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Home >> Infiniti >> 2014 >> Q50 Hybrid Sport, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction) (Hybrid) >> Ecu Diagnosis Information >> ECM >> Reference Value >> Physical Values

Physical Values

NOTE:
  • Specification data are reference values and are measured between each terminal and ground.
  • Pulse signal is measured by CONSULT.
  • If necessary, perform "INSPECTION MODE 5 ". Refer to "DESCRIPTION ".
Terminal No. (Wire color) Description Condition Value (Approx.)
+ - Signal name Input/Output
1 (W) 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)
G09166198
2 (G) 128 (B) Throttle control motor (Open) (bank 1) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
0 - 14 V(1)
G09166199
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully released
0 - 14 V(1)
G09166200
3 (R) 128 (B) Throttle control motor power supply (bank 1) Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
4 (GR) 128 (B) Throttle control motor (Close) (bank 1) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: In the middle of releasing operation
0 - 14 V(1)
G09166201
5 (LG) 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)
G09166202
6 (V) 128 (B) Exhaust 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)
G09166203
7 (BG) 128 (B) Exhaust 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)
G09166204
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)
G09166205
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)
G09166206
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, 000 RPM after the following conditions are met
    • Engine: after warming up
    • Keeping the engine speed at 3, 000 RPM for 1 minute and at idle for 1 minute under no load
10 V(1)
G09166207
[Ignition switch: ON]
  • Engine stopped

[Engine is running]
  • Engine speed: Above 3, 000 RPM
BATTERY VOLTAGE (11 - 14 V)
18 (LG) 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)
G09166208
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)
G09166209
[Engine is running]
  • Engine speed: About 2, 000 RPM (More than 100 seconds after starting engine)
BATTERY VOLTAGE (11 - 14 V)(1)
G09166210
22 (BG) 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 (W) 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
29 (Y) 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)
G09166211
30 (BR) 40 (LG) Throttle position sensor 1 (bank 1) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully released
More than 0.36 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
Less than 4.75 V
31 (B) 48 (G) Throttle position sensor 1 (bank 2) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully released
More than 0.36 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
Less than 4.75 V
33 (LG) 128 (B) Heated oxygen sensor 2 heater (bank 2) Output [Engine is running]
  • Engine speed: Below 3, 000 RPM after the following conditions are met
    • Engine: after warming up
    • Keeping the engine speed at 3, 000 RPM for 1 minute and at idle for 1 minute under no load
10 V(1)
G09166212
[Ignition switch: ON]
  • Engine stopped

[Engine is running]
  • Engine speed: Above 3, 000 RPM
BATTERY VOLTAGE (11 - 14 V)
34 (P) 40 (LG) Throttle position sensor 2 (bank 1) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully released
Less than 4.75 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
More than 0.36 V
35 (W) 48 (G) Throttle position sensor 2 (bank 2) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully released
Less than 4.75 V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
More than 0.36 V
36 (BR) - Sensor ground (Manifold absolute pressure sensor) - - -
37 (L) 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)
G09166213
[Engine is running]
  • Engine speed: 2, 000 RPM
4.0 - 5.0 V(1)
G09166214
38 (B) 96 (BR) 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
40 (LG) - Sensor ground [Throttle position sensor (bank 1)] - - -
43 (R) 48 (G) Sensor power supply [Throttle position sensor (bank 2)] - [Ignition switch: ON] 5 V
44 (SB) 40 (LG) Sensor power supply [Throttle position sensor (bank 1)] - [Ignition switch: ON] 5 V
46 (GR) 128 (B) Sensor power supply [Crankshaft position sensor (POS)] - [Ignition switch: ON] 5 V
47 (BR) - Sensor ground [Crankshaft position sensor (POS)] - - -
48 (G) - Sensor ground [Throttle position sensor (bank 2)] - - -
49 (LG) 128 (B) Throttle control motor (Close) (bank 2) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: In the middle of releasing operation
0 - 14 V(1)
G09166215
50 (V) 128 (B) Throttle control motor (Open) (bank 2) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
0 - 14 V(1)
G09166216
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D
  • Accelerator pedal: Fully released
0 - 14 V(1)
G09166217
52 (Y) 128 (B) Throttle control motor power supply (bank 2) Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
53 (SB) 128 (B) Ignition switch Input [Ignition switch: OFF] 0 V
[Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
54 (G) - HEV system CAN-L Input/output - -
55 (L) - HEV system CAN-H Input/output - -
57 (LG) 128 (B) A/F sensor 1 (bank 1) Input [Ignition switch: ON] 2.2 V
58 (B) 96 (BR) Exhaust valve timing control position sensor (bank 1) 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)
G09166218
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
4.0 - 5.0 V(1)
G09166219
59 (L) 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)
G09166220
[Engine is running]
  • Engine speed: 2, 000 RPM
3.0 - 5.0 V(1)
G09166221
60 (Y) 128 (B) Sensor power supply [Camshaft position sensor (PHASE) (bank 1), Exhaust valve timing control position sensor (bank 1)] - [Ignition switch: ON] 5 V
61 (V) 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.
62 (R) 92 (B) Exhaust valve timing control position sensor (bank 2) 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)
G09166222
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
4.0 - 5.0 V(1)
G09166223
63 (BR) 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)
G09166224
[Engine is running]
  • Engine speed: 2, 000 RPM
3.0 - 5.0 V(1)
G09166225
64 (W) 128 (B) Sensor power supply [Battery current sensor, Camshaft position sensor (PHASE) (bank 2), Exhaust valve timing control position sensor (bank 2)] - [Ignition switch: ON] 5 V
65 (BR) 128 (B) A/F sensor 1 (bank 2) Input [Ignition switch: ON] 2.2 V
66 (Y) 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 (V) 128 (B) Intake air temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with intake air temperature.
68 (G) - Sensor ground [Mass air flow sensor (bank 1), Intake air temperature sensor] - - -
69 (W) 128 (B) Knock sensor (bank 2) Input [Engine is running]
  • Idle speed
2.5 V(1)
70 (R) 96 (BR) Engine oil pressure sensor Input [Engine is running]
  • Warm-up condition
  • Idle speed
1.3 V(1)
G09166226
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
2.7 V(1)
G09166227
71 (SB) 128 (B) Engine coolant temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine coolant temperature.
72 (GR) - Sensor ground (Knock sensor) - - -
73 (W) 128 (B) Knock sensor (bank 1) Input [Engine is running]
  • Idle speed
2.5 V(2)
74 (P) 128 (B) Sensor power supply (Mass air flow sensor) - [Ignition switch: ON] 5 V
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 at 3, 000 RPM for 1 minute and at idle for 1 minute under no load
0 - 1.0 V
77 (Y) 68 (G) Mass air flow sensor (bank 1) Input [Engine is running]
  • Warm-up condition
  • Idle speed
0.8 - 1.1 V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 RPM
1.4 - 1.7 V
78 (BG) 84 (G) Engine oil temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine oil temperature.
79 (Y) 94 (V) Mass air flow sensor (bank 2) Input [Engine is running]
  • Warm-up condition
  • Idle speed
0.8 - 1.1 V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 RPM
1.4 - 1.7 V
80 (R) 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 at 3, 000 RPM for 1 minute and at idle for 1 minute under no load
0 - 1.0 V
81 (W) 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)
G09166228
82 (V) Fuel injector No. 6
85 (BR) Fuel injector No. 2
86 (R) Fuel injector No. 5 [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 RPM
BATTERY VOLTAGE (11 - 14 V)(1)
G09166229
89 (GR) Fuel injector No. 1
90 (P) Fuel injector No. 4
84 (G) - Sensor ground (Heated oxygen sensor 2, Engine coolant temperature sensor, Engine oil temperature sensor) - - -
88 (SB) - Sensor ground [Camshaft position sensor (PHASE)] - - -
91 (Y) 95 (G) Battery current sensor Input [Engine is running]
  • 12V battery: Fully charged(2)
  • Idle speed
2.6 - 3.5 V
92 (B) - Sensor ground [Exhaust valve timing control position sensor (bank 2)] - - -
93 (BG) 128 (B) Power supply for ECM (Back-up) Input [Ignition switch: OFF] BATTERY VOLTAGE (11 - 14 V)
94 (V) - Sensor ground [Mass air flow sensor (bank 2)] - - -
95 (G) - Sensor ground (Battery current sensor) - - -
96 (BR) - Sensor ground [Exhaust valve timing control position sensor (bank 1), Engine oil pressure sensor] - - -
102 (V) 112 (BR) EVAP control system pressure sensor(3) Input [Ignition switch: ON] 1.8 - 4.8 V
102 (V) 112 (BR) Atmospheric pressure sensor(4) Input [Ignition switch: ON] 0 - 4.8 V
Output voltage varies with atmospheric pressure.
105 (LG) 112 (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
106 (SB) 128 (B) Fuel tank temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with fuel tank temperature.
107 (W) 112 (BR) Sensor power supply (EVAP control system pressure sensor(3), Atmospheric pressure sensor(4), Refrigerant pressure sensor) - [Ignition switch: ON] 5 V
110 (BG) 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)
G09166230
[Engine is running]
  • Engine speed is 2, 000 RPM
1 V(1)
G09166231
111 (Y) 128 (B) Sensor power supply (Manifold absolute pressure sensor, Engine oil pressure sensor) - [Ignition switch: ON] 5 V
112 (BR) - Sensor ground (EVAP control system pressure sensor(3), Atmospheric pressure sensor(4), Refrigerant pressure sensor) - - -
113 (P) - CAN communication line Input/Output - -
114 (L) - CAN communication line Input/Output - -
117 (W) 128 (B) Data link connector Input/Output - -
121 (Y) 128 (B) EVAP canister vent control valve(3) Output [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
122 (SB) 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 (L) 128 (B) Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14 V)
126 (BG) 128 (B) Brake pedal position switch 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) For USA and CANADA
(4) For MEXICO