fuel consumption INFINITI FX35 2007 Service Manual

DI-32
UNIFIED METER AND A/C AMP
Revision: 2006 July 2007 FX35/FX45
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG- NALS” is selected, main items will be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the moni- tored item can be recorded. To stop recording, touch “STOP”.
Display Item List
X: Applicable
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.
SKIA4957E
Display item [Unit] MAIN
SIGNALS SELECTION
FROM MENU Contents
SPEED METER [km/h] or [mph] X X Displays the value of vehicle speed signal, which is input from
ABS actuator and electric unit (control unit).
SPEED OUTPUT [km/h] or [mph] X X Displays the value of vehicle speed signal, which is transmitted
to each unit with CAN communication.
TACHO METER [rpm] X X Displays the value of engine speed signal, which is input from
ECM.
W TEMP METER [ °C] or [ °F] X X Displays the value of engine coolant temperature signal, which
is input from ECM.
FUEL METER [lit.] X X Displays the value, which processes a resistance signal from
fuel gauge.
DISTANCE [km] or [mile] X X Displays the value, which is calculated by vehicle speed signal
from ABS actuator and electric unit (control unit), fuel gauge and
fuel consumption from ECM.
FUEL W/L [ON/OFF] X X Indicates [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF] X Indicates [ON/OFF] condition of malfunction indicator lamp.
AIR PRES W/L [ON/OFF] X Indicates [ON/OFF] condition of low tire pressure warning lamp.
SEAT BELT W/L [ON/OFF]
*1X Indicates [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF] X X Indicates [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Indicates [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Indicates [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF] X Indicates [ON/OFF] condition of turn indicator.
OIL W/L [ON/OFF] X Indicates [ON/OFF] condition of oil pressure warning lamp.
VDC/TCS IND [ON/OFF] X Indicates [ON/OFF] condition of VDC OFF indicator lamp.
ABS W/L [ON/OFF] X Indicates [ON/OFF] condition of ABS warning lamp.
SLIP IND [ON/OFF] X Indicates [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L [ON/OFF]
*2X Indicates [ON/OFF] condition of brake warning lamp.
KEY G W/L [ON/OFF] X Indicates [ON/OFF] condition of key warning lamp (green).

EC-96
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Symptom Matrix ChartNBS003M0
SYSTEM — BASIC ENGINE CONTROL SYSTEM
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
Fuel Fuel pump circuit 11232 22 3 2 EC-636
Fuel pressure regulator system334444444 4 EC-85
Fuel injector circuit 11232 22 2 EC-629
Evaporative emission system 334444444 4EC-38
Air Positive crankcase ventilation sys-
tem 33 4444444 41
EC-50
Incorrect idle speed adjustment 1 1 1 1 1 EC-76
Electric throttle control actuator 112332222 2 2 EC-563,
EC-574
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-76
Ignition circuit 11222 22 2EC-650
Power supply and ground circuit22333 33 23 EC-148
Mass air flow sensor circuit
1
12 2
222 2 EC-187,
EC-196
Engine coolant temperature sensor circuit
3 33
EC-209,
EC-221
Air fuel ratio (A/F) sensor EC-239
EC-239
EC-248
EC-257
EC-605
Throttle position sensor circuit
22 EC-214
,
EC-338
,
EC-509
,
EC-511
,
EC-590
Accelerator pedal position sensor circuit 3 2 1 EC-483
,
EC-576
,
EC-583
,
EC-597
Knock sensor circuit 2 3 EC-355
Crankshaft position sensor (POS) circuit 2 2EC-360
Camshaft position sensor (PHASE) circuit 3 2EC-367
Vehicle speed signal circuit 2 3 3 3EC-465
Power steering pressure sensor circuit 2 3 3EC-471

TROUBLE DIAGNOSIS EC-97
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
1 - 6: The numbers refer to the order of inspection.
(continued on next page) ECM 22333333333
EC-476
,
EC-480
Intake valve timing control solenoid valve cir-
cuit 32 13223 3
EC-180
Park/neutral position (PNP) switch circuit 3 3 3 3 3 EC-488
Refrigerant pressure sensor circuit 2 3 3 4EC-663
Electrical load signal circuit 3EC-627
Air conditioner circuit223333333 3 2 AT C - 4 0
ABS actuator and electric unit (control unit) 4 BRC-11
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

EC-98
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
SYSTEM — ENGINE MECHANICAL & OTHER
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
Fuel Fuel tank 5
5 FL-10
Fuel piping 5 5 5 5 5 5
EM-45
Vapor lock —
Valve deposit 5 555 55 5 —
Poor fuel (Heavy weight gaso-
line, Low octane) —
Air Air duct
55555 5 EM-17
Air cleaner
EM-17
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator) 5555 EM-17
Electric throttle control actuator
EM-19
Air leakage from intake manifold/
Collector/Gasket EM-19,
EM-24
Cranking Battery 111111
1 1
SC-5
Generator circuit
SC-24
Starter circuit 3SC-11
Signal plate 6EM-123
Park/neutral position (PNP)
switch 4
AT- 11 2
Engine Cylinder head
55555 55 5 EM-101
Cylinder head gasket 4 3
Cylinder block
66666 66 6 4
EM-123
Piston
Piston ring
Connecting rod
Bearing
Crankshaft

TROUBLE DIAGNOSIS EC-99
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
1 - 6: The numbers refer to the order of inspection. Va l v e
mecha-
nism Timing chain
55555 55 5 EM-64
Camshaft
EM-83
Intake valve timing controlEM-64
Intake valve
3 EM-101
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/ Gasket 55555 55 5 EM-26
,
EX-
3Three way catalyst
Lubrica-
tion Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler 55555 55 5 EM-30
,
LU-
17 , LU-10 ,
LU-14
Oil level (Low)/Filthy oil LU-7
Cooling
Radiator/Hose/Radiator filler cap
55555 55 45 CO-14,
CO-17
Thermostat 5 CO-27
Water pumpCO-22
Water galleryCO-29
Cooling fan 5EC-227
Coolant level (Low)/Contami-
nated coolant 5
CO-11
IVIS (Infiniti Vehicle Immobilizer System —
NATS) 11
EC-52 or
BL-205
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

EC-758
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Symptom Matrix ChartNBS00420
SYSTEM — BASIC ENGINE CONTROL SYSTEM
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
Fuel Fuel pump circuit 11232 22 3 2 EC-1318
Fuel pressure regulator system334444444 4 EC-747
Fuel injector circuit 11232 22 2 EM-194
Evaporative emission system 334444444 4EC-700
Air Positive crankcase ventilation sys-
tem 33 4444444 41
EC-712
Incorrect idle speed adjustment 1 1 1 1 1 EC-738
Electric throttle control actuator 112332222 2 2 EC-1244,
EC-1256
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-738
Ignition circuit 11222 22 2EC-1332
Main power supply and ground circuit 22333 33 23 EC-813
Mass air flow sensor circuit
1
12 2
222 2 EC-859,
EC-868
,
Engine coolant temperature sensor circuit
3 33
EC-880
,
EC-893
A/F sensor 1 circuit EC-901
,
EC-911
,
EC-920
,
EC-929
,
EC-1287
Throttle position sensor circuit
22 EC-886
,
EC-1009
,
EC-1185
,
EC-1187
,
EC-1272
Accelerator pedal position sensor circuit 3 2 1 EC-1151
,
EC-1258
,
EC-1265
,
EC-1279
Knock sensor circuit 2 3 EC-1026
Crankshaft position sensor (POS) circuit 2 2EC-1031
Camshaft position sensor (PHASE) circuit 3 2EC-1038
Vehicle speed signal circuit 2 3 3 3EC-1133
Power steering pressure sensor circuit 2 3 3EC-1139

TROUBLE DIAGNOSIS EC-759
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
ECM 22333333333 EC-1144,
EC-1148
Intake valve timing control solenoid valve cir-
cuit 32 13223 3
EC-852
PNP switch circuit 3 3 3 3 3 EC-1156
Refrigerant pressure sensor circuit 2 3 3 4EC-1345
Electrical load signal circuit 3EC-1309
Air conditioner circuit223333333 3 2 AT C - 4 0
VIAS control solenoid valve circuit 1 EC-1228
ABS actuator and electric unit (control unit) 4EC-1171
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
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
Fuel Fuel tank 5
5 FL-10
Fuel piping 5 5 5 5 5 5
EM-194
Vapor lock —
Valve deposit 5 555 55 5 —
Poor fuel (Heavy weight gaso-
line, Low octane) —

EC-760
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Air Air duct
55555 5 EM-177
Air cleaner
EM-177
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator) 5555 EM-177
Electric throttle control actuator
EM-179
Air leakage from intake manifold/
Collector/Gasket EM-179
Cranking Battery
111111
1 1
SC-5
Generator circuit
SC-24
Starter circuit 3SC-11
Signal plate 6EM-248
PNP switch 4AT- 11 2
Engine Cylinder head
55555 55 5 EM-232
Cylinder head gasket 4 3
Cylinder block
66666 66 6 4
EM-248
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Va l v e
mecha-
nism Timing chain
55555 55 5 EM-203
Camshaft
EM-215
Intake valve timing controlEM-203
Intake valve
3 EM-203
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/ Gasket 55555 55 5 EM-183
,
EX-3
Three way catalyst
Lubrica-
tion Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler 55555 55 5 EM-187
,
LU-31
, LU-
28 , LU-29
Oil level (Low)/Filthy oil LU-25
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-761
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
1 - 6: The numbers refer to the order of inspection. Cooling
Radiator/Hose/Radiator filler cap
55555 55 45 CO-41
,
CO-45
Thermostat 5 CO-53
Water pumpCO-51
Water galleryCO-36
Cooling fan
5 CO-49
Coolant level (Low)/Contami-
nated coolant CO-38
IVIS (INFINITI Vehicle Immobilizer System —
NATS) 11
EC-714 or
BL-205
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

LAN-50
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
CAN Communication Signal ChartNKS004NP
Refer to LAN-15, "How to Use CAN Communication Signal Chart" for how to use CAN communication signal
chart.
TYPE 1/TYPE 2
NOTE:
Refer to LAN-41, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive
Signals
ECM
DISP TCM
BCM
I-KEY
STRG M&AABS
ADP
IPDM-E
A/C compressor feedback signal T R
A/C compressor request signal T R
Accelerator pedal position signal T R R
ASCD CRUISE lamp signal T R
ASCD OD cancel request signal T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T R R R R
Engine status signal T R
Fuel consumption monitor signal TR
RT
Malfunctioning indicator lamp signal T R
Wide open throttle position signal T R
A/C switch/indicator signal TR
RT
System setting signal TR R
RT T
A/T CHECK indicator lamp signal T R
A/T self-diagnosis signal R T
Current gear position signal T R
Manual mode indicator signal T R
Output shaft revolution signal R T
P range signal T R R
Shift position indicator signal T R
Turbine revolution signal R T
A/C switch signal R T
Buzzer output signal TR
TR
Blower fan motor switch signal R T
Day time running light request signal T R
Door lock/unlock status signal T R
Door switch signal R T R R R R