Infiniti G35 (V35) Sedan. Manual — part 475
EC-46
< FUNCTION DIAGNOSIS >
[VQ35HR]
ELECTRIC IGNITION SYSTEM
: Vehicle front
1.
Engine coolant temperature sensor
2.
A/F sensor 1 (bank 1)
3.
Crankshaft position sensor (POS)
1.
IPDM E/R
2.
Battery current sensor
3.
Refrigerant pressure sensor
: Vehicle front
1.
Power steering pressure sensor
2.
Alternator
3.
Engine oil temperature sensor
: Vehicle front
JMBIA0011ZZ
JMBIA0013ZZ
JMBIA0014ZZ
JMBIA0012ZZ
ELECTRIC IGNITION SYSTEM
EC-47
< FUNCTION DIAGNOSIS >
[VQ35HR]
C
D
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F
G
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EC
N
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1.
EVAP service port
2.
EVAP canister purge volume control
solenoid valve
3.
EVAP canister
4.
EVAP canister vent control valve
5.
EVAP control system pressure sen-
sor
: Vehicle front
1.
Fuel level sensor unit and fuel pump
harness connector
2.
Fuel level sensor unit and fuel pump 3.
Fuel pressure regulator
4.
Fuel tank temperature sensor
1.
Accelerator pedal position sensor
2.
ECM
1.
ICC steering switch
2.
CANCEL switch
3.
RESUME/ACCELERATE switch
4.
SET/COAST switch
5.
DISTANCE switch
6.
MAIN switch
JMBIA0019ZZ
JMBIA0015ZZ
JMBIA0016ZZ
EC-48
< FUNCTION DIAGNOSIS >
[VQ35HR]
ELECTRIC IGNITION SYSTEM
Component Description
INFOID:0000000000956489
1.
ASCD steering switch
2.
CANCEL switch
3.
RESUME/ACCELERATE switch
4.
SET/COAST switch
5.
MAIN switch
1.
Stop lamp switch
2.
ASCD brake switch (ASCD models)
ICC brake switch (ICC models)
3.
Brake pedal
4.
ASCD clutch switch (ASCD models)
ICC clutch switch (ICC models)
5.
Clutch pedal
JMBIA0017ZZ
JMBIA0051ZZ
Component
Reference
Accelerator pedal position sensor
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Ignition signal
Knock sensor
Mass air flow sensor
Park/neutral position switch
Throttle position sensor
Vehicle speed sensor
AIR CONDITIONING CUT CONTROL
EC-49
< FUNCTION DIAGNOSIS >
[VQ35HR]
C
D
E
F
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P
O
AIR CONDITIONING CUT CONTROL
System Diagram
INFOID:0000000000956490
System Description
INFOID:0000000000956491
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
• When the accelerator pedal is fully depressed.
• When cranking the engine.
• At high engine speeds.
• When the engine coolant temperature becomes excessively high.
• When operating power steering during low engine speed or low vehicle speed.
• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.
Component Parts Location
INFOID:0000000000956492
JMBIA0073GB
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine speed*
2
Air conditioner
cut control
IPDM E/R
↓
A/C relay
↓
Compressor
Engine coolant temperature sensor
Engine coolant temperature
Accelerator pedal position sensor
Accelerator pedal position
Battery
Battery voltage*
2
Refrigerant pressure sensor
Refrigerant pressure
Power steering pressure sensor
Power steering operation
Unified meter and A/C amp.
Air conditioner ON signal*
1
Vehicle speed*
1
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