NISSAN TIIDA 2007 Service Repair Manual

EC-432
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
CAN COMMUNICATION
CAN COMMUNICATION
System DescriptionINFOID:0000000001693479
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Refer to LAN-33, "
CAN Communication Signal Chart", about CAN communication for detail.

COOLING FAN CONTROL
EC-433
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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COOLING FAN CONTROL
System DiagramINFOID:0000000001693480
System DescriptionINFOID:0000000001693481
INPUT/OUTPUT SIGNAL CHART
*1: The ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to ECM through CAN communication line.
SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pres-
sure, air conditioner ON signal. Then control system has 3-step control [HIGH/LOW/OFF].
Cooling Fan Operation
JMBIA0177GB
Sensor Input signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
1
Cooling fan
controlIPDM E/R
↓
Cooling fan relay
↓
Cooling fan motor Battery
Battery voltage*
1
Combination meter
Vehicle speed*2
Engine coolant temperature sensor Engine coolant temperature
BCM
Air conditioner ON signal*
2
Refrigerant pressure sensor Refrigerant pressure

EC-434
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
COOLING FAN CONTROL
Models with A/C
Models without A/C
Cooling Fan Relay Operation
The ECM controls cooling fan relays through CAN communication line.
MBIB1451E
JMBIA0821GB
Cooling fan speedCooling fan relay
123
Stop (OFF) OFF OFF OFF
Low (LOW) ON OFF OFF
High (HI) OFF ON ON

COOLING FAN CONTROL
EC-435
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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Component Parts LocationINFOID:0000000001693482
1. Ignition coil (with power transistor)
and spark plug2. Intake valve timing control solenoid
valve3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake air
temperature sensor)11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control
solenoid valve
PBIB2939E

EC-436
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
COOLING FAN CONTROL
1. Mass air flow sensor
(with intake air temperature sensor)2. Engine coolant temperature sensor 3. Electric throttle control actuator
4. Camshaft position sensor (PHASE) 5. Ignition coil (with power transistor) 6. Fuel injector
7. EVAP canister purge volume control
solenoid valve
Vehicle front
PBIB2940E

COOLING FAN CONTROL
EC-437
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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1. ECM harness connectors 2. ECM 3. IPDM E/R
4. Fuel pump fuse (15A) 5. Intake valve timing control solenoid
valve6. Knock sensor
7. Refrigerant pressure sensor 8. PCV valve
Vehicle front
PBIB2941E

EC-438
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
COOLING FAN CONTROL
1. Exhaust manifold 2. Heated oxygen sensor 1 3. Heated oxygen sensor 2
4. Heated oxygen sensor 2 harness
connector
Vehicle front
PBIB2942E
PBIB2943E

COOLING FAN CONTROL
EC-439
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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1. Cooling fan motor harness connec-
tor2. Crankshaft position sensor 3. Stop lamp switch
4. Brake pedal 5. Accelerator pedal position sensor
harness connector6. Accelerator pedal position sensor
7. Accelerator pedal 8. Fuel level sensor unit and fuel pump
harness connector (view with in-
spection hole cover removed)9. Fuel pressure regulator
10. Fuel pump
AWBIA0044ZZ

EC-440
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
COOLING FAN CONTROL
Component Description
INFOID:0000000001693483
1. ASCD steering switch 2. MAIN switch 3. CANCEL switch
4. SET/COAST switch 5. RESUME/ACCELERATE switch 6. ASCD brake switch
7. Stop lamp switch 8. ASCD clutch switch 9. Clutch pedal
ALBIA0273ZZ
Component Reference
Camshaft position sensor (PHASE)EC-520, "
Description"
Crankshaft position sensor (POS)EC-516, "Description"
Cooling fan motorEC-593, "Description"
Engine coolant temperature sensorEC-492, "Description"
Refrigerant pressure sensorEC-632, "Description"

EVAPORATIVE EMISSION SYSTEM
EC-441
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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EVAPORATIVE EMISSION SYSTEM
System DiagramINFOID:0000000001693484
EVAPORATIVE EMISSION LINE DRAWING
PBIB3039E