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Home >> Nissan-Datsun >> 2012 >> Cube Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Component Testing (CALIFORNIA) >> Ecu Diagnosis Information >> ECM >> Reference Value >> Physical Values
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Physical Values

NOTE:
  • ECM is located in the engine room left side near battery.
  • Specification data are reference values and are measured between each terminal and ground.
  • Pulse signal is measured by CONSULT.
Terminal No. (Wire color) Description Condition Value (Approx.)
+ - Signal name Input/Output
1 (P) 108 (B) Throttle control motor (Open) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (CVT), 1st (M/T)
  • Accelerator pedal: Fully depressed
 3.2 V(1)
G08129025Courtesy of NISSAN NORTH AMERICA, INC.
2 (SB) 108 (B) Throttle control motor relay power supply Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
3 (V) 108 (B) Tumble control valve motor power supply Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
4 (L) 108 (B) Throttle control motor (Close) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (CVT), 1st (M/T)
  • Accelerator pedal: Fully released
 1.8 V(1)
G08129026Courtesy of NISSAN NORTH AMERICA, INC.
5 (G) 59 (O) 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
    • 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)
G08129027Courtesy of NISSAN NORTH AMERICA, INC.
[Ignition switch: ON]
  • Engine stopped

[Engine is running]
  • Engine speed: Above 3, 600 rpm
 BATTERY VOLTAGE (11 - 14 V)
6 (W) 108 (B) Tumble control valve motor (Close) Output [Ignition switch: OFF → ON]
  • For a few seconds after turning ignition switch ON
 0 V
↓
BATTERY VOLTAGE (11 - 14 V)
↓
0 V
[Ignition switch: ON → OFf]
  • For a few seconds after turning ignition switch OFF
 0 V
↓
1.5 - 2.0 V
↓
0 V
7 (R) 108 (B) Tumble control valve motor (Open) Output [Ignition switch: OFF → ON]
  • For a few seconds after turning ignition switch ON
 0 V
↓
0.5 V
↓
0 V
[Ignition switch: ON → OFf]
  • For a few seconds after turning ignition switch OFF
 0 V
↓
BATTERY VOLTAGE (11 - 14 V)
↓
0 V
8 (G) 53 (LG) A/F sensor 1 heater Output [Engine is running]
  • Warm-up condition
  • Engine speed: Idle speed (More than 140 seconds after starting engine)
 2.9 - 8.8 V(1)
G08129028Courtesy of NISSAN NORTH AMERICA, INC.
9 (P) 108 (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)
G08129029Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Engine speed: About 2, 000 rpm (More than 100 seconds after starting engine.)
 10 V(1)
G08129030Courtesy of NISSAN NORTH AMERICA, INC.
11 (B) - ECM ground - - -
12 (GR) - Sensor ground (Engine oil temperature sensor) - - -
14 (L) 108 (B) PNP signal Input [Ignition switch: ON]
  • Selector lever: P or N (CVT), Neutral (M/T)
 BATTERY VOLTAGE (11 - 14 V)
[Ignition switch: ON]
  • Selector lever: Except above
 0 V
15 (Y) 108 (B) Throttle control motor relay Output [Ignition switch: OFF] BATTERY VOLTAGE (11 - 14 V)
[Ignition switch: ON] 0 - 1.0 V
17 (R) 108 (B) Ignition signal No. 1 Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 0 - 0.3 V(1)
G08129031Courtesy of NISSAN NORTH AMERICA, INC.
18 (LG) Ignition signal No. 2
21 (G) Ignition signal No. 4 [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 rpm
 0.2 - 0.5 V(1)
G08129032Courtesy of NISSAN NORTH AMERICA, INC.
22 (SB) Ignition signal No. 3
23 (GR) 108 (B) Fuel pump relay Output [Ignition switch: ON]
  • For 1 second after turning ignition switch ON

[Engine is running]		 0 - 1.0 V
25 (V) 108 (B) Fuel injector No. 4 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)
G08129033Courtesy of NISSAN NORTH AMERICA, INC.
29 (Y) Fuel injector No. 3
30 (O) Fuel injector No. 2 [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE (11 - 14 V)(1)
G08129034Courtesy of NISSAN NORTH AMERICA, INC.
31 (L) Fuel injector No. 1
27 (R) 12 (GR) Engine oil temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine oil temperature.
28 (SB) 108 (B) EVAP canister vent control valve Output [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
32 (P) 108 (B) ECM relay (Self shut-off) Output [Engine is running]
[Ignition switch: OFF]
  • A few seconds after turning ignition switch OFF
 0 - 1.0 V
[Ignition switch: OFF]
  • More than a few seconds after turning ignition switch OFF
 BATTERY VOLTAGE (11 - 14 V)
33 (LG) 36 (Y) Throttle position sensor 1 Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (CVT), 1st (M/T)
  • Accelerator pedal: Fully released
 More than 0.36 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (CVT), 1st (M/T)
  • Accelerator pedal: Fully depressed
 Less than 4.75 V
34 (R) 36 (Y) Throttle position sensor 2 Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (CVT), 1st (M/T)
  • Accelerator pedal: Fully released
 Less than 4.75 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (CVT), 1st (M/T)
  • Accelerator pedal: Fully depressed
 More than 0.36 V
35 (V) 47 (LG) Tumble control valve position sensor Input [Ignition switch: OFF → ON]
  • For a few seconds after turning ignition switch ON
 0 V
↓
0.7 V
[Ignition switch: ON → OFf]
  • For a few seconds after turning ignition switch OFF
 0.7 V
↓
3.5 V
↓
0 V
36 (Y) - Sensor ground (Throttle position sensor) - - -
37 (W) 40 (-) Knock sensor Input [Engine is running]
  • Idle speed
 2.5 V
38 (BR) 44 (GR) Engine coolant temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine coolant temperature.
40 (-) - Sensor ground (Knock sensor) - - -
41 (GR) 48 (BR) 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
42 (V) 51 (Y) EVAP control system pressure sensor Input [Ignition switch: ON] 1.8 - 4.8 V
43 (P) 108 (B) Fuel tank temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with fuel tank temperature.
44 (GR) - Sensor ground (Engine coolant temperature sensor) - - -
45 (G) 52 (R) Mass air flow sensor Input [Engine is running]
  • Warm-up condition
  • Idle speed
 0.7 - 1.1 V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 rpm
 1.3 - 1.7 V
46 (L) 55 (P) Intake air temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with intake air temperature.
47 (LG) - Sensor ground (Tumble control valve position sensor) - - -
48 (BR) - Sensor ground (Refrigerant pressure sensor) - - -
49 (V) 53 (LG) A/F sensor 1 Input [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 Approximately 1.8 V
Output voltage varies with air fuel ratio.
50 (W) 59 (O) Heated oxygen sensor 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
51 (Y) - Sensor ground (EVAP control system pressure sensor) - - -
52 (R) - Sensor ground (Mass air flow sensor) - - -
53 (LG) - Sensor ground (A/F sensor 1) - - -
55 (P) - Sensor ground (Intake air temperature sensor) - - -
57 (GR) 64 (SB) Battery current sensor Input [Engine is running]
  • Battery: Fully charged(2)
  • Idle speed
 2.6 - 3.5 V
59 (O) - Sensor ground (Heated oxygen sensor 2) - - -
61 (W) 62 (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 V(1)
G08129035Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Engine speed: 2, 000 rpm
 4.0 V(1)
G08129036Courtesy of NISSAN NORTH AMERICA, INC.
62 (B) - Sensor ground [Crankshaft position sensor (POS)] - - -
63 (L) - Sensor ground [Camshaft position sensor (PHASE)] - - -
64 (SB) - Sensor ground (Battery current sensor) - - -
65 (Y) 63 (L) Camshaft position sensor (PHASE) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
 0 - 5.0(1)
G08129037Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running]
  • Engine speed is 2, 000 rpm
 0 - 5.0(1)
G08129038Courtesy of NISSAN NORTH AMERICA, INC.
66 (L) 108 (B) Power supply for ECM (Back-up) Input [Ignition switch: OFF] BATTERY VOLTAGE (11 - 14 V)
69 (SB) 47 (LG) Sensor power supply (Tumble control valve position sensor) - [Ignition switch: ON] 5 V
71 (Y) 64 (SB) Sensor power supply [Battery current sensor] - [Ignition switch: ON] 5 V
72 (O) 36 (Y) Sensor power supply (Throttle position sensor) - [Ignition switch: ON] 5 V
73 (P) 108 (B) Intake valve timing control solenoid valve Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE (11 - 14 V)
[Engine is running]
  • Warm-up condition
  • When revving engine up to 2, 000rpm Quickly
 7 - 10 V(1)
G08129039Courtesy of NISSAN NORTH AMERICA, INC.
74 (W) 108 (B) Sensor power supply (Refrigerant pressure sensor) Input [Ignition switch: ON] 5 V
75 (R) 62 (B) Sensor power supply [Crankshaft position sensor (POS)] - [Ignition switch: ON] 5 V
76 (LG) 51 (Y) Sensor power supply [EVAP control system pressure sensor] - [Ignition switch: ON] 5 V
78 (G) 63 (L) Sensor power supply [Camshaft position sensor (PHASE)] - [Ignition switch: ON] 5 V
83 (P) 108 (B) CAN communication line Input/Output - -
84 (L) 108 (B) CAN communication line Input/Output - -
88 (LG) 108 (B) Data link connector Input/Output - -
93 (L) 108 (B) Ignition switch Input [Ignition switch: OFF] 0 V
[Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
94 (SB) 95 (BR)(3) (B)(4) ASCD steering switch 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
95 (BR)(3) (B)(4) - Sensor ground (ASCD steering switch) - - -
99 (W) 108 (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)
100 (SB) 108 (B) ASCD brake switch Input [Ignition switch: ON]
  • Brake pedal: Slightly depressed (CVT)
  • Brake pedal and clutch pedal: Slightly depressed (M/T)
 0 V
[Ignition switch: ON]
  • Brake pedal: Fully released (CVT)
  • Brake pedal and/or clutch pedal: Fully released (M/T)
 BATTERY VOLTAGE (11 - 14 V)
102 (O) 108 (B) Sensor power supply (Accelerator pedal position sensor 2) - [Ignition switch: ON] 5 V
103 (G) 104 (R) Accelerator pedal position sensor 2 Input [Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully released
 0.3 - 0.6 V
[Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully depressed
 1.95 - 2.4 V
104 (R) - Sensor ground (Accelerator pedal position sensor 2) - - -
105 (G) 108 (B) Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
106 (V) 108 (B) Sensor power supply (Accelerator pedal position sensor 1) - [Ignition switch: ON] 5 V
107 (B) - ECM ground - - -
108 (B) - ECM ground - - -
109 (B) - ECM ground - - -
110 (BR) 111 (Y) Accelerator pedal position sensor 1 Input [Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully released
 0.6 - 0.9 V
[Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully depressed
 3.9 - 4.7 V
111 (Y) - Sensor ground (Accelerator pedal position sensor 1) - - -
112 (B) - ECM ground - - -
(1) Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
(2) Before measuring the terminal voltage, confirm that the battery is fully changed. Refer to "HOW TO HANDLE BATTERY ".
(3) CVT models
(4) M/T models
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