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TROUBLE DIAGNOSIS EC-769
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Revision: 2006 July 2007 FX35/FX45
Vacuum Hose DrawingNBS00422
Refer to EC-691, "System Diagram" for Vacuum Control System.
: Vehicle front : To EVAP canister purge volume control solenoid valve
1. Intake manifold collector 2. Vacuum tank 3. VIAS control solenoid valve
4. Power valve actuator
NOTE:
Do not use soapy water or any type of solvent while installing vacuum hoses or purge hoses.
PBIB3222E
Page 2146 of 4366
EC-770
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Circuit DiagramNBS00423
TBWM1319E
Page 2147 of 4366
TROUBLE DIAGNOSIS EC-771
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Revision: 2006 July 2007 FX35/FX45
TBWM1320E
Page 2148 of 4366
![INFINITI FX35 2007 Service Manual EC-772
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
ECM Harness Connector Terminal LayoutNBS00424
ECM Terminals and Reference ValueNBS00425
PREPARATION
ECM (1) is located behind the p INFINITI FX35 2007 Service Manual EC-772
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
ECM Harness Connector Terminal LayoutNBS00424
ECM Terminals and Reference ValueNBS00425
PREPARATION
ECM (1) is located behind the p](/manual-img/42/57018/w960_57018-2147.png)
EC-772
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
ECM Harness Connector Terminal LayoutNBS00424
ECM Terminals and Reference ValueNBS00425
PREPARATION
ECM (1) is located behind the passenger side instrument lower
panel. For this inspection, remove passenger side instrument lower
panel.
ECM INSPECTION TABLE
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.
PBIB3368E
PBIB3240E
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MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
1 B ECM ground [Engine is running]
Idle speedBody ground
2P A/F sensor 1 heater
(Bank 1) [Engine is running]
Warm-up condition
Idle speed Approximately 5V
3P Throttle control motor relay
power supply [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
4L/W Throttle control motor
(Close) [Ignition switch: ON]
Engine stopped
Selector lever: D
Accelerator pedal: Fully released 0 - 14V
PBIB1584E
PBIB1104E
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![INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-773
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Revision: 2006 July 2007 FX35/FX45
5L/B Throttle control motor
(Open) [Ignition switch: ON]Engine stopped
Selector lever: INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-773
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Revision: 2006 July 2007 FX35/FX45
5L/B Throttle control motor
(Open) [Ignition switch: ON]Engine stopped
Selector lever:](/manual-img/42/57018/w960_57018-2148.png)
TROUBLE DIAGNOSIS EC-773
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Revision: 2006 July 2007 FX35/FX45
5L/B Throttle control motor
(Open) [Ignition switch: ON]Engine stopped
Selector lever: D
Accelerator pedal: Fully depressed 0 - 14V
6R Heated 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 load 0 - 1.0V
[Ignition switch: ON]
Engine stopped
[Engine is running]
Engine speed: Above 3,600 rpm BATTERY VOLTAGE
(11 - 14V)
10 OR Intake valve timing control
solenoid valve (Bank 1) [Engine is running]
Warm-up condition
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
Engine speed: 2,000rpm 7 - 12V
11 B R Intake valve timing control
solenoid valve (Bank 2) [Engine is running]
Warm-up condition
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
Engine speed: 2,000rpm 7 - 12V
12 R/G Power steering pressure
sensor [Engine is running]
Steering wheel: Being turned
0.5 - 4.5V
[Engine is running]
Steering wheel: Not being turned 0.4 - 0.8V
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
PBIB1105E
PBIB1790E
PBIB1790E
Page 2150 of 4366
EC-774
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
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 speedApproximately 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-
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COLOR ITEM CONDITION DATA (DC Voltage)
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E
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![INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-775
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Revision: 2006 July 2007 FX35/FX45
21
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23
40
41
42
44
63 W
R
P
PU
BR
B
OR
G Fuel injector No. 5
Fuel injector N INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-775
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Revision: 2006 July 2007 FX35/FX45
21
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23
40
41
42
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63 W
R
P
PU
BR
B
OR
G Fuel injector No. 5
Fuel injector N](/manual-img/42/57018/w960_57018-2150.png)
TROUBLE DIAGNOSIS EC-775
[VK45DE]
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Revision: 2006 July 2007 FX35/FX45
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
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 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 speedApproximately 2.5V
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COLOR ITEM CONDITION DATA (DC Voltage)
PBIB0042E
PBIB0043E
PBIB1584E
Page 2152 of 4366
![INFINITI FX35 2007 Service Manual EC-776
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
45 W EVAP canister purge vol-
ume control solenoid valve [Engine is running]
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is INFINITI FX35 2007 Service Manual EC-776
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
45 W EVAP canister purge vol-
ume control solenoid valve [Engine is running]
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is](/manual-img/42/57018/w960_57018-2151.png)
EC-776
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
45 W EVAP canister purge vol-
ume 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
(Throttle 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-
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COLOR ITEM CONDITION DATA (DC Voltage)
PBIB0050E
PBIB0051E
PBIB0044E
PBIB0045E