fuel INFINITI M35 2006 Factory Owners Manual

EC-112
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
1 - 6: The numbers refer to the order of inspection.Cooling
Radiator/Hose/Radiator filler cap
55555 55 45CO-14
,
CO-18
Thermostat 5CO-29
Water pumpCO-24
Water galleryCO-31
Cooling fan
5CO-22
Coolant level (Low)/Contami-
nated coolantCO-11
IVIS (INFINITI Vehicle Immobilizer System —
NATS)11EC-53 or
BL-248
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA

TROUBLE DIAGNOSIS
EC-113
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EC
Revision: 2006 January2006 M35/M45
Engine Control Component Parts LocationNBS004T2
1. IPDM E/R 2. ICC brake hold relay
(ICC models only)3. Battery current sensor
4. Cooling fan relay 5. Power steering pressure sensor 6. Refrigerant pressure sensor
7. Intake valve timing control solenoid
valve (bank 1)8. Cooling fan motor-2 9. Cooling fan control module
10. Intake valve timing control solenoid
valve (bank 2)11. Cooling fan motor-1 12. Mass air flow sensor
(with intake air temperature sensor)
13. Ignition coil (with power transistor)
and spark plug (bank 2)14. Camshaft position sensor (PHASE)
(Bank 2)15. Electric throttle control actuator
16. Fuel injector (bank 2) 17. Knock sensor 18. Fuel injector (bank 1)
19. EVAP canister purge volume con-
trol solenoid valve20. Camshaft position sensor (PHASE)
(Bank 1)21. Engine coolant temperature sensor
22. Ignition coil (with power transistor)
and spark plug (bank 1)23. EVAP service port
PBIB2781E

EC-114
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
: Vehicle front
1. Mass air flow sensor (With intake air
temperature sensor)2. Electric throttle control actuator 3. Cooling fan motor-2 harness con-
nector
4. Cooling fan motor-1 harness con-
nector5. Cooling fan control module 6. Refrigerant pressure sensor har-
ness connector
7. PCV valve 8. Engine coolant temperature sensor
harness connector9. Fuel dumper
PBIB2787E

TROUBLE DIAGNOSIS
EC-115
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Revision: 2006 January2006 M35/M45
: Vehicle front
1. Knock sensor 2. Fuel damper 3. Camshaft position sensor (PHASE)
(Bank 1)
4. Fuel injector harness connector 5. Condenser 6. Fuel damper
7. Camshaft position sensor (PHASE)
(Bank 2)8. Fuel pump fuse 9. IPDM E/R
PBIB2788E

EC-120
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
: Vehicle front
1. Fuel level sensor unit and fuel pump
harness connector2. Fuel level sensor unit and fuel pump 3. Fuel pressure regulator
4. Fuel tank temperature sensor 5. FPCM 6. Dropping resistor
PBIB2681E

TROUBLE DIAGNOSIS
EC-127
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EC
Revision: 2006 January2006 M35/M45
21
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23
40
41
42W
R/Y
R/B
V/R
P/L
R/WFuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idleBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
Engine speed: 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
24 OA/F sensor 1 heater
(bank 2)[Engine is running]
Warm-up condition
Idle speedApproximately 5V
25 P/BHeated oxygen sensor 2
heater (bank 1)[Engine is running]
Engine speed: Below 3,600 rpm after the
following conditions are met
–Engine: after warming up
–Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load0 - 1.0V
[Ignition switch: ON]
Engine stopped
[Engine is running]
Engine speed: Above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
32 R/GEVAP control system pres-
sure sensor[Ignition switch: ON]Approximately 1.8 - 4.8V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0042E
PBIB0043E
PBIB1584E

EC-128
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
33 LGCamshaft position sensor
(PHASE) (bank 1)[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle1.0 - 4.0V
[Engine is running]
Engine speed is 2,000 rpm1.0 - 4.0V
34 Y/GIntake air temperature sen-
sor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with intake
air temperature.
38 G/RFuel pump control module
(FPCM) check[When cranking engine]Approximately 0V
[Engine is running]
Warm-up condition
Idle speed4 - 6V
39 B/RFuel pump control module
(FPCM)[When cranking engine]0 - 0.5V
[Engine is running]
Warm-up condition
Idle speed8 - 12V
45 VEVAP canister purge vol-
ume control solenoid valve[Engine is running]
Idle speed
Accelerator pedal: Not depressed even
slightly, after engine startingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Engine speed: About 2,000 rpm (More than
100 seconds after starting engine)BATTERY VOLTAGE
(11 - 14V)
47 LSensor power supply
(Throttle position sensor)[Ignition switch: ON]Approximately 5V
48 L/BSensor power supply
(EVAP control system pres-
sure sensor)[Ignition switch: ON]Approximately 5V
49 B/YSensor power supply
(Refrigerant pressure sen-
sor, Battery current sensor)[Ignition switch: ON]Approximately 5V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB1039E
PBIB1040E
SEC990C
SEC991C

EC-132
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
*: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to SC-5, "
SPECIFIC GRAVITY CHECK" . 106 LGAccelerator pedal position
sensor 1[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.4 - 1.1V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed3.7 - 4.8V
107 V/WFuel tank temperature sen-
sor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with fuel
tank temperature.
108 BRICC brake switch (models
witch ICC system)
ASCD brake switch (models
witch ASCD system)[Ignition switch: ON]
Brake pedal: Slightly depressedApproximately 0V
[Ignition switch: ON]
Brake pedal: Fully releasedBATTERY VOLTAGE
(11 - 14V)
109 L Ignition switch[Ignition switch: OFF]0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
111 S BECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]
A few seconds after turning ignition switch
OFF0 - 1.5V
[Ignition switch: OFF]
More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
113 GR Fuel pump relay[Ignition switch: ON]
For 1 second after turning ignition switch ON
[Engine is running]0 - 1.5V
[Ignition switch: ON]
More than 1 second after turning ignition
switch ONBATTERY VOLTAGE
(11 - 14V)
11 5
11 6B
BECM ground[Engine is running]
Idle speedBody ground
11 7 G R / LEVAP canister vent control
valve[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
11 9
120R
RPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
121 LPower supply for ECM
(Back-up)[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)

TROUBLE DIAGNOSIS
EC-133
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Revision: 2006 January2006 M35/M45
CONSULT-II Function (ENGINE)NBS004T7
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.
Diagnostic trouble codes
1st trip diagnostic trouble codes
Freeze frame data
1st trip freeze frame data
System readiness test (SRT) codes
Test valuesDiagnostic test mode Function
Work supportThis mode enables a technician to adjust some devices faster and more accurately by following the
indications on the CONSULT-II unit.
Self-diagnostic resultsSelf-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data
can be read and erased quickly.*
Data monitor Input/Output data in the ECM can be read.
Data monitor (SPEC)Input/Output of the specification for Basic fuel schedule, AFM, A/F feedback control value and the
other data monitor items can be read.
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.
Active testDiagnostic Test Mode in which CONSULT-II drives some actuators apart from the ECMs and also
shifts some parameters in a specified range.
DTC & SRT confirmation The status of system monitoring tests and the self-diagnosis status/result can be confirmed.
Function test This mode is used to inform customers when their vehicle condition requires periodic maintenance.
ECM part number ECM part number can be read.

EC-134
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOS-
TIC RESULTS
DATA
MONI-
TORDATA
MONI-
TOR
(SPEC)ACTIVE
TESTDTC & SRT
CONFIRMATION
DTC*1FREEZE
FRAME
DATA*2SRT
STATUSDTC
WORK
SUP-
PORT
ENGINE CONTROL COMPONENT PARTS
INPUT
Crankshaft position sensor (POS)
Camshaft position sensor
(PHASE)
Mass air flow sensor
Engine coolant temperature sen-
sor
Air fuel ratio (A/F) sensor 1
Heated oxygen sensor 2
Wheel sensor
Accelerator pedal position sensor
Throttle position sensor
Fuel tank temperature sensor
EVAP control system pressure
sensor
Intake air temperature sensor
Knock sensor
Refrigerant pressure sensor
Closed throttle position switch
(accelerator pedal position sensor
signal)
Air conditioner switch
Park/neutral position (PNP) switch
Stop lamp switch
Power steering pressure sensor
Battery voltage
Load signal
Fuel level sensor
Battery current sensor
ICC steering switch
ASCD steering switch
ICC brake switch
ASCD brake switch