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: U1010 Control Unit(can)

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Nissan Murano (Z52) 2015-2024 Service Manual: Electric Resistance Spot Welding

Principles of Spot Welding Resistance spot welding is a kind of electric resistance welding. It is classified as pressure welding. Two or three sheets of metal are overlapped and pressed, and current is passed through the mating surfaces. As the current flows, the metals melt due to Joule heat at the mating surfaces and are joined by the pressure...