NISSAN TIIDA 2011 Service Repair Manual

AIR CONDITIONING CUT CONTROLEC-67
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1. Air fuel ratio (A/F) sensor 1 2. Three way catalyst (Manifold) 3. Heated oxygen sensor 2
4. Three way catalyst (Under floor) 5. Muffler
Vehicle front
1. Exhaust manifold 2. Air fuel ratio (A/F) sensor 1 3. Heated oxygen sensor 2
4. Heated oxygen sensor 2 harness connector
Vehicle front
JMBIA2192ZZ
PBIB2943E
Revision: May 2010 2011 Versa

EC-68
< FUNCTION DIAGNOSIS >[HR16DE]
AIR CONDITIONING CUT CONTROL
Component Description
INFOID:0000000005929778
1. Cooling fan motor harness connec- tor 2. Crankshaft position sensor
3. Stop lamp switch
4. Brake pedal 5. Accelerator pedal position sensor
harness connector 6. 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
Component Reference
Accelerator pedal position sensor EC-402, "
Description"
Camshaft position sensor (PHASE)EC-272, "Description"
Crankshaft position sensor (POS)EC-267, "Description"
Revision: May 2010 2011 Versa

AIR CONDITIONING CUT CONTROLEC-69
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Engine coolant temperature sensor
EC-168, "Description"
Refrigerant pressure sensorEC-460, "Description"
Component Reference
Revision: May 2010 2011 Versa

EC-70
< FUNCTION DIAGNOSIS >[HR16DE]
CAN COMMUNICATION
CAN COMMUNICATION
System DescriptionINFOID:0000000005929779
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 s
peed 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 CA N 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-27, "
CAN Communication Signal Chart", about CAN communication for detail.
Revision: May 2010 2011 Versa

COOLING FAN CONTROLEC-71
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COOLING FAN CONTROL
System DiagramINFOID:0000000005929780
System DescriptionINFOID:0000000005929781
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 via the 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
JMBIA2196GB
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
ABS actuator and electric unit (control unit)
Vehicle speed*2Combination meter
Engine coolant temperature sensorEngine coolant temperature
BCM Air conditioner ON signal*
2
Refrigerant pressure sensorRefrigerant pressure
Revision: May 2010 2011 Versa

EC-72
< FUNCTION DIAGNOSIS >[HR16DE]
COOLING FAN CONTROL
Models with A/C
Models without A/C
Cooling Fan Relay Operation
The ECM controls cooling fan relays via the CAN communication line.
PBIB2483E
PBIB3335E
Cooling fan speedCooling fan relay
123
Stop (OFF) OFFOFF OFF
Low (LOW) ONOFF OFF
High (HI) ONONON
Revision: May 2010 2011 Versa

COOLING FAN CONTROLEC-73
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Component Parts LocationINFOID:0000000006141216
1. Ignition coil (with power transistor)
and spark plug 2. Intake valve timing control solenoid
valve 3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector6. 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
Revision: May 2010 2011 Versa

EC-74
< FUNCTION DIAGNOSIS >[HR16DE]
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
Revision: May 2010 2011 Versa

COOLING FAN CONTROLEC-75
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1. ECM harness connectors
2. ECM3. IPDM E/R
4. Fuel pump fuse (15A) 5. Intake valve timing control solenoid
valve 6. Knock sensor
7. Refrigerant pressure sensor 8. PCV valve Vehicle front
PBIB2941E
Revision: May 2010 2011 Versa

EC-76
< FUNCTION DIAGNOSIS >[HR16DE]
COOLING FAN CONTROL
1. Air fuel ratio (A/F) sensor 1 2. Three way catalyst (Manifold) 3. Heated oxygen sensor 2
4. Three way catalyst (Under floor) 5. Muffler
Vehicle front
1. Exhaust manifold 2. Air fuel ratio (A/F) sensor 1 3. Heated oxygen sensor 2
4. Heated oxygen sensor 2 harness connector
Vehicle front
JMBIA2192ZZ
PBIB2943E
Revision: May 2010 2011 Versa