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HOMESERVICE MANUALSINFINITI2006FX35 AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 4 (ENGINE CONTROL SYSTEM - INTRODUCTION (VK45DE))TROUBLE DIAGNOSISECM TERMINALS AND REFERENCE VALUEECM INSPECTION TABLE
2006 Infiniti FX35 AWD

ECM Inspection Table

2006 Infiniti FX35 AWDSECTION ECM Inspection Table
WARNING: This page is about a different car, the 2006 Infiniti FX45. However, it is still accessible from the selected car via links, so may be relevant.

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 damage to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.
ECM INSPECTION CHART

TERMINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage)
1 B ECM ground [Engine is running] 
  • Idle speed
 Body ground
2 P A/F sensor 1 heater (bank 1) [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 5V (1)
G04080403Courtesy of NISSAN MOTOR CO., U.S.A.
3 P Throttle control motor relay power supply [Ignition switch: ON]  BATTERY VOLTAGE (11 - 14V)
4 L/W Throttle control motor (Close) [Ignition switch: ON] 
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully released
 0 - 14V(1)
G04074579Courtesy of NISSAN MOTOR CO., U.S.A.
5 L/B Throttle control motor (Open) [Ignition switch: ON] 
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
 0 - 14V (1)
G04074580Courtesy of NISSAN MOTOR CO., U.S.A.
6 R 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(1)
G04074581Courtesy of NISSAN MOTOR CO., U.S.A.
11 BR 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(1)
G04074581Courtesy of NISSAN MOTOR CO., U.S.A.
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
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(1)
G04074583Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Engine speed: 2, 000 RPM
 1.0 - 2.0V(1)
G04074584Courtesy of NISSAN MOTOR CO., U.S.A.
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(1)
G04147929Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Engine speed: 2, 000 RPM
 1.0 - 4.0V(1)
G04074586Courtesy of NISSAN MOTOR CO., U.S.A.
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
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)(1)
G04074587Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Warm-up condition 
  • Engine speed: 2, 000 RPM
 BATTERY VOLTAGE (11 - 14V)(1)
G04074588Courtesy of NISSAN MOTOR CO., U.S.A.
24 P A/F sensor 1 heater (bank 2) [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 5V(1)
G04080403Courtesy of NISSAN MOTOR CO., U.S.A.
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 pressure sensor [Ignition switch: ON]  Approximately 1.8 - 4.8V
34 Y Intake air temperature sensor [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
45 W EVAP canister purge volume control solenoid valve [Engine is running] 
  • Idle speed
 BATTERY VOLTAGE (11 - 14V)(1)
G04074590Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Engine speed: About 2, 000 RPM (More than 100 seconds after starting engine)
 11 - 14V(1)
G04074591Courtesy of NISSAN MOTOR CO., U.S.A.
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(1)
G04074592Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Warm-up condition 
  • Engine speed: 2, 000 RPM
 0.1 - 0.4V(1)
G04074593Courtesy of NISSAN MOTOR CO., U.S.A.
47 L Sensor power supply (Throttle position sensor) [Ignition switch: ON]  Approximately 5V
48 L Sensor power supply (EVAP control system pressure sensor) [Ignition switch: ON]  Approximately 5V
49 PU Sensor power supply (Refrigerant pressure sensor) [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
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(1)
G04074594Courtesy of NISSAN MOTOR CO., U.S.A.
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
72 BR Intake valve timing control position sensor (bank 1) [Engine is running] 
  • Warm-up condition 
  • Idle speed
 0 - 1.0V
[Engine is running] 
  • Engine speed: 2, 000rpm
 0 - 1.0V(1)
G04074595Courtesy of NISSAN MOTOR CO., U.S.A.
73 GY Engine coolant temperature sensor [Engine is running]  Approximately 0 - 4.8V Output voltage varies with engine coolant temperature.
74 LG/B Heated 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
    • 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
78 B/R Sensor ground (Heated oxygen sensor 2) [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 0V
82 B/W Sensor ground (APP sensor 1 / ICC steering switch / ASCD steering switch) [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 0V
83 G/OR Sensor ground (APP sensor 2) [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 0V
85 PU Data link connector [Ignition switch: ON] 
  • CONSULT-II or GST: Disconnected
 Approximately 5V - Battery voltage (11 - 14V)
86 P CAN communication line [Ignition switch: ON]  Approximately 1.1 - 2.3V
Output voltage varies with the communication status.
90 L/B Sensor power supply (APP sensor 1) [Ignition switch: ON]  Approximately 5V
91 G Sensor 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 Y/R Accelerator pedal position sensor 2 [Ignition switch: ON] 
  • Engine stopped
  • Accelerator pedal: Fully released
 0.15 - 0.60V
[Ignition switch: ON] 
  • Engine stopped
  • Accelerator pedal: Fully depressed
 1.95 - 2.40V
99 G/Y ICC steering switch (models with ICC system) [Ignition switch: ON] 
  • ICC steering switch: OFF
 Approximately 4.3V
[Ignition switch: ON] 
  • MAIN switch: Pressed
 Approximately 0V
[Ignition switch: ON] 
  • CANCEL switch: Pressed
 Approximately 1.3V
[Ignition switch: ON] 
  • RESUME/ACCELERATE switch: Pressed
 Approximately 3.7V
[Ignition switch: ON] 
  • SET/COAST switch: Pressed
 Approximately 3V
[Ignition switch: ON] 
  • DISTANCE switch: Pressed
 Approximately 2.2V
99 G/Y ASCD steering switch (models with ASCD system) [Ignition switch: ON] 
  • ASCD steering switch: OFF
 Approximately 4V
[Ignition switch: ON] 
  • MAIN switch: Pressed
 Approximately 0V
[Ignition switch: ON] 
  • CANCEL switch: Pressed
 Approximately 1V
[Ignition switch: ON] 
  • RESUME/ACCELERATE switch: Pressed
 Approximately 3V
[Ignition switch: ON] 
  • SET/COAST switch: Pressed
 Approximately 2V
101 P/L Stop lamp switch [Ignition switch: OFF] 
  • Brake pedal: Fully released
 Approximately 0V
[Ignition switch: OFF] 
  • Brake pedal: Slightly depressed
 BATTERY VOLTAGE (11 - 14V)
102 LG/B PNP switch [Ignition switch: ON] 
  • Selector lever: P or N
 Approximately 0V
[Ignition switch: ON] 
  • Selector lever: Except above
 BATTERY VOLTAGE (11 - 14V)
104 L/OR Throttle control motor relay [Ignition switch: OFF]  BATTERY VOLTAGE (11 - 14V)
[Ignition switch: ON]  0 - 1.0V
106 OR Accelerator pedal position sensor 1 [Ignition switch: ON] 
  • Engine stopped
  • Accelerator pedal: Fully released
 0.5 - 1.0V
[Ignition switch: ON] 
  • Engine stopped
  • Accelerator pedal: Fully depressed
 3.9 - 4.7V
107 PU/W Fuel tank temperature sensor [Engine is running]  Approximately 0 - 4.8V
Output voltage varies with fuel tank temperature.
108 SB ICC brake switch (models witch ICC system)
ASCD brake switch (models witch ASCD system)		 [Ignition switch: ON] 
  • Brake pedal: Slightly depressed
 Approximately 0V
[Ignition switch: ON] 
  • Brake pedal: Fully released
 BATTERY VOLTAGE (11 - 14V)
109 W/L Ignition switch [Ignition switch: OFF]  0V
[Ignition switch: ON]  BATTERY VOLTAGE (11 - 14V)
111 W/B ECM relay (Self shut-off) [Engine is running] 
[Ignition switch: OFF] 
  • For a few seconds after turning ignition switch OFF
 0 - 1.5V
[Ignition switch: OFF] 
  • More than a few seconds after turning ignition switch OFF
 BATTERY VOLTAGE (11 - 14V)
113 GY/R 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 ON
 BATTERY VOLTAGE (11 - 14V)
115
116		 B/R
B/W		 ECM ground [Engine is running] 
  • Idle speed
 Body ground
117 R/Y EVAP canister vent control valve [Ignition switch: ON]  BATTERY VOLTAGE (11 - 14V)
119
120		 R
R/B		 Power supply for ECM [Ignition switch: ON]  BATTERY VOLTAGE (11 - 14V)
121 R/W Power supply for ECM (Back-up) [Ignition switch: OFF]  BATTERY VOLTAGE (11 - 14V)
(1) Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.