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Physical Values

NOTE:
  • ECM is located behind the instrument assist lower panel. For this inspection, remove passenger side instrument lower panel.
  • Specification data are reference values and are measured between each terminal and ground.
  • Pulse signal is measured by CONSULT-III.
ECU TERMINAL REFERENCE

Terminal No. (Wire color) Description Condition Value (Approx.)
+ - Signal name Input/Output
1 (O) 128 (B) A/F sensor 1 heater (bank 1) Output [Engine is running]
  • Warm-up condition
  • Idle speed (More than 140 seconds after starting engine)
 2.9 - 8.8 V(1)
G05868797Courtesy of NISSAN MOTOR CO., U.S.A.
2 (G) 128 (B) Throttle control motor (Open) (bank 1) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 0 - 14 V(1)
G05733558Courtesy of NISSAN MOTOR CO., U.S.A.
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 0 - 14 V(1)
G05733559Courtesy of NISSAN MOTOR CO., U.S.A.
3 (R) 128 (B) Throttle control motor relay power supply (bank 1) Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
4 (BR) 128 (B) Throttle control motor (Close) (bank 1) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: In the middle of releasing operation
 0 - 14 V(1)
G05733557Courtesy of NISSAN MOTOR CO., U.S.A.
5 (W) 128 (B) A/F sensor 1 heater (bank 2) Output [Engine is running]
  • Warm-up condition
  • Idle speed (More than 140 seconds after starting engine)
 2.9 - 8.8 V(1)
G05868797Courtesy of NISSAN MOTOR CO., U.S.A.
8 (B) - ECM ground - - -
11 (GR) 128 (B) Ignition signal No. 4 Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on RPM at idle
 0 - 0.2 V(1)
G04886600Courtesy of NISSAN MOTOR CO., U.S.A.
12 (L) Ignition signal No. 3
15 (V) Ignition signal No. 5
16 (G) Ignition signal No. 2 [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
 0.1 - 0.4 V(1)
G05733548Courtesy of NISSAN MOTOR CO., U.S.A.
19 (SB) Ignition signal No. 6
20 (Y) Ignition signal No. 1
17 (P) 128 (B) Heated oxygen sensor 2 heater (bank 1) Output [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
 10 V(1)
G05696276Courtesy of NISSAN MOTOR CO., U.S.A.
[Ignition switch: ON]
  • Engine stopped

[Engine is running]
  • Engine speed: Above 3, 600 RPM
 BATTERY VOLTAGE (11 - 14 V)
18 (W) 128 (B) Intake valve timing control solenoid valve (bank 1) Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE (11 - 14 V)
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
 7 - 12 V(1)
G05733550Courtesy of NISSAN MOTOR CO., U.S.A.
21 (GR) 128 (B) EVAP canister purge volume control solenoid valve Output [Engine is running]
  • Idle speed
  • Accelerator pedal: Not depressed even slightly, after engine starting
 BATTERY VOLTAGE (11 - 14 V)(1)
G05733551Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: About 2, 000 RPM (More than 100 seconds after starting engine)
 BATTERY VOLTAGE (11 - 14 V)(1)
G05733552Courtesy of NISSAN MOTOR CO., U.S.A.
22 (R) 128 (B) Fuel pump relay Output [Ignition switch: ON]
  • For 1 second after turning ignition switch ON

[Engine is running]		 0 - 1.5 V
[Ignition switch: ON]
  • More than 1 second after turning ignition switch ON
 BATTERY VOLTAGE (11 - 14 V)
24 (P) 128 (B) ECM relay (Self shut-off) Output [Engine is running]
[Ignition switch: OFF]
  • A few seconds after turning ignition switch OFF
 0 - 1.5 V
[Ignition switch: OFF]
  • More than a few seconds after turning ignition switch OFF
 BATTERY VOLTAGE (11 - 14 V)
25 (O) 128 (B) Throttle control motor relay Output [Ignition switch: ON → OFF] 0 - 1.0 V
↓
BATTERY VOLTAGE (11 - 14 V)
↓
0 V
[Ignition switch: ON] 0 - 1.0 V
26 (W) 128 (B) Gear lever position sensor X-axis Input [Ignition switch: ON]
  • Engine stopped
  • Shift lever: N→1st→2nd→3rd→4th→5th→6th→R
 N: 1.45 - 2.35 V
1st: 0.90 - 1.40 V
2nd: 0.90 - 1.35 V
3rd: 1.70 - 2.15 V
4th: 1.65 - 2.10 V
5th: 2.70 - 3.15 V
6th: 2.65 - 3.10 V
R: 3.50 - 4.05 V
27 (G) 128 (B) Gear lever position sensor Y-axis Input [Ignition switch: ON]
  • Engine stopped
  • Shift lever: N→1st→2nd→3rd→4th→5th→6th→R
 N: 2.15 - 3.00 V
1st: 1.10 - 1.60 V
2nd: 3.40 - 3.90 V
3rd: 1.10 - 1.65 V
4th: 3.40 - 3.90 V
5th: 1.10 - 1.60 V
6th: 3.40 - 3.90 V
R: 3.40 - 3.90 V
28 (BR) 128 (B) VVEL actuator motor relay abort signal [VVEL control module] Output [Engine is running]
  • Warm-up condition
  • Idle speed
 0 V
29 (G) 128 (B) Intake valve timing control solenoid valve (bank 2) Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE (11 - 14 V)
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
 7 - 12 V(1)
G05733550Courtesy of NISSAN MOTOR CO., U.S.A.
30 (Y) 40 (R) Throttle position sensor 1 (bank 1) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 More than 0.36 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 Less than 4.75 V
31 (R) 48 (B) Throttle position sensor 1 (bank 2) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 More than 0.36 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 Less than 4.75 V
33 (SB) 128 (B) Heated oxygen sensor 2 heater (bank 2) Output [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
 10 V(1)
G05696276Courtesy of NISSAN MOTOR CO., U.S.A.
[Ignition switch: ON]
  • Engine stopped

[Engine is running]
  • Engine speed: Above 3, 600 RPM
 BATTERY VOLTAGE (11 - 14 V)
34 (B) 40 (R) Throttle position sensor 2 (bank 1) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 Less than 4.75 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 More than 0.36 V
35 (W) 48 (B) Throttle position sensor 2 (bank 2) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 Less than 4.75 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 More than 0.36 V
36 (O) - Sensor ground [Brake booster pressure sensor] - - -
37 (W) 128 (B) Crankshaft position sensor (POS) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on RPM at idle
 4.0 - 5.0 V(1)
G05733555Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: 2, 000 RPM
 4.0 - 5.0 V(1)
G05733556Courtesy of NISSAN MOTOR CO., U.S.A.
38 (O) 96 (P) Manifold absolute pressure (MAP) sensor Input [Engine is running]
  • Warm-up condition
  • Idle speed
 1.2 V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
 1.5 V
39 (P) 36 (O) Brake booster pressure sensor Input [Engine is running]
  • Warm-up condition
  • Idle speed
  • Brake pedal: Fully released
 1.2 V
[Engine is running]
  • Warm-up condition
  • Idle speed
  • Brake pedal: Fully depressed
 3.0 V
40 (R) - Sensor ground [Throttle position sensor (bank 1)] - - -
41 (SB) 128 (B) Clutch pedal position switch Input [Ignition switch: ON]
  • Engine stopped
  • Clutch pedal: Fully released
 0 V
[Ignition switch: ON]
  • Engine stopped
  • Clutch pedal: Fully depressed
 BATTERY VOLTAGE (11 - 14 V)
42 (GR) 128 (B) Clutch interlock switch Input [Ignition switch: ON]
  • Engine stopped
  • Clutch pedal: Fully released
 0 V
[Ignition switch: ON]
  • Engine stopped
  • Clutch pedal: Fully depressed
 BATTERY VOLTAGE (11 - 14 V)
43 (G) 48 (B) Sensor power supply [Throttle position sensor (bank 2)] - [Ignition switch: ON] 5 V
44 (L) 40 (R) Sensor power supply [Throttle position sensor (bank 1)] - [Ignition switch: ON] 5 V
45 (LG) 36 (O) Sensor power supply [Brake booster pressure sensor] - [Ignition switch: ON] 5 V
46 (R) 128 (B) Sensor power supply [Crankshaft position sensor (POS)] - [Ignition switch: ON] 5 V
47 (Y) - Sensor ground [Crankshaft position sensor (POS)] - - -
48 (B) - Sensor ground [Throttle position sensor (bank 2)] - - -
49 (GR) 128 (B) Throttle control motor (Close) (bank 2) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: In the middle of releasing operation
 0 - 14 V(1)
G05733557Courtesy of NISSAN MOTOR CO., U.S.A.
50 (V) 128 (B) Throttle control motor (Open) (bank 2) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 0 - 14 V(1)
G05733558Courtesy of NISSAN MOTOR CO., U.S.A.
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 0 - 14 V(1)
G05733559Courtesy of NISSAN MOTOR CO., U.S.A.
52 (R) 128 (B) Throttle control motor relay power supply (bank 2) Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
53 (W) 128 (B) Ignition switch Input [Ignition switch: OFF] 0 V
[Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
54 (Y) - CAN communication line [VVEL control module] Input/output - -
55 (LG) - CAN communication line [VVEL control module] Input/output - -
57 (L) 128 (B) A/F sensor 1 (bank 1) Input [Ignition switch: ON] 2.2 V
59 (O) 128 (B) Camshaft position sensor (PHASE) (bank 1) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on RPM at idle
 3.0 - 5.0 V(1)
G05733560Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: 2, 000 RPM
 3.0 - 5.0 V(1)
G05733561Courtesy of NISSAN MOTOR CO., U.S.A.
60 (G) 128 (B) Sensor power supply [Camshaft position sensor (PHASE) (bank 1), Manifold absolute pressure (MAP) sensor, Power steering pressure sensor] - [Ignition switch: ON] 5 V
61 (R) 128 (B) A/F sensor 1 (bank 1) Input [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
 1.8 V
Output voltage varies with air fuel ratio.
63 (L) 128 (B) Camshaft position sensor (PHASE) (bank 2) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on RPM at idle
 3.0 - 5.0 V(1)
G05733560Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: 2, 000 RPM
 3.0 - 5.0 V(1)
G05733561Courtesy of NISSAN MOTOR CO., U.S.A.
64 (SB) 128 (B) Sensor power supply [Camshaft position sensor (PHASE) (bank 2)] - [Ignition switch: ON] 5 V
65 (LG) 128 (B) A/F sensor 1 (bank 2) Input [Ignition switch: ON] 2.2 V
66 (V) 128 (B) A/F sensor 1 (bank 2) Input [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
 1.8 V
Output voltage varies with air fuel ratio.
67 (P) 128 (B) Intake air temperature sensor (bank 1) Input [Engine is running] 0 - 4.8 V
Output voltage varies with intake air temperature.
68 (LG) - Sensor ground [Mass air flow sensor (bank 1), Intake air temperature sensor (bank 1)] - - -
69 (W) 128 (B) Knock sensor (bank 2) Input [Engine is running]
  • Idle speed
 2.5 V(2)
71 (Y) 128 (B) Engine coolant temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine coolant temperature.
72 (-) - Sensor ground (Knock sensor) - - -
73 (W) 128 (B) Knock sensor (bank 1) Input [Engine is running]
  • Idle speed
 2.5 V(2)
74 (L) 128 (B) Sensor power supply (Gear lever position sensor) - [Ignition switch: ON] 5 V
75 (W) 128 (B) Input speed sensor Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on RPM at idle
 0.25 V(1)
G06049592Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: 2, 000 RPM
 0.25 V(1)
G06049593Courtesy of NISSAN MOTOR CO., U.S.A.
76 (W) 128 (B) Heated oxygen sensor 2 (bank 1) Input [Engine is running]
  • Revving engine from idle to 3, 000 RPM quickly 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 - 1.0 V
77 (SB) 68 (LG) Mass air flow sensor (bank 1) Input [Engine is running]
  • Warm-up condition
  • Idle speed
 0.7 - 1.2 V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 RPM
 1.3 - 1.7 V
78 (G) 84 (B) Engine oil temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine oil temperature.
79 (BR) 94 (Y) Mass air flow sensor (bank 2) Input [Engine is running]
  • Warm-up condition
  • Idle speed
 0.7 - 1.2 V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 RPM
 1.3 - 1.7 V
80 (O) 128 (B) Heated oxygen sensor 2 (bank 2) Input [Engine is running]
  • Revving engine from idle to 3, 000 RPM quickly 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 - 1.0 V
81 (R) 128 (B) Fuel injector No. 3 Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on RPM at idle
 BATTERY VOLTAGE (11 - 14 V)(1)
G05735673Courtesy of NISSAN MOTOR CO., U.S.A.
82 (V) Fuel injector No. 6
85 (BR) Fuel injector No. 2
86 (W) Fuel injector No. 5 [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
 BATTERY VOLTAGE (11 - 14 V)(1)
G05733565Courtesy of NISSAN MOTOR CO., U.S.A.
89 (GR) Fuel injector No. 1
90 (O) Fuel injector No. 4
83(3) (LG) - - - - -
84 (B) - Sensor ground (Heated oxygen sensor 2, Engine coolant temperature sensor, Engine oil temperature sensor, Input speed sensor) - - -
87 (Y) 96 (P) Power steering pressure sensor Output [Engine is running]
  • Steering wheel: Being turned
 0.5 - 4.5 V
[Engine is running]
  • Steering wheel: Not being turned
 0.4 - 0.8 V
88 (R) - Sensor ground (Gear lever position sensor) - - -
92 (G) - Sensor ground [Camshaft position sensor (PHASE) (bank 2)] - - -
93 (P) 128 (B) Power supply for ECM (Back-up) Input [Ignition switch: OFF] BATTERY VOLTAGE (11 - 14 V)
94 (Y) - Sensor ground [Mass air flow sensor (bank 2)] - - -
96 (P) - Sensor ground [Camshaft position sensor (PHASE) (bank 1), Manifold absolute pressure (MAP) sensor, Power steering pressure sensor] - - -
97 (R) 100 (W) Accelerator pedal position sensor 1 Input [Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully released
 0.45 - 1.00 V
[Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully depressed
 4.2 - 4.8 V
98 (P) 104 (GR) Accelerator pedal position sensor 2 Input [Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully released
 0.22 - 0.50 V
[Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully depressed
 2.1 - 2.5 V
99 (L) 100 (W) Sensor power supply (Accelerator pedal position sensor 1) - [Ignition switch: ON] 5 V
100 (W) - Sensor ground (Accelerator pedal position sensor 1) - - -
101 (SB) 108 (Y) ASCD steering switch (models with ASCD system) Input [Ignition switch: ON]
  • ASCD steering switch: OFF
 4 V
[Ignition switch: ON]
  • MAIN switch: Pressed
 0 V
[Ignition switch: ON]
  • CANCEL switch: Pressed
 1 V
[Ignition switch: ON]
  • RESUME/ACCELERATE switch: Pressed
 3 V
[Ignition switch: ON]
  • SET/COAST switch: Pressed
 2 V
102 (GR) 112 (SB) EVAP control system pressure sensor Input [Ignition switch: ON] 1.8 - 4.8 V
103 (G) 104 (GR) Sensor power supply (Accelerator pedal position sensor 2) - [Ignition switch: ON] 5 V
104 (GR) - Sensor ground (Accelerator pedal position sensor 2) - - -
105 (L) 112 (SB) Refrigerant pressure sensor Input [Engine is running]
  • Warm-up condition
  • Both A/C switch and blower fan motor switch: ON (Compressor operates)
 1.0 - 4.0 V
106 (W) 128 (B) Fuel tank temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with fuel tank temperature.
107 (BR) 112 (SB) Sensor power supply (EVAP control system pressure sensor, Refrigerant pressure sensor) - [Ignition switch: ON] 5 V
108 (Y) - Sensor ground (ASCD steering switch) - - -
109 (G) 128 (B) PNP switch Input [Ignition switch: ON]
  • Selector lever: P or N (A/T), Neutral (M/T)
 BATTERY VOLTAGE (11 - 14 V)
[Ignition switch: ON]
  • Selector lever: Except above
 0 V
110 (R) 128 (B) Engine speed output signal Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on RPM at idle
 1 V(1)
G05729712Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed is 2, 000 RPM
 1 V(1)
G05729713Courtesy of NISSAN MOTOR CO., U.S.A.
112 (SB) - Sensor ground (EVAP control system pressure sensor, Refrigerant pressure sensor) - - -
113 (P) - CAN communication line Input/Output - -
114 (L) - CAN communication line Input/Output - -
117 (Y) 128 (B) Data link connector Input/Output [Ignition switch: ON]
  • GST: Disconnected
 5 V - BATTERY VOLTAGE (11 - 14 V)
121 (LG) 128 (B) EVAP canister vent control valve Output [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
122 (P) 128 (B) Stop lamp switch Input [Ignition switch: OFF]
  • Brake pedal: Fully released
 0 V
[Ignition switch: OFF]
  • Brake pedal: Slightly depressed
 BATTERY VOLTAGE (11 - 14 V)
123 (B)
124 (B)		 - ECM ground - - -
125 (R) 128 (B) Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
126 (BR) 128 (B) ASCD brake switch (models with ASCD system) Input [Ignition switch: ON]
  • Brake pedal: Slightly depressed
 0 V
[Ignition switch: ON]
  • Brake pedal: Fully released
 BATTERY VOLTAGE (11 - 14 V)
127 (B)
128 (B)		 - ECM ground - - -
(1) Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
(2) This may vary depending on internal resistance of the tester.
(3) This harness is not used.
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