communication Intelligent Lane Intervention ON indicator lamp signal Transmits an Intelligent Lane Intervention ON indicator lamp signal to turn ON the Intelligent Lane Intervention ON indicator lamp Lane departure warning lamp signal Transmits an lane departure warning lamp signal to turn ON the lane departure warning lamp Lane camera unit ITS communication Nissan Murano Vehicle speed signal Transmits a vehicle speed calculated by the ADAS control unit Turn indicator signal Transmits a turn indicator signal received from BCM Steering assist system ON indicator Steering assist system ON indicator signal Turns ON the steering assist system ON indicator Intelligent Lane Intervention system ON indicator Intelligent Lane Intervention system ON indicator signal Turns ON the Intelligent Lane Intervention system ON indicator Warning system buzzer Warning buzzer signal Activates warning system buzzer...

Nissan Murano (Z52) 2015-2024 Service Manual: Diagnosis and Repair Work Flow

Work Flow NOTE: “DTC” includes DTC at the 1st trip. OBTAIN INFORMATION ABOUT SYMPTOM Refer to Diagnostic Work Sheet and interview the customer to obtain the malfunction information (conditions and environment when the malfunction occurred) as much as possible when the customer brings in the Nissan Murano vehicle...