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Physical Values

NOTE:
  • ECM is located in the engine room left side near inverter with converter assembly.
  • Specification data are reference values and are measured between each terminal and ground.
  • Pulse signal is measured by CONSULT-III.
  • If necessary, activate "INSPECTION MODE 1 " ).
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.
VOLTAGE SPECIFICATION

Terminal No. Wire color Description Condition Value (Approx.)
+ - Signal name Input/Output
2 Ground G/W Throttle control motor relay power supply Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14V)
4 Ground BR/Y A/F sensor 1 heater Output [Engine is running]
  • Warm-up condition
  • Idle speed (More than 140 seconds after starting engine)
 2.9 - 8.8V (1)
G04886955Courtesy of NISSAN MOTOR CO., U.S.A.
5 Ground L Throttle control motor (Open) Output [Ignition switch: ON]
  • Selector lever: D
  • Accelerator pedal: Fully depressed
 0 - 14V (1)
G04886956Courtesy of NISSAN MOTOR CO., U.S.A.
6 Ground P Throttle control motor (Close) Output [Ignition switch: ON]
  • Selector lever: D
  • Accelerator pedal: Fully released
 0 - 14V (1)
G04886957Courtesy of NISSAN MOTOR CO., U.S.A.
9
10
11
21		 Ground L/B
G/R
Y/R
G/Y		 Ignition signal No. 3
Ignition signal No. 2
Ignition signal No. 1
Ignition signal No. 4		 Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 0 - 0.2V (1)
G05030045Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2,500 rpm
 0 - 0.3V (1)
G05030046Courtesy of NISSAN MOTOR CO., U.S.A.
12
16		 Ground B ECM ground - [Engine is running]
  • Idle speed
 Body ground
13 Ground R Heated oxygen sensor 2 heater Output [Engine is running]
  • Engine speed: Below 3,600 rpm after the following conditions are met
    • Engine: after warming up
    • Driving for 3 minutes at a speed of 80 km/h (50 MPH) or more (Keep the vehicle speed as steady as possible during the cruising.)
 10V (1)
G04886629Courtesy of NISSAN MOTOR CO., U.S.A.
[Ignition switch: ON]
  • Engine stopped

[Engine is running]
  • Engine speed: Above 3,600 rpm
 BATTERY VOLTAGE (11 - 14V)
14 Ground B/R Fuel pump relay Output [Ignition switch: ON]
  • For 1 second after turning ignition switch ON

[Engine is running]		 0 - 1.0V
[Ignition switch: ON]
  • More than 1 second after turning ignition switch ON
 BATTERY VOLTAGE (11 - 14V)
15 Ground O Throttle control motor relay Output [Ignition switch: ON → OFF] 0 - 1.0V
↓
BATTERY VOLTAGE (11 - 14V)
↓
0V
[Ignition switch: ON] 0 - 1.0V
17 Ground L Heated oxygen sensor 3 heater Output [Engine is running]
  • Engine speed: Below 3,600 rpm after the following conditions are met
    • Engine: after warming up
    • Driving for 3 minutes at a speed of 80 km/h (50 MPH) or more (Keep the vehicle speed as steady as possible during the cruising.)
 10V (1)
G04886629Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: Above 3,600 rpm

[Ignition switch: ON]		 BATTERY VOLTAGE (11 - 14V)
24 Ground W/B ECM relay (Self shut-off) Output [Engine is running]
[Ignition switch: OFF]
  • A few seconds after turning ignition switch OFF
 0 - 1.0V
[Ignition switch: OFF]
  • More than a few seconds after turning ignition switch OFF
 BATTERY VOLTAGE (11 - 14V)
25 Ground P/L EVAP canister purge volume control solenoid valve Output [Engine is running]
  • Idle speed
 BATTERY VOLTAGE (11 - 14V) (1)
G04886962Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • 150 seconds or more after turning ignition switch ON (READY)
  • Vehicle speed: 70 km/h (43MPH) or more
  • Accelerator pedal: Depressed
 BATTERY VOLTAGE (11 - 14V) (1)
G04886963Courtesy of NISSAN MOTOR CO., U.S.A.
29
30
31
32		 Ground LG/R
R/Y
R/W
R/B		 Fuel injector No. 4
Fuel injector No. 3
Fuel injector No. 2
Fuel injector No. 1		 Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 BATTERY VOLTAGE (11 - 14V) (1)
G04886964Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2,500 rpm
 BATTERY VOLTAGE (11 - 14V) (1)
G04886965Courtesy of NISSAN MOTOR CO., U.S.A.
33 Ground LG Heated oxygen sensor 2 Input [Engine is running]
  • Revving engine from idle to 2,500 rpm quickly after the following conditions are met
    • Engine: after warming up
    • Driving for 3 minutes at a speed of 80 km/h (50 MPH) or more (Keep the vehicle speed as steady as possible during the cruising.)
 0 - 1.0V
34 Ground W/L Heated oxygen sensor 3 Input [Engine is running]
  • Engine running after the following conditions are met
    • Engine: after warming up
    • Driving for 3 minutes at a speed of 80 km/h (50 MPH) or more (Keep the vehicle speed as steady as possible during the cruising.)
 0 - 1.0V
35 Ground B/Y Sensor ground (Heated oxygen sensor 2, Heated oxygen sensor 3) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
36 Ground B Sensor ground (Throttle position sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
37 Ground W Throttle position sensor 1 Input [Ignition switch: ON]
  • Selector lever: D
  • Accelerator pedal: Fully released
 More than 0.36V
[Ignition switch: ON]
  • Selector lever: D
  • Accelerator pedal: Fully depressed
 Less than 4.75V
38 Ground R Throttle position sensor 2 Input [Ignition switch: ON]
  • Selector lever: D
  • Accelerator pedal: Fully released
 Less than 4.75V
[Ignition switch: ON]
  • Selector lever: D
  • Accelerator pedal: Fully depressed
 More than 0.36V
39 Ground R Refrigerant pressure sensor Input [Engine is running]
  • Warm-up condition
  • Both A/C switch and blower fan motor switch: ON (Compressor operates)
 1.0 - 4.0V
40 Ground G Sensor ground (Refrigerant pressure sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
45 Ground B/W A/F sensor 1 (bank 1) Input [Ignition switch: ON] 2.2V
46 Ground Y Engine coolant temperature sensor Input [Engine is running] 0 - 4.8V
Output voltage varies with engine coolant temperature.
47 Ground B Sensor power supply (Throttle position sensor) - [Ignition switch: ON] 5V
49 Ground L A/F sensor 1 Input [Engine is running]
  • Warm-up condition
  • Engine speed: 2,500 rpm
 1.8V
Output voltage varies with air fuel ratio.
50 Ground L/Y Intake air temperature sensor Input [Engine is running] 0 - 4.8V
Output voltage varies with intake air temperature.
52 Ground LG Sensor ground (Engine coolant temperature sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
56 Ground G/B Sensor ground (Mass air flow sensor, Intake air temperature sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
58 Ground O Mass air flow sensor Input [Engine is running]
  • Warm-up condition
  • Selector lever: N
  • Idle speed
 0.9 - 1.2V
[Engine is running]
  • Warm-up condition
  • Selector lever: P
  • Engine speed: 2,500 rpm
 1.5 - 1.8V
59 Ground G/W Sensor power supply [Camshaft position sensor (PHASE)] - [Ignition switch: ON] 5V
60 Ground Y/B Sensor ground [Crankshaft position sensor (POS)] - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
61 Ground W Knock sensor Input [Engine is running]
  • Idle speed
 2.5V
64 Ground B/R Sensor ground [Camshaft position sensor (PHASE)] - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
65 Ground W Crankshaft position sensor (POS) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 1.0 - 6.0 (1)
G05030053Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: 2,500 rpm
 1.0 - 6.0 (1)
G05030054Courtesy of NISSAN MOTOR CO., U.S.A.
67 Ground - Sensor ground (Knock sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
69 Ground W/R Camshaft position sensor (PHASE) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 1.0 - 6.0 (1)
G05030055Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed is 2,500 rpm
 1.0 - 6.0 (1)
G05030056Courtesy of NISSAN MOTOR CO., U.S.A.
72 Ground LG/B Sensor power supply (Refrigerant pressure sensor) - [Ignition switch: ON] 5V
73 Ground BR CAN communication line Input/Output - -
74 Ground Y CAN communication line Input/Output - -
76 Ground R/G Sensor power supply [Crankshaft position sensor (POS)] - [Ignition switch: ON] 5V
77 Ground W/L Power supply for ECM (Back-up) Input [Ignition switch: OFF] BATTERY VOLTAGE (11 - 14V)
78 Ground R/L Intake valve timing control solenoid valve Output [Engine is running]
  • Warm-up condition
  • Idle speed
 7 - 10V (1)
G04886970Courtesy of NISSAN MOTOR CO., U.S.A.
85 Ground G/Y ASCD steering switch Input [Ignition switch: ON]
  • ASCD steering switch: OFF
 4V
[Ignition switch: ON]
  • MAIN switch: Pressed
 0V
[Ignition switch: ON]
  • CANCEL switch: Pressed
 1V
[Ignition switch: ON]
  • RESUME/ACCELERATE switch: Pressed
 3V
[Ignition switch: ON]
  • SET/COAST switch: Pressed
 2V
86 Ground LG EVAP control system pressure sensor Input [Ignition switch: ON] 1.8 - 4.8V
88 Ground W Data link connector Input/Output - -
91 Ground BR/L Sensor power supply (EVAP control system pressure sensor) - [Ignition switch: ON] 5V
92 Ground R Sensor ground (ASCD steering switch) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
93 Ground L/Y Ignition switch Input [Ignition switch: OFF] 0V
[Ignition switch: ON] BATTERY VOLTAGE (11 - 14V)
95 Ground R/Y Fuel tank temperature sensor Input [Engine is running] 0 - 4.8V
Output voltage varies with fuel tank temperature.
96 Ground V Sensor ground (EVAP control system pressure sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
97 Ground P CAN communication line Input/Output - -
98 Ground L CAN communication line Input/Output - -
99 Ground P Engine speed signal output Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 0 - 14V (1)
G05030058Courtesy of NISSAN MOTOR CO., U.S.A.
103 Ground L Engine TDC signal output Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 0 - 14V (1)
G05030059Courtesy of NISSAN MOTOR CO., U.S.A.
104 Ground B/W Sensor ground (Fuel tank temperature sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
105 Ground R/G Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14V)
106 Ground SB Stop lamp switch Input [Ignition switch: OFF]
  • Brake pedal: Fully released
 0V
[Ignition switch: OFF]
  • Brake pedal: Slightly depressed
 BATTERY VOLTAGE (11 - 14V)
107
108		 Ground B
B		 ECM ground - [Engine is running]
  • Idle speed
 Body ground
109 Ground LG EVAP canister vent control valve Output [Ignition switch: ON] BATTERY VOLTAGE (11 - 14V)
110 Ground G/B ASCD brake switch Input [Ignition switch: ON]
  • Brake pedal: Slightly depressed
 0V
[Ignition switch: ON]
  • Brake pedal: Fully released
 BATTERY VOLTAGE (11 - 14V)
111
112		 Ground B
B		 ECM ground - [Engine is running]
  • Idle speed
 Body ground
(1) Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
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