Infiniti FX35 / FX45. Manual - part 482

TROUBLE DIAGNOSIS

EC-689

< SERVICE INFORMATION >

[VK45DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

13

Y

Crankshaft position sensor 
(POS)

[Engine is running]
• Warm-up condition
• Idle speed

NOTE:
The pulse cycle changes depending on rpm 
at idle

1.0 - 2.0V

[Engine is running]
• Engine speed: 2,000 rpm

1.0 - 2.0V

14

W

Camshaft position sensor 
(PHASE)

[Engine is running]
• Warm-up condition
• Idle speed

NOTE:
The pulse cycle changes depending on rpm 
at idle

1.0 - 4.0V

[Engine is running]
• Engine speed: 2,000 rpm

1.0 - 4.0V

15

W

Knock sensor (Bank 1)

[Engine is running]
• Idle speed

Approximately 2.5V

16

R

A/F sensor 1 (Bank 1)

[Engine is running]
• Warm-up condition
• Idle speed

Approximately 3.1V

35

G

Approximately 2.6V

56

B

Approximately 2.3V

75

OR

Approximately 2.3V

TER-

MI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

PBIB1041E

PBIB1042E

PBIB1039E

PBIB1040E

EC-690

< SERVICE INFORMATION >

[VK45DE]

TROUBLE DIAGNOSIS

21
22
23
40
41
42
44
63

W
R
P
PU
BR
B
OR
G

Fuel 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 idle

BATTERY VOLTAGE

(11 - 14V)

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

BATTERY VOLTAGE

(11 - 14V)

24

P

A/F sensor 1 heater
(Bank 2)

[Engine is running]
• Warm-up condition
• Idle speed

Approximately 5V

25

P

Heated oxygen sensor 2 
heater (Bank 2)

[Engine is running]
• Engine speed: Below 3,600 rpm after the fol-

lowing 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 load

0 - 1.0V

[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600 rpm

BATTERY VOLTAGE
(11 - 14V)

29

GY

VIAS control solenoid valve

[Engine is running]
• Selector lever: P or N

0 - 1.0V

[Engine is running]
• Selector lever: D
• Engine speed: Below 5,000 rpm

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]
• Engine speed: Above 5,000 rpm

0 - 1.0V

32

OR

EVAP control system pres-
sure sensor

[Ignition switch: ON]

Approximately 1.8 - 4.8V

34

Y

Intake 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 speed

Approximately 2.5V

TER-

MI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

PBIB0042E

PBIB0043E

PBIB1584E

TROUBLE DIAGNOSIS

EC-691

< SERVICE INFORMATION >

[VK45DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

45

W

EVAP canister purge volume 
control solenoid valve

[Engine is running]
• Idle speed

BATTERY VOLTAGE

(11 - 14V)

[Engine is running]
• Engine speed: About 2,000 rpm (More than 

100 seconds after starting engine)

11 - 14V

46
60
61
62
65
79
80
81

BR
SB
L
Y
P
LG
GY
G

Ignition 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 idle

0 - 0.2V

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

0.1 - 0.4V

47

L

Sensor power supply (Throt-
tle position sensor)

[Ignition switch: ON]

Approximately 5V

48

L

Sensor power supply
(EVAP control system pres-
sure sensor)

[Ignition switch: ON]

Approximately 5V

49

PU

Sensor power supply
(Refrigerant pressure sen-
sor)

[Ignition switch: ON]

Approximately 5V

50

W

Throttle position sensor 1

[Ignition switch: ON]
• Engine stopped
• Selector lever: D
• Accelerator pedal: Fully released

More than 0.36V

[Ignition switch: ON]
• Engine stopped
• Selector lever: D
• Accelerator pedal: Fully depressed

Less than 4.75V

TER-

MI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

PBIB0050E

PBIB0051E

PBIB0044E

PBIB0045E

EC-692

< SERVICE INFORMATION >

[VK45DE]

TROUBLE DIAGNOSIS

51

L/W

Mass air flow sensor

[Engine is running]
• Warm-up condition
• Idle speed

1.0 - 1.3V

[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm

1.6 - 2.0V

53

R/L

Intake valve timing control 
position sensor (Bank 2)

[Engine is running]
• Warm-up condition
• Idle speed

0 - 1.0V

[Engine is running]
• Engine speed: 2,000 rpm

0 - 1.0V

55

W/R

Heated oxygen sensor 2 
(Bank 1)

[Engine is running]
• Revving engine from idle to 3,000 rpm quick-

ly after the following conditions are met

- Engine: After warming up
- After keeping the engine speed between 

3,500 and 4,000 rpm for 1 minute and at idle 
for 1 minute under no load

0 - Approximately 1.0V

57

G

A/F sensor 1 (Bank 2)

[Engine is running]
• Warm-up condition
• Idle speed

Approximately 2.6V

58

L

Approximately 2.3V

76

R

Approximately 3.1V

77

OR

Approximately 2.3V

66

B

Sensor ground
(Throttle position sensor)

[Engine is running]
• Warm-up condition
• Idle speed

Approximately 0V

67

B/W

Sensor ground

[Engine is running]
• Warm-up condition
• Idle speed

Approximately 0V

68

SB

Sensor 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 released

Less than 4.75V

[Ignition switch: ON]
• Engine stopped
• Selector lever: D
• Accelerator pedal: Fully depressed

More 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

TER-

MI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

PBIB2046E