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Home >> Infiniti >> 2012 >> QX56 RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction (For MEXICO) >> Ecu Diagnosis Information >> ECM >> Reference Value >> Physical Values
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Physical Values

NOTE:
  • Specification data are reference values and are measured between each terminals.
  • Pulse signal is measured by CONSULT.
Terminal No. (Wire color) Description Condition Value (Approx.)
+ - Signal name Input/Output
1 (R)
2 (R)		 175 (B) Fuel injector No. 8 (HI)
Fuel injector No. 5 (HI)		 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)
G08257005Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257006Courtesy of NISSAN NORTH AMERICA, INC.
3 (G)
4 (G)		 175 (B) Fuel injector No. 3 (LO)
Fuel injector No. 2 (LO)		 Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257007Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257008Courtesy of NISSAN NORTH AMERICA, INC.
5 (B/R) - ECM ground - - -
6 (R)
7 (R)		 175 (B) Fuel injector No. 3 (HI)
Fuel injector No. 2 (HI)		 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)
G08257009Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257010Courtesy of NISSAN NORTH AMERICA, INC.
8 (G)
9 (G)		 175 (B) Fuel injector No. 8 (LO)
Fuel injector No. 5 (LO)		 Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257011Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257012Courtesy of NISSAN NORTH AMERICA, INC.
10 (B) - ECM ground - - -
11 (BR) 175 (B) PNP switch Input [Ignition switch: ON]
  • Selector lever: P or N position
 BATTERY VOLTAGE (11 - 14 V)
[Ignition switch: ON]
  • Selector lever: Except above position
 0 V
12 (Y)
13 (L/B)
14 (BR/Y)
15 (LG/R)		 175 (B) Ignition signal No. 1
Ignition signal No. 2
Ignition signal No. 3
Ignition signal No. 4		 Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 0 - 0.2 V(1)
G08257013Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 0.1 - 0.4 V(1)
G08257014Courtesy of NISSAN NORTH AMERICA, INC.
17 (P/L)
18 (Y/R)
19 (G/Y)
20 (O)		 175 (B) Ignition signal No. 5
Ignition signal No. 6
Ignition signal No. 7
Ignition signal No. 8		 Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 0 - 0.2 V(1)
G08257015Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 0.1 - 0.4 V(1)
G08257016Courtesy of NISSAN NORTH AMERICA, INC.
21 (G/O) 25 (LG) Intake air temperature sensor Input [Engine is running] 0 - 4.8 V Output voltage varies with intake air temperature.
22 (BR/W) 25 (LG) Mass air flow sensor 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
 1.4 - 1.9 V
23 (V) 45 (L/O) Low fuel pressure sensor Input [Engine is running]
  • Warm-up condition
  • Idle speed
 2.4 - 3.6 V
G08257017Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 2.4 - 3.6 V
G08257018Courtesy of NISSAN NORTH AMERICA, INC.
25 (LG) - Sensor ground [Mass air flow sensor/Intake air temperature sensor] - - -
27 (P) 45 (L/O) Sensor power supply (Power steering pressure sensor/Low fuel pressure sensor/Electrically-controlled cooling fan coupling) - [Ignition switch: ON] 5 V
28 (SB) 40 (W/L) Sensor power supply (Fuel rail pressure sensor/Engine oil pressure sensor) - [Ignition switch: ON] 5 V
29 (W) 35 (-) Knock sensor (bank 1) Input [Engine is running]
  • Idle speed
 2.0 V(2)
31 (V/W) 40 (W/L) Fuel rail pressure sensor Input [Engine is running]
  • Warm-up condition
  • Idle speed
 0.82 - 1.22 V
[Engine is running]
  • Warm-up condition
  • Revving engine from idle to 4, 000 rpm quickly
 0.82 - 3.06 V
32 (R) 40 (W/L) Engine coolant temperature sensor Input [Engine is running] 0 - 4.8 V Output voltage varies with engine coolant temperature.
33 (W) 35 (-) Knock sensor (bank 2) Input [Engine is running]
  • Idle speed
 2.0 V(2)
35 (-) - Sensor ground (Knock sensor) - - -
37 (V) 175 (B) Cooling fan speed Input [Ignition switch: ON]
  • Engine stopped
 5 V
[Engine is running]
  • Idle speed
  • After warm-up condition
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257019Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Idle speed
  • Before warm-up condition
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257020Courtesy of NISSAN NORTH AMERICA, INC.
39 (P/B) 45 (L/O) Power steering pressure sensor Input [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
40 (W/L) - Sensor ground (Fuel rail pressure sensor/Engine coolant temperature sensor/Engine oil temperature sensor) - - -
42 (L/Y) 40 (W/L) Engine oil temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine oil temperature.
45 (L/O) - Sensor ground (Power steering pressure sensor/Low fuel pressure sensor/Electrically-controlled cooling fan coupling) - - -
46 (SB) 175 (B) Fuel injector driver power supply Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
[Ignition switch: OFF] 1.5 V
47 (G) 175 (B) Heated oxygen sensor 2 heater (bank 1) Input [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)
G08257021Courtesy of NISSAN NORTH AMERICA, INC.
[Ignition switch: ON]
  • Engine: Stopped

    [Engine is running]

  • Engine speed: Above 3, 600 rpm
 BATTERY VOLTAGE (11 - 14 V)
48 (L/W) 175 (B) A/F sensor 1 heater (bank 1) Input [Engine is running]
  • Warm-up condition
  • Idle speed

(More than 140 seconds after starting engine)		 2.9 - 8.8 V(1)
G08257022Courtesy of NISSAN NORTH AMERICA, INC.
49 (LG/B) 175 (B) Intake valve timing control solenoid valve (bank 1) Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257023Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000rpm
 7 - 12 V(1)
51 (R) 175 (B) Fuel injector driver power supply Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE (11 - 14 V)
[Ignition switch: OFF] 1.5 V
52 (L/R) 175 (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)
G08257024Courtesy of NISSAN NORTH AMERICA, INC.
[Ignition switch: ON]
  • Engine: Stopped

    [Engine is running]

  • Engine speed: Above 3, 600 rpm
 BATTERY VOLTAGE (11 - 14 V)
53 (SB) 175 (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)
G08257025Courtesy of NISSAN NORTH AMERICA, INC.
54 (G/R) 175 (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, 000rpm
 7 - 12 V(1)
G08257026Courtesy of NISSAN NORTH AMERICA, INC.
57 (W) 175 (B) Throttle control motor (Open) Output [Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
 0 - 14 V(1)
G08257027Courtesy of NISSAN NORTH AMERICA, INC.
[Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: Fully released
 0 - 14 V(1)
G08257028Courtesy of NISSAN NORTH AMERICA, INC.
60 (B) - Shield - - -
63 (R) 175 (B) Throttle control motor (Close) Output [Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: In the middle of releasing operation
 0 - 14 V(1)
G08257029Courtesy of NISSAN NORTH AMERICA, INC.
64 (V/W) 175 (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)
G08257030Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Engine speed: About 2, 000 rpm (More than 100 seconds after starting engine)
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257031Courtesy of NISSAN NORTH AMERICA, INC.
67 (V) 175 (B) Manifold absolute pressure 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
68 (BR/W) - Sensor ground
[Camshaft position sensor (bank 1)]		 - - -
70 (W/L) - Sensor ground (Manifold absolute pressure sensor) - - -
73 (P) 99 (LG/B) Camshaft position sensor (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)
G08257032Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Engine speed: 2, 000 rpm
 3.0 - 5.0 V(1)
G08257033Courtesy of NISSAN NORTH AMERICA, INC.
74 (L) 175 (B) A/F sensor 1 (bank 2) Input [Ignition switch: ON] 2.5 V
76 (W/G) 98 (G/W) Sensor power supply (Crankshaft position sensor) - [Ignition switch: ON] 5 V
77 (Y/R) 68 (BR/W) Sensor power supply [Camshaft position sensor (bank 1)] - [Ignition switch: ON] 5 V
78 (L/R) 175 (B) A/F sensor 1 (bank 2) Input [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 2.2 - 2.8V
Output voltage varies with air fuel ratio.
79 (B) 97 (W) Throttle position sensor 2 Input [Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: Fully released
 Less than 4.75 V
[Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: Fully depressed
 More than 0.36 V
80 (L/W) 175 (B) A/F sensor 1 (bank 2) Input [Ignition switch: ON] 3.0 V
81 (G) 97 (W) Sensor power supply [Throttle position sensor (bank 1)] - [Ignition switch: ON] 5 V
83 (LG/R) 99 (LG/B) Sensor power supply [Camshaft position sensor (bank 2)] - [Ignition switch: ON] 5 V
85 (GR/R) 70 (W/L) Sensor power supply (Manifold absolute pressure sensor) - [Ignition switch: ON] 5 V
86 (R/W) 98 (G/W) Crankshaft position sensor 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)
G08257034Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Engine speed: 2, 000 rpm
 4.0 - 5.0 V(1)
G08257035Courtesy of NISSAN NORTH AMERICA, INC.
87 (L/W) 100 (R) 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
88 (B) 175 (B) A/F sensor 1 (bank 1) Input [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 2.2 - 2.8 V Output voltage varies with air fuel ratio.
90 (W) 175 (B) A/F sensor 1 (bank 1) Input [Ignition switch: ON] 3 0 V
91 (R) 97 (W) Throttle position sensor 1 Input [Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: Fully released
 More than 0.36 V
[Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: Fully depressed
 Less than 4.75 V
94 (R) 175 (B) A/F sensor 1 (bank 1) Input [Ignition switch: ON] 2.0 V
95 (L/R) 68 (BR/W) Camshaft position sensor (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)
G08257036Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Engine speed: 2, 000 rpm
 3.0 - 5.0 V(1)
G08257037Courtesy of NISSAN NORTH AMERICA, INC.
96 (W/R) 100 (R) 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
97 (W) - Sensor ground [Throttle position sensor (bank 1)] - - -
98 (G/W) - Sensor ground (Crankshaft position sensor) - - -
99 (LG/B) - Sensor ground [Camshaft position sensor (bank 2)] - - -
100 (R) - Sensor ground (Heated oxygen sensor 2) - - -
101 (R)
102 (R)		 175 (B) Fuel injector No. 1 (HI)
Fuel injector No. 6 (HI)		 Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257038Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257039Courtesy of NISSAN NORTH AMERICA, INC.
103 (G)
104 (G)		 175 (B) Fuel injector No. 7 (LO)
Fuel injector No. 4 (LO)		 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)
G08257040Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257041Courtesy of NISSAN NORTH AMERICA, INC.
105 (L/W) 175 (B) High pressure fuel pump (HI) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257042Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257043Courtesy of NISSAN NORTH AMERICA, INC.
106 (R)
107 (R)		 175 (B) Fuel injector No. 7 (HI)
Fuel injector No. 4 (HI)		 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)
G08257044Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257045Courtesy of NISSAN NORTH AMERICA, INC.
108 (G)
109 (G)		 175 (B) Fuel injector No. 1 (LO)
Fuel injector No. 6 (LO)		 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)
G08257046Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257047Courtesy of NISSAN NORTH AMERICA, INC.
110 (L/B) 175 (B) High pressure fuel pump (LO) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257048Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08257049Courtesy of NISSAN NORTH AMERICA, INC.
111 (R) 175 (B) Fuel injector driver power supply Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
112 (SB) 175 (B) Fuel injector driver power supply Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
114 (B) - ECM ground - - -
115 (B) - ECM ground - - -
120 (Y) 175 (B) EVAP canister vent control valve Output [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
122 (BR/W) 175 (B) VVEL actuator motor relay abort signal (VVEL control module) Input [Ignition switch: ON] 0 V
123 (V/R) 175 (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
125 (GR) 175 (B) Fuel pump control module (FPCM) Output [When cranking engine] 0 - 0.5 V
[Engine is running]
  • Warm-up condition
 0 - 4.0 V
G08257050Courtesy of NISSAN NORTH AMERICA, INC.
126 (O) 129 (P/L) Accelerator pedal position sensor 2 Input [Ignition switch: ON]
  • Engine: Stopped
  • Accelerator pedal: Fully released
 0.25 - 0.5 V
[Ignition switch: ON]
  • Engine: Stopped
  • Accelerator pedal: Fully depressed
 2.0 - 2.5 V
128 (Y) 175 (B) ICC steering switch Input [Ignition switch: ON]
  • ICC steering switch: OFF
 4.2 V
[Ignition switch: ON]
  • MAIN switch: Pressed
 0 V
[Ignition switch: ON]
  • CANCEL switch: Pressed
 1.9 V
[Ignition switch: ON]
  • RESUME/ACCELERATE switch: Pressed
 3.7 V
[Ignition switch: ON]
  • SET/COAST switch: Pressed
 3.2 V
[Ignition switch: ON]
  • DISTANCE switch: Pressed
 2.6 V
[Ignition switch: ON]
  • DYNAMIC DRIVER ASSISTANCE switch: Pressed
 1.0 V
129 (P/L) - Sensor ground (Accelerator pedal position sensor 2) - - -
130 (R) - Sensor ground (ICC steering switch) - - -
131 (L/W) 129 (P/L) Sensor power supply (Accelerator pedal position sensor 2) - [Ignition switch: ON] 5 V
133 (SB) 150 (R) Sensor power supply (Refrigerant pressure sensor/Battery current sensor/EVAP control system pressure sensor) - [Ignition switch: ON] 5 V
134 (V/W) 175 (B) Fuel temperature sensor Input [Engine is running]
  • Warm-up condition
 2.8 V
136 (W/R) 140 (R/Y) Accelerator pedal position sensor 1 Input [Ignition switch: ON]
  • Engine: Stopped
  • Accelerator pedal: Fully released
 0.5 - 1.0 V
[Ignition switch: ON]
  • Engine: Stopped
  • Accelerator pedal: Fully depressed
 4.2 - 4.8 V
137 (W/G) 140 (R/Y) Sensor power supply (Accelerator pedal position sensor 1) - [Ignition switch: ON] 5 V
138 (V) 150 (R) Battery current sensor Input [Engine is running]
  • Battery: Fully charged(3)
  • Idle speed
 2.6 - 3.5 V
139 (G) 175 (B) Battery temperature sensor Input [Engine is running]
  • Battery temperature: 25°C
  • Idle speed
 3.3 V
140 (R/Y) - Sensor ground (Accelerator pedal position sensor 1) - - -
141 (SB) 175 (B) Ignition switch Input [Ignition switch: OFF] 0 V
[Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
142 (R/W) 175 (B) Fuel pump control module (FPCM) check Input [When cranking engine] 0 V
[Engine is running]
  • Warm-up condition
  • Idle speed
 9 V
143 (L/Y) 150 (R) EVAP control system pressure sensor Input [Ignition switch: ON] 1.8 - 4.8 V
144 (O/B) 150 (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 - 4.0 V
146 (L) - CAN communication line - - -
147 (G/Y) 175 (B) ICC brake switch Input [Ignition switch: ON]
  • Brake pedal: Slightly depressed
 0 V
[Ignition switch: ON]
  • Brake pedal: Fully released
 BATTERY VOLTAGE (11 - 14 V)
150 (R) - Sensor ground (Refrigerant pressure sensor/Battery current sensor/EVAP control system pressure sensor) - - -
151 (P) - CAN communication line - - -
156 (L) 175 (B) Power supply for ECM (Backup) Input [Ignition switch: OFF] BATTERY VOLTAGE (11 - 14 V)
158 (W/B) 175 (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)
161 (R/W) - ENG communication line - - -
163 (L/G) 175 (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)
165 (GR/R) -
NOTE: Not used
 - - -
166 (W) - ENG communication line - - -
169 (G/B) 175 (B) Engine speed signal output Input Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 0 - 7.0 V(1)
G08257051Courtesy of NISSAN NORTH AMERICA, INC.
Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 0 - 7.0 V(1)
G08257052Courtesy of NISSAN NORTH AMERICA, INC.
171 (W) 175 (B) Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
172 (W) 175 (B) Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
173 (O) 175 (B) Throttle control motor power supply Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
174 (B) - ECM ground - - -
175 (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) Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to "HOW TO HANDLE BATTERY ".
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