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ECM Inspection Table

WARNING: This page is about a different car, the 2006 Nissan Quest. 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 TABLE

TERMINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage)
1 B ECM ground [Engine is running] 
  • Idle speed
 Body ground
2 R/G 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 R Throttle control motor relay power supply [Ignition switch: ON]  BATTERY VOLTAGE (11 - 14V)
4 O/L Throttle control motor (Close) [Ignition switch: ON] 
  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully released
 0 - 14V(1)
G04074579Courtesy of NISSAN MOTOR CO., U.S.A.
5 W/L Throttle control motor (Open) [Ignition switch: ON] 
  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully depressed
 0 - 14V(1)
G04074580Courtesy of NISSAN MOTOR CO., U.S.A.
6 GR 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 is above 3, 600 rpm.
 BATTERY VOLTAGE (11 - 14V)
8 W Electronic controlled engine mount-1 [Engine is running] 
  • Engine speed is above 950 rpm.
 BATTERY VOLTAGE (11 - 14V)
[Engine is running] 
  • For 2 seconds after engine speed is 950 rpm or less.
 0 - 1.0V
[Engine is running] 
  • 2 seconds after engine speed is 950 rpm or less.
 2.0 - 3.0V
9 W/R Electronic controlled engine mount-2 [Engine is running] 
  • Engine speed is below 950 rpm.
 BATTERY VOLTAGE (11 - 14V)
[Engine is running] 
  • For 2 seconds after engine speed is 950 rpm or more.
 0 - 1.0V
[Engine is running] 
  • 2 seconds after engine speed is 950 rpm or more.
 2.0 - 3.0V
10 Y/L 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 is 2, 000 rpm.
 7 - 12V(1)
G04074581Courtesy of NISSAN MOTOR CO., U.S.A.
11 R/L 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 is 2, 000 rpm.
 7 - 12V(1)
G04074581Courtesy of NISSAN MOTOR CO., U.S.A.
12 W Power steering pressure sensor [Engine is running] 
  • Steering wheel is being turned.
 0.5 - 4.5V
[Engine is running] 
  • Steering wheel is not being turned.
 0.4 - 0.8V
13 W Crankshaft position sensor (POS) [Engine is running] 
  • Warm-up condition 
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 Approximately 10V(1)
G04196454Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Engine speed is 2, 000 rpm.
 Approximately 10V(1)
G04196455Courtesy of NISSAN MOTOR CO., U.S.A.
14 W 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(1)
G04147929Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Engine speed is 2, 000 rpm.
 1.0 - 4.0V(1)
G04074586Courtesy of NISSAN MOTOR CO., U.S.A.
15 W Knock sensor [Engine is running] 
  • Idle speed
 Approximately 2.5V
16 BR A/F sensor 1 (Bank 1) [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 3.1V
35 O/B Approximately 2.6V
56 V Approximately 2.3V
75 P Approximately 2.3V
17
18
19
20		 P/B
G
L
L/W		 EGR volume control valve [Engine is running] 
  • Idle speed
 0.1 - 14V
21
22
23		 L/W
R/Y
R/B		 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)(1)
G04080414Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Warm-up condition 
  • Engine speed is 2, 000 rpm.
 BATTERY VOLTAGE (11 - 14V)(1)
G04173127Courtesy of NISSAN MOTOR CO., U.S.A.
24 W 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 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 is above 3, 600 rpm.
 BATTERY VOLTAGE (11 - 14V)
29 Y/G VIAS control solenoid valve [Engine is running] 
  • Idle speed
 BATTERY VOLTAGE (11 - 14V)
[Engine is running] 
  • Engine speed is between 1, 800 and 3, 600 rpm.
 0 - 1.0V
32 BR EVAP control system pressure sensor [Ignition switch: ON]  Approximately 1.8 - 4.8V
33 Y Camshaft position sensor (PHASE) (Bank 1) [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 is 2, 000 rpm.
 1.0 - 4.0V(1)
G04074586Courtesy of NISSAN MOTOR CO., U.S.A.
34 Y/G Intake air temperature sensor [Engine is running]  Approximately 0 - 4.8V
Output voltage varies with intake air temperature.
40
41
42		 V/W(1)
P/R(2)
R/L
R/W		 Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2		 [Engine is running] 
  • Warm-up condition 
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 BATTERY VOLTAGE (11 - 14V)(1)
G04080414Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Warm-up condition 
  • Engine speed is 2, 000 rpm.
 BATTERY VOLTAGE (11 - 14V)(1)
G04173127Courtesy of NISSAN MOTOR CO., U.S.A.
45 V/R(1)
P/R(2)		 EVAP canister purge volume control solenoid valve [Engine is running] 
  • Idle speed
  • Accelerator pedal is not depressed even slightly, after engine starting.
 BATTERY VOLTAGE (11 - 14V)(1)
G04179935Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Engine speed is about 2, 000 rpm (More than 100 seconds after starting engine).
 BATTERY VOLTAGE (11 - 14V)(1)
G04074109Courtesy of NISSAN MOTOR CO., U.S.A.
47 R Throttle position sensor power supply [Ignition switch: ON]  Approximately 5V
48 G/O EVAP control system pressure sensor power supply [Ignition switch: ON]  Approximately 5V
49 BR/Y Refrigerant pressure sensor power supply [Ignition switch: ON]  Approximately 5V
50 Y Throttle position sensor 1 [Ignition switch: ON] 
  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully released
 More than 0.36V
[Ignition switch: ON] 
  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully depressed
 Less than 4.75V
51 W/L Mass air flow sensor [Engine is running] 
  • Warm-up condition 
  • Idle speed
 1.0 - 1.3V
[Engine is running] 
  • Warm-up condition 
  • Engine speed is 2, 500 rpm.
 1.6 - 2.0V
54 P/L EGR temperature sensor [Ignition switch: ON]  Less than 4.5V
[Engine is running] 
  • Warm-up condition 
  • EGR system is operating.
 0 - 1.5V
55 W 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 warning 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 - Approximately 1.0V
57 W/R A/F sensor 1 (Bank 2) [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 2.6V
58 LG/R Approximately 2.3V
76 O Approximately 3.1V
77 LG Approximately 2.3V
60
61
62		 P/L
L/R
Y/R		 Ignition signal No. 5
Ignition signal No. 3
Ignition signal No. 1		 [Engine is running] 
  • Warm-up condition 
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 0 - 0.4V(1)
G04073752Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Warm-up condition 
  • Engine speed is 2, 500 rpm.
 0.1 - 0.6V(1)
G04196468Courtesy of NISSAN MOTOR CO., U.S.A.
66 G Throttle position sensor ground [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 0V
67 B Sensor ground [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 0V
68 BR/W PSP sensor power supply [Ignition switch: ON]  Approximately 5V
69 L Throttle position sensor 2 [Ignition switch: ON] 
  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully released
 Less than 4.75V
[Ignition switch: ON] 
  • Engine stopped
  • Shift lever: D
  • Accelerator pedal: Fully depressed
 More than 0.36V
70 W Refrigerant pressure sensor [Engine is running] 
  • Warm-up condition 
  • Both A/C switch and blower switch: ON (Compressor operates.)
 1.0 - 4.0V
73 Y/B Engine coolant temperature sensor [Engine is running]  Approximately 0 - 4.8V
Output voltage varies with engine coolant temperature.
74 W 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 warning 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 - Approximately 1.0V
78 B Heated oxygen sensor 2 ground [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 0V
79
80
81		 GR/R
GR
G/R		 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 - 0.4V(1)
G04073752Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running] 
  • Warm-up condition 
  • Engine speed is 2, 500 rpm.
 0.1 - 0.6V(1)
G04160879Courtesy of NISSAN MOTOR CO., U.S.A.
82 B APP sensor 1 ground [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 0V
83 G APP sensor 2 ground [Engine is running] 
  • Warm-up condition 
  • Idle speed
 Approximately 0V
85 SB Data link connector [Ignition switch: ON] 
  • CONSULT-II or GST is 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 R/V APP sensor 1 power supply [Ignition switch: ON]  Approximately 5V
91 O APP sensor 2 power supply [Ignition switch: ON]  Approximately 5V
94 L CAN communication line [Ignition switch: ON]  Approximately 2.5 - 3.2V Output voltage varies with the communication status.
98 W/B Accelerator pedal position sensor 2 [Ignition switch: ON] 
  • Engine stopped
  • Accelerator pedal: Fully released
 0.25 - 0.5V
[Ignition switch: ON] 
  • Engine stopped
  • Accelerator pedal: Fully depressed
 2.0 - 2.5V
99 G/Y ASCD steering switch [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 R/G Stop lamp switch [Ignition switch: OFF] 
  • Brake pedal: Fully released
 Approximately 0V
[Ignition switch: OFF] 
  • Brake pedal: Slightly depressed
 BATTERY VOLTAGE (11 - 14V)
102 O/B PNP switch [Ignition switch: ON] 
  • Shift lever: P or N
 BATTERY VOLTAGE (11 - 14V)
[Ignition switch: ON] 
  • Except the above gear position
 Approximately 0V
104 O Throttle control motor relay [Ignition switch: OFF]  BATTERY VOLTAGE (11 - 14V)
[Ignition switch: ON]  0 - 1.0V
106 W 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
 4.2 - 4.8V
107 R/L Fuel tank temperature sensor [Engine is running]  Approximately 0 - 4.8V
Output voltage varies with fuel tank temperature.
108 G/B ASCD brake switch [Ignition switch: ON] 
  • Brake pedal: Fully released
 BATTERY VOLTAGE (11 - 14V)
[Ignition switch: ON] 
  • Brake pedal: Slightly depressed
 Approximately 0V
109 R 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 B/O 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
B		 ECM ground [Engine is running] 
  • Idle speed
 Body ground
117 LG/B EVAP canister vent control valve [Ignition switch: ON]  BATTERY VOLTAGE (11 - 14V)
119
120		 R/G
R/G		 Power supply for ECM [Ignition switch: ON]  BATTERY VOLTAGE (11 - 14V)
121 G Power supply for ECM (Back-up) [Ignition switch: OFF]  BATTERY VOLTAGE (11 - 14V)
(1) 4-speed A/T models
(2) 5-speed A/T models
(3) Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
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