Page 1481 of 4366
TROUBLE DIAGNOSIS EC-105
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
PBIB3256E
Page 1482 of 4366
EC-106
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Vacuum Hose DrawingNBS003M2
Refer to EC-29, "System Diagram" for Vacuum Control System.
PBIB2095E
Page 1483 of 4366
TROUBLE DIAGNOSIS EC-107
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
Circuit DiagramNBS003M3
TBWM1375E
Page 1484 of 4366
EC-108
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
TBWM1376E
Page 1485 of 4366
![INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-109
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
ECM Harness Connector Terminal LayoutNBS003M4
ECM Terminals and Reference ValueNBS003M5
PRE INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-109
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
ECM Harness Connector Terminal LayoutNBS003M4
ECM Terminals and Reference ValueNBS003M5
PRE](/manual-img/42/57018/w960_57018-1484.png)
TROUBLE DIAGNOSIS EC-109
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
ECM Harness Connector Terminal LayoutNBS003M4
ECM Terminals and Reference ValueNBS003M5
PREPARATION
ECM 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
PBIB1578E
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
1 B ECM ground [Engine is running]
Idle speedBody ground
2R/L A/F sensor 1 heater
(bank 1) [Engine is running]
Warm-up condition
Idle speed Approximately 5V
3R 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
Page 1486 of 4366
![INFINITI FX35 2007 Service Manual EC-110
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
5L/B Throttle control motor
(Open) [Ignition switch: ON]Engine stopped
Selector lever: D
Accelerator pedal: Fully depressed INFINITI FX35 2007 Service Manual EC-110
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
5L/B Throttle control motor
(Open) [Ignition switch: ON]Engine stopped
Selector lever: D
Accelerator pedal: Fully depressed](/manual-img/42/57018/w960_57018-1485.png)
EC-110
[VQ35DE]
TROUBLE DIAGNOSIS
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 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)
10 OR 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
When revving engine up to 2,500 rpm
quickly 7 - 12V
11 B R 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
When revving engine up to 2,500 rpm
quickly 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 1487 of 4366
TROUBLE DIAGNOSIS EC-111
[VQ35DE]
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EC
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 Approximately 1.6V
[Engine is running]
Engine speed: 2,000 rpm Approximately 1.4V
14 BR Camshaft position sensor
(PHASE) (bank 2) [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 [Engine is running]
Idle speedApproximately 2.5V
16 G
A/F sensor 1 (bank 1) [Engine is running]
Warm-up condition
Idle speed Approximately 3.1V
35 B/R Approximately 2.6V
56 L Approximately 2.3V
75 R/B Approximately 2.3V
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E
Page 1488 of 4366
![INFINITI FX35 2007 Service Manual EC-112
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
21
22
23 W
G
R Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1 [Engine is running]
Warm-up condition
Idle sp INFINITI FX35 2007 Service Manual EC-112
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
21
22
23 W
G
R Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1 [Engine is running]
Warm-up condition
Idle sp](/manual-img/42/57018/w960_57018-1487.png)
EC-112
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
21
22
23 W
G
R Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1 [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 L 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 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)
32 OR EVAP control system pres-
sure sensor [Ignition switch: ON]
Approximately 1.8 - 4.8V
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
SEC984C
SEC985C
PBIB1584E