Nissan Murano: System / Cooling Fan Control
System Description
SYSTEM DIAGRAM

SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pressure, air conditioner ON signal. Then control system has 4 -step control [HIGH/MIDDLE/LOW/OFF].
Cooling Fan Operation

Cooling Fan Relay Operation
The ECM controls cooling fan relays through CAN communication line.
| Cooling fan speed | Cooling fan relay |
| 1 | 2 | 3 |
| Stop (OFF) |
OFF |
OFF |
OFF |
| Low (LOW) |
ON |
OFF |
OFF |
| Middle (MID) |
OFF |
ON |
OFF |
| High (HI) |
OFF |
ON |
ON |
System Description
SYSTEM DIAGRAMBASIC ASCD SYSTEMRefer to Owner's Manual for ASCD operating instructions.Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed without depressing accelerator pedal...
System Description
SYSTEM DIAGRAMSYSTEM DESCRIPTIONThe ECM controls the engine mount operation corresponding to the engine speed. The control system has a 2-step control [Soft/Hard] Vehicle condition Engine mount control
Engine speed: Below 950 rpm
Soft
Engine speed: Above 950 rpm
Hard
ELECTRONIC CONTROLLED ENGINE MOUNT LINE DRAWING
Electronic controlled engine mount control solenoid valve
Intake manifold collector
: From next figure
Front electronic controlled engine mount
Rear electronic controlled engine mount
: To previous figure
NOTE:
Do not use soapy water or any type of solvent while installing vacuum hose...
Other information:
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen items
(Trouble diagnosis content) DTC detection condition
C1B85-4B
POWER SUPPLY CIR
(Power supply circuit)
Diagnosis condition
When engine is running
When Automatic Emergency Braking or LDW system is ON
Signal (terminal)
—
Threshold
Distance sensor judges high temperature abnormality
Diagnosis delay time
1 second or less
POSSIBLE CAUSE
Temperature around the distance sensor (ICC Sensor) becomes high
ADAS control unit
FAIL-SAFEThe following systems are canceled:
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode
Automatic Emergency Braking (AEB) with pedestrian detection
Automatic Emergency Braking (AEB)
Intelligent Forward Collision Warning (I-FCW)
Lane Departure Warning (LDW)
Intelligent Lane Intervention (I-LI)
Confirmation Procedure
DTC CONFIRMATION PROCEDUREPERFORM DTC CONFIRMATION PROCEDURE
CONSULT
Turn the ignition switch OFF...
The autolight system allows the headlights
to turn on and off automatically. The autolight
system can:
Turn on the headlights, front parking,
tail, license plate and instrument panel
lights automatically when it is dark.
Turn off all the lights (except daylight
running lights) when it is light...
Categories

Your vehicle has two types of security systems:
Vehicle security system
NISSAN Vehicle Immobilizer System
The vehicle security system provides visual
and audible alarm signals if someone
opens the doors, liftgate or the hood when
the system is armed. It is not, however, a
motion detection type system that activates
when a vehicle is moved or when a
vibration occurs.
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