2007 INFINITI M35 B engine

EC-818
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
3RThrottle control motor relay
power supply[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
4WThrottle control motor
(Close)[Ignition switch: ON]

Engine: Stopped

Selector lever: D

Accelerator pedal: Released0 - 14V
5BThrottle control motor
(Open)[Ignition switch: ON]

Engine: Stopped

Selector lever: D

Accelerator pedal: Fully depressed0 - 14V
6R/LHeated 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)
10 W/GIntake valve timing control
solenoid valve (bank 1)[Engine is running]

Warm-up condition

Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Warm-up condition

Engine speed: 2,000rpm7 - 12V
11 G/OIntake valve timing control
solenoid valve (bank 2)[Engine is running]

Warm-up condition

Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Warm-up condition

Engine speed: 2,000rpm7 - 12V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB1104E
PBIB1105E
PBIB1790E
PBIB1790E

TROUBLE DIAGNOSIS
EC-819
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M4512 R/GPower steering pressure
sensor[Engine is running]
Steering wheel: Being turned0.5 - 4.5V
[Engine is running]

Steering wheel: Not being turned0.4 - 0.8V
13 W/RCrankshaft position sensor
(POS)[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle1.0 - 2.0V
[Engine is running]

Engine speed: 2,000 rpm1.0 - 2.0V
14 GCamshaft position sensor
(PHASE)[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: 2,000 rpm1.0 - 4.0V
15 W Knock sensor (bank 1)[Engine is running]

Idle speedApproximately 2.5V
16 W/L
A/F sensor 1 (bank 1)[Engine is running]

Warm-up condition

Idle speedApproximately 3.1V
35 GR/LApproximately 2.6V
56 LG/BApproximately 2.3V
75 YApproximately 2.3V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E

EC-820
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
21
22
23
40
41
42
44
63W/B
R/Y
R/B
V/R
P/L
R/W
O
G/YFuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2
Fuel injector No. 7
Fuel injector No. 8[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 SBA/F sensor 1 heater
(bank 2)[Engine is running]

Warm-up condition

Idle speedApproximately 5V
25 P/BHeated oxygen sensor 2
heater (bank 2)[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)
29 V VIAS control solenoid valve[Engine is running]

Selector lever: P or N0 - 1.0V
[Engine is running]

Selector lever: D

Engine speed: Below 5,000 rpmBATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Engine speed: Above 5,000 rpm0 - 1.0V
32 R/GEVAP control system pres-
sure sensor[Ignition switch: ON]Approximately 1.8 - 4.8V
34 Y/GIntake air temperature sen-
sor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with intake
air temperature.
36 W Knock sensor (bank 2)[Engine is running]

Idle speedApproximately 2.5V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0042E
PBIB0043E
PBIB1584E

TROUBLE DIAGNOSIS
EC-821
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M4538 G/BFuel 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)
46
60
61
62
65
79
80
81L/O
V/W
P
Y/R
BR/R
GR/R
GR/B
G/RIgnition signal No. 7
Ignition signal No. 5
Ignition signal No. 3
Ignition signal No. 1
Ignition signal No. 8
Ignition signal No. 6
Ignition signal No. 4
Ignition signal No. 2[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle0 - 0.2V
[Engine is running]

Warm-up condition

Engine speed: 2,000 rpm0.1 - 0.4V
47 GSensor power supply
(Throttle position sensor)[Ignition switch: ON]Approximately 5V
48 BRSensor 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)
SEC990C
SEC991C
PBIB0044E
PBIB0045E

EC-822
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
50 W Throttle position sensor 1[Ignition switch: ON]

Engine: Stopped

Selector lever: D

Accelerator pedal: Fully releasedMore than 0.36V
[Ignition switch: ON]

Engine: Stopped

Selector lever: D

Accelerator pedal: Fully depressedLess than 4.75V
51 W Mass air flow sensor[Engine is running]

Warm-up condition

Idle speed0.9 - 1.2V
[Engine is running]

Warm-up condition

Engine speed: 2,500 rpm1.6 - 0.9V
53 LGIntake valve timing control
position sensor (bank 2)[Engine is running]

Warm-up condition

Idle speed0 - 1.0V
[Engine is running]

Engine speed: 2,000 rpm0 - 1.0V
55 L/RHeated oxygen sensor 2
(bank 1)[Engine is running]

Revving engine from idle to 3,000 rpm
quickly 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 - Approximately 1.0V
57 BR/W
A/F sensor 1 (bank 2)[Engine is running]

Warm-up condition

Idle speedApproximately 2.6V
58 G/OApproximately 2.3V
76 G/WApproximately 3.1V
77 GRApproximately 2.3V
66 BSensor ground
(Throttle position sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
67 B/W Sensor ground[Engine is running]

Warm-up condition

Idle speedApproximately 0V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB2734E
PBIB2735E

TROUBLE DIAGNOSIS
EC-823
[VK45DE]
C
D
E
F
G
H
I
J
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MA
EC
Revision: 2007 April2007 M35/M4568 L/YSensor power supply
(Power steering pressure
sensor)[Ignition switch: ON]Approximately 5V
69 R Throttle position sensor 2[Ignition switch: ON]

Engine: Stopped

Selector lever: D

Accelerator pedal: Fully releasedLess than 4.75V
[Ignition switch: ON]

Engine: Stopped

Selector lever: D

Accelerator pedal: Fully depressedMore than 0.36V
70 L/R Refrigerant pressure sensor[Engine is running]

Warm-up condition

Both A/C switch and blower fan motor
switch: ON (Compressor operates)1.0 - 4.0V
71 L/R Battery current sensor[Engine is running]

Battery: Fully charged*

Idle speedApproximately 2.6 - 3.5V
72 LIntake valve timing control
position sensor (bank 1)[Engine is running]

Warm-up condition

Idle speed0 - 1.0V
[Engine is running]

Engine speed: 2,000rpm0 - 1.0V
73 Y/BEngine coolant temperature
sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature.
74 WHeated oxygen sensor 2
(bank 2)[Engine is running]

Revving engine from idle to 3,000 rpm
quickly 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 - Approximately 1.0V
78 BSensor ground
(Heated oxygen sensor 2)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
82 WSensor ground
(APP sensor 1)[Engine is running]

Warm-up condition

Idle speedApproximately 0V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB2734E
PBIB2735E

EC-824
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
83 PSensor ground
(APP sensor 2)[Engine is running]
Warm-up condition

Idle speedApproximately 0V
85 V Data link connector[Ignition switch: ON]

CONSULT-II or GST: DisconnectedApproximately 5V - Battery volt-
age (11 - 14V)
86 P CAN communication line[Ignition switch: ON]Approximately 1.1 - 2.3V
Output voltage varies with the
communication status.
90 LSensor power supply
(APP sensor 1)[Ignition switch: ON]Approximately 5V
91 BRSensor power supply
(APP sensor 2)[Ignition switch: ON]Approximately 5V
94 L CAN communication line[Ignition switch: ON]Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
98 RAccelerator pedal position
sensor 2[Ignition switch: ON]

Engine: Stopped

Accelerator pedal: Fully released0.20 - 0.55V
[Ignition switch: ON]

Engine: Stopped

Accelerator pedal: Fully depressed1.85 - 2.40V
99 G/YICC steering switch
(models with ICC system)[Ignition switch: ON]

ICC steering switch: OFFApproximately 4.3V
[Ignition switch: ON]

MAIN switch: PressedApproximately 0V
[Ignition switch: ON]

CANCEL switch: PressedApproximately 1.3V
[Ignition switch: ON]

RESUME/ACCELERATE switch: PressedApproximately 3.7V
[Ignition switch: ON]

SET/COAST switch: PressedApproximately 3V
[Ignition switch: ON]

DISTANCE switch: PressedApproximately 2.2V
99 YASCD steering switch
(models with ASCD system)[Ignition switch: ON]

ASCD steering switch: OFFApproximately 4V
[Ignition switch: ON]

MAIN switch: PressedApproximately 0V
[Ignition switch: ON]

CANCEL switch: PressedApproximately 1V
[Ignition switch: ON]

RESUME/ACCELERATE switch: PressedApproximately 3V
[Ignition switch: ON]

SET/COAST switch: PressedApproximately 2V
101 V/R Stop lamp switch[Ignition switch: OFF]

Brake pedal: Fully releasedApproximately 0V
[Ignition switch: OFF]

Brake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)

TROUBLE DIAGNOSIS
EC-825
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 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" . 102 G PNP switch[Ignition switch: ON]

Selector lever: P or NApproximately 0V
[Ignition switch: ON]

Selector lever: Except aboveBATTERY VOLTAGE
(11 - 14V)
104 O Throttle control motor relay[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]0 - 1.0V
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]

For 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)