Nissan Altima L32. Manual - part 496

COOLING FAN CONTROL

EC-1105

< FUNCTION DIAGNOSIS >

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1.

Knock sensor (bank 2)

2.

Knock sensor (bank 1)

3.

PNP switch (CVT models)

4.

PNP switch (M/T models)

5.

Battery

6.

IPDM E/R

7.

ECM

8.

Refrigerant pressure sensor
(shown with front grill removed)

9.

Accelerator pedal

: Vehicle front

ALBIA0104ZZ

EC-1106

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COOLING FAN CONTROL

Component Description

INFOID:0000000004361985

1.

ASCD brake switch

2.

Stop lamp switch

3.

Brake pedal 

4.

ASCD steering switch

5.

ASCD clutch switch (M/T models)

6.

Clutch pedal

ALBIA0105ZZ

Component

Reference

Camshaft position sensor (PHASE)

EC-1296, "Description"

Crankshaft position sensor (POS)

EC-1292, "Description"

Cooling fan motor

EC-1473, "Description"

Engine coolant temperature sensor

EC-1210, "Description"

Refrigerant pressure sensor

EC-1503, "Description"

ELECTRONIC CONTROLLED ENGINE MOUNT

EC-1107

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ELECTRONIC CONTROLLED ENGINE MOUNT

System Diagram

INFOID:0000000004361986

System Description

INFOID:0000000004361987

INPUT/OUTPUT SIGNAL CHART

*: This signal is sent to the ECM via the CAN communication line.

SYSTEM DESCRIPTION

The ECM controls the engine mount operation corresponding to the engine speed. The control system has a

2-step control [Soft/Hard]

ELECTRONIC CONTROLLED ENGINE MOUNT LINE DRAWING

JMBIA1970GB

Sensor

Input signal to ECM

ECM function

Actuator

Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)

Engine speed

Engine mount 
control

Electronic controlled en-
gine mount control solenoid 
valve

Unified meter and A/C amp.

Vehicle speed*

Vehicle condition

Engine mount control

Engine speed: Below 950 rpm

Soft

Engine speed: Above 950 rpm

Hard

EC-1108

< FUNCTION DIAGNOSIS >

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ELECTRONIC CONTROLLED ENGINE MOUNT

1.

Power valve actuator 1

2.

VIAS control solenoid valve 1

3.

VIAS control solenoid valve 2

4.

Power valve actuator 2

5.

Intake manifold collector

: From next figure

JMBIA0182ZZ