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TROUBLE DIAGNOSIS EC-769
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Revision: 2006 December 2006 FX35/FX45
Circuit DiagramNBS00423
TBWM1319E
Page 2154 of 4462
EC-770
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
TBWM1320E
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![INFINITI FX35 2006 Service Manual TROUBLE DIAGNOSIS EC-771
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Revision: 2006 December 2006 FX35/FX45
ECM Harness Connector Terminal LayoutNBS00424
ECM Terminals and Reference ValueNBS00425
INFINITI FX35 2006 Service Manual TROUBLE DIAGNOSIS EC-771
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Revision: 2006 December 2006 FX35/FX45
ECM Harness Connector Terminal LayoutNBS00424
ECM Terminals and Reference ValueNBS00425](/manual-img/42/57019/w960_57019-2154.png)
TROUBLE DIAGNOSIS EC-771
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Revision: 2006 December 2006 FX35/FX45
ECM Harness Connector Terminal LayoutNBS00424
ECM Terminals and Reference ValueNBS00425
PREPARATION
1. ECM (1) is located behind the passenger side instrument lower panel. For this inspection, remove passenger side instrument
lower panel.
2. Remove ECM harness connector.
3. When disconnecting ECM harness connector, loosen (A) it with levers (2) as far as they will go as shown in the figure.
ECM (1)
Fasten (B)
4. Connect a break-out box (SST) and Y-cable adapter (SST) between the ECM and ECM harness connector.
Use extreme care not to touch 2 pins at one time.
Data is for comparison and may not be exact.
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.
PBIB1192E
PBIB3240E
PBIB3223E
TER-
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
PBIB1584E
Page 2156 of 4462
![INFINITI FX35 2006 Service Manual EC-772
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
3P Throttle control motor relay
power supply [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
4L/W Throttle control moto INFINITI FX35 2006 Service Manual EC-772
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
3P Throttle control motor relay
power supply [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
4L/W Throttle control moto](/manual-img/42/57019/w960_57019-2155.png)
EC-772
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
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
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
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
PBIB1104E
PBIB1105E
PBIB1790E
PBIB1790E
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![INFINITI FX35 2006 Service Manual TROUBLE DIAGNOSIS EC-773
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Revision: 2006 December 2006 FX35/FX4512 R/G Power steering pressure
sensor [Engine is running]Steering wheel: Being turne INFINITI FX35 2006 Service Manual TROUBLE DIAGNOSIS EC-773
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Revision: 2006 December 2006 FX35/FX4512 R/G Power steering pressure
sensor [Engine is running]Steering wheel: Being turne](/manual-img/42/57019/w960_57019-2156.png)
TROUBLE DIAGNOSIS EC-773
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Revision: 2006 December 2006 FX35/FX4512 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
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-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E
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![INFINITI FX35 2006 Service Manual EC-774
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TROUBLE DIAGNOSIS
Revision: 2006 December 2006 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 inje INFINITI FX35 2006 Service Manual EC-774
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 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 inje](/manual-img/42/57019/w960_57019-2157.png)
EC-774
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 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
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
PBIB0042E
PBIB0043E
PBIB1584E
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![INFINITI FX35 2006 Service Manual TROUBLE DIAGNOSIS EC-775
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Revision: 2006 December 2006 FX35/FX45
45 W EVAP canister purge vol-
ume control solenoid valve [Engine is running]
Idle sp INFINITI FX35 2006 Service Manual TROUBLE DIAGNOSIS EC-775
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Revision: 2006 December 2006 FX35/FX45
45 W EVAP canister purge vol-
ume control solenoid valve [Engine is running]
Idle sp](/manual-img/42/57019/w960_57019-2158.png)
TROUBLE DIAGNOSIS EC-775
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Revision: 2006 December 2006 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 - 1 4 V
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-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
PBIB0050E
PBIB0051E
PBIB0044E
PBIB0045E
Page 2160 of 4462
![INFINITI FX35 2006 Service Manual EC-776
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
51 L/W Mass air flow sensor [Engine is running]
Warm-up condition
Idle speed
1.0 - 1.3V
[Engine is running]
Warm-up condit INFINITI FX35 2006 Service Manual EC-776
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
51 L/W Mass air flow sensor [Engine is running]
Warm-up condition
Idle speed
1.0 - 1.3V
[Engine is running]
Warm-up condit](/manual-img/42/57019/w960_57019-2159.png)
EC-776
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
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
quickly 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-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
PBIB2046E