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 terms
(Trouble diagnosis content)
DTC detection condition
P2758
TCC PRESSURE CONT SOLENOID
(Torque Converter Clutch Pressure Control Solenoid Control Circuit Stuck On)
Diagnosis condition
When all of the following conditions are satisfied:
TCM power supply voltage: More than 11 V
Lockup value learning is completed (After ignition switch ON)
Signal
—
Threshold
Coast capacity learning value: Less than –0...
..
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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