2013 Infiniti M56 BaseFACTORY OEM SERVICE PROCEDURE

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 (Y)
2 (L)		 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)
G08897038
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897039
3 (Y)
4 (L)		 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)
G08897040
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897041
5 (B) - ECM ground - - -
6 (BR)
7 (B/W)		 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)
G08897042
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897043
8 (BR)
9 (B/W)		 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)
G08897044
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897045
10 (GR) - ECM ground - - -
11 (LG) 175 (B) PNP signal 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 (O)
13 (L)
14 (G)
15 (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)
G08897046
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 0.1 - 0.4 V(1)
G08897047
17 (LG)
18 (V)
19 (L)
20 (G)		 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)
G08897048
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 0.1 - 0.4 V(1)
G08897049
21 (R) 25 (P) Intake air temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with intake air temperature.
22 (GR)(2)
(B)(3)		 25 (P) Mass air flow sensor (bank 1) Input [Engine is running]
  • Warm-up condition
  • Idle speed
 0.95 - 1.35 V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 rpm
 1.3 - 1.7 V
23 (B) 45 (V) Low fuel pressure sensor Input [Engine is running]
  • Warm-up condition
  • Idle speed
 2.4 - 3.6 V
G08897050
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 2.4 - 3.6 V
G08897051
24 (B)(2)
(GR)(3)		 30 (O) Mass air flow sensor (bank 2) Input [Engine is running]
  • Warm-up condition
  • Idle speed
 0.95 - 1.35 V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 rpm
 1.3 - 1.7 V
25 (P) - Sensor ground
[Mass air flow sensor (bank 1)/Intake air temperature sensor]		 - - -
27 (G) 45 (V) Sensor power supply
(Power steering pressure sensor/Low fuel pressure sensor)		 - [Ignition switch: ON] 5 V
28 (W) 40 (B) 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
 2.5 V(4)
30 (O) - Sensor ground
[Mass air flow sensor (bank 2)]		 - - -
31 (G) 40 (B) 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 (Y) 40 (B) Engine coolant temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine coolant temperature.
33 (GR) 35 (-) Knock sensor (bank 2) Input [Engine is running]
  • Idle speed
 2.5 V(4)
35 (-) - Sensor ground (Knock sensor) - - -
39 (LG) 45 (V) 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 (B) - Sensor ground
(Fuel rail pressure sensor/Engine oil pressure sensor/Engine coolant temperature sensor/Engine oil temperature sensor)		 - - -
41 (Y) 40 (B) Engine oil pressure sensor Input [Engine is running]
  • Warm-up condition
  • Idle speed
 1.3 V(1)
G08897052
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 2.7 V(1)
G08897053
42 (L)(2)
(B)(3)		 40 (B) Engine oil temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine oil temperature.
45 (V) - Sensor ground
(Power steering pressure sensor/Low fuel pressure sensor)		 - - -
46 (LG) 175 (B) Fuel injector driver power supply Input [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
47 (BR) 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)
G08897054
[Ignition switch: ON]
  • Engine: Stopped

[Engine is running]
  • Engine speed: Above 3, 600 rpm
 BATTERY VOLTAGE
(11 - 14 V)
48 (Y) 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)
G08897055
49 (GR) 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)
G08897056
50 (V) 175 (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
  • Around 2, 500 rpm while the engine speed is rising
 7 - 12 V(1)
G08897057
51 (W) 175 (B) Fuel injector driver power supply Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE
(11 - 14 V)
52 (G) 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)
G08897058
[Ignition switch: ON]
  • Engine: Stopped

[Engine is running]
  • Engine speed: Above 3, 600 rpm
 BATTERY VOLTAGE
(11 - 14 V)
53 (P) 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)
G08897059
54 (SB) 175 (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, 000rpm
 7 - 12 V(1)
G08897060
55 (R) 175 (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
  • Around 2, 500 rpm while the engine speed is rising
 7 - 12 V(1)
G08897061
57 (L) 175 (B) Throttle control motor (bank 1) (Open) Output [Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
 0 - 14 V(1)
G08897062
[Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: Fully released
 0 - 14 V(1)
G08897063
58 (G) 175 (B) Throttle control motor (bank 2) (Close) Output [Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: In the middle of releasing operation
 0 - 14 V(1)
G08897064
60 (B/W) - Shield - - -
62 (R) 175 (B) Throttle control motor (bank 2) (Open) Output [Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D
  • Accelerator pedal: Fully depressed
 0 - 14 V(1)
G08897065
[Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: Fully released
 0 - 14 V(1)
G08897066
63 (P) 175 (B) Throttle control motor (bank 1) (Close) Output [Ignition switch: ON]
  • Engine: Stopped
  • Selector lever: D position
  • Accelerator pedal: In the middle of releasing operation
 0 - 14 V(1)
G08897067
64 (GR) 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)(1)
G08897068
[Engine is running]
  • Engine speed: About 2, 000 rpm

    (More than 100 seconds after starting engine)

 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897069
67 (R) 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 (L) - Sensor ground [Camshaft position sensor (bank 1)/Exhaust valve timing control position sensor (bank 1)] - - -
69 (O/L) - Sensor ground [Throttle position sensor (bank 2)] - - -
70 (G) - Sensor ground (Manifold absolute pressure sensor) - - -
71 (O) 69 (O/L) Throttle position sensor 1 (bank 2) 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
73 (B) 99 (R) 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)
G08897070
[Engine is running]
  • Engine speed: 2, 000 rpm
 3.0 - 5.0 V(1)
G08897071
74 (L/W) 175 (B) A/F sensor 1 (bank 2) Input [Ignition switch: ON] 2.5 V
75 (R) 68 (L) 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)
G08897072
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 4.0 - 5.0 V(1)
G08897073
76 (B) 86 (L) Sensor power supply (Crankshaft position sensor) - [Ignition switch: ON] 5 V
77 (B) 68 (L) 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 (G) Throttle position sensor 2 (bank 1) 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) 175 (B) Sensor power supply [A/F sensor 1 (bank 2)] - [Ignition switch: ON] 3.0 V
81 (W) 97 (G) Sensor power supply [Throttle position sensor (bank 1)] - [Ignition switch: ON] 5 V
82 (W) 69 (O/L) Sensor power supply [Throttle position sensor (bank 2)] - [Ignition switch: ON] 5 V
83 (L) 175 (B) Sensor power supply [Camshaft position sensor (bank 2)] - [Ignition switch: ON] 5 V
85 (W) 175 (B) Sensor power supply (Manifold absolute pressure sensor) - [Ignition switch: ON] 5 V
86 (L) 98 (R) 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)
G08897074
[Engine is running]
  • Engine speed: 2, 000 rpm
 4.0 - 5.0 V(1)
G08897075
87 (BR) 100 (P) 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 (L/W) 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.
89 (W/L) 69 (O/L) Throttle position sensor 2 (bank 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
90 (L/R) 175 (B) Sensor power supply [A/F sensor 1 (bank 1)] - [Ignition switch: ON] 3.0 V
91 (R) 175 (B) Throttle position sensor 1 (bank 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
93 (B) 99 (R) 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
 3.0 - 5.0 V(1)
G08897076
[Engine is running]
  • Engine speed: 2, 000 rpm
 3.0 - 5.0 V(1)
G08897077
94 (L) 175 (B) A/F sensor 1 (bank 1) Input [Ignition switch: ON] 2.0 V
95 (R) 68 (L) 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)
G08897078
[Engine is running]
  • Engine speed: 2, 000 rpm
 3.0 - 5.0 V(1)
G08897079
96 (Y) 100 (P) 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 (G) - Sensor ground [Throttle position sensor (bank 1)] - - -
98 (R) - Sensor ground (Crankshaft position sensor) - - -
99 (R) - Sensor ground [Camshaft position sensor (bank 2)/Exhaust valve timing control position sensor (bank 2)] - - -
100 (P) - Sensor ground (Heated oxygen sensor 2) - - -
101 (Y)
102 (L)		 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)
G08897080
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897081
103 (B/W)
104 (BR)		 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)
G08897082
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897083
105 (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)
G08897084
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897085
106 (L)
107 (Y)		 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)
G08897086
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897087
108 (BR)
109 (B/W)		 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)
G08897088
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897089
110 (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)
G08897090
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 BATTERY VOLTAGE
(11 - 14 V)(1)
G08897091
111 (W) 175 (B) Fuel injector driver power supply Input [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
112 (W) 175 (B) Fuel injector driver power supply Input [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
114 (B) - ECM ground
(Fuel injector)		 - - -
115 (B) - ECM ground
(Fuel injector)		 - - -
120 (G) 175 (B) EVAP canister vent control valve Output [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
122 (V) 175 (B) VVEL actuator motor relay abort signal (VVEL control module) Input [Ignition switch: ON] 0 V
123 (BG) 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 (P) 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(1)
G08897092
126 (Y) 129 (BR)(2)
(B)(3)		 Accelerator pedal position sensor 2 Input [Ignition switch: ON]
  • Engine: Stopped
  • Accelerator pedal: Fully released
 0.22 - 0.5 V
[Ignition switch: ON]
  • Engine: Stopped
  • Accelerator pedal: Fully depressed
 2.1 - 2.5 V
128(2) (SB) 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 DRIVE ASSISTANCE switch: Pressed
 1.0 V
128(3) (SB) 130 (Y) 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
129 (BR)(2)
(B)(3)		 - Sensor ground (Accelerator pedal position sensor 2) - - -
130 (Y) - Sensor ground (ASCD steering switch) - - -
131 (L) 129 (BR)(2)
(B)(3)		 Sensor power supply (Accelerator pedal position sensor 2) - [Ignition switch: ON] 5 V
133 (BG) 150 (V) Sensor power supply [Refrigerant pressure sensor/Battery current sensor/EVAP control system pressure sensor] - [Ignition switch: ON] 5 V
134 (P) 175 (B) Fuel temperature sensor Input [Engine is running]
  • Warm-up condition
 2.8 V
136 (R) 140 (W) Accelerator pedal position sensor 1 Input [Ignition switch: ON]
  • Engine: Stopped
  • Accelerator pedal: Fully released
 0.45 - 1.0 V
[Ignition switch: ON]
  • Engine: Stopped
  • Accelerator pedal: Fully depressed
 4.4 - 4.8 V
137 (G) 140 (W) Sensor power supply (Accelerator pedal position sensor 1) - [Ignition switch: ON] 5 V
138 (P) 175 (B) Battery current sensor Input [Engine is running]
  • Battery: Fully charged(5)
  • Idle speed
 2.6 - 3.5 V
139 (BG) 175 (B) Battery temperature sensor Input [Engine is running]
  • Battery temperature: 25°C
  • Idle speed
 3.3 V
140 (W) - Sensor ground (Accelerator pedal position sensor 1) - - -
141 (G) 175 (B) Ignition switch Input [Ignition switch: OFF] 0 V
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
142 (GR) 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 (P) 175 (B) EVAP control system pressure sensor Input [Engine is running]
  • Warm-up condition
 4 V
144 (LG) 150 (V) 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 (BR) 175 (B) ASCD/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 (V) - Sensor ground [Refrigerant pressure sensor/Battery current sensor/EVAP control system pressure sensor] - - -
151 (P) - CAN communication line - - -
156 (W) 175 (B) Power supply for ECM (Backup) Input [Ignition switch: OFF] BATTERY VOLTAGE
(11 - 14 V)
158 (P) 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 (Y) - ENG communication line - - -
163 (W) 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)
166 (BG) - ENG communication line - - -
169 (V) 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)
G08897093
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 0 - 7.0 V(1)
G08897094
171 (SB) 175 (B) Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
172 (SB) 175 (B) Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
173 (R) 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) With ICC.
(3) Without ICC.
(4) This may vary depending on internal resistance of the tester.
(5) Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to "HOW TO HANDLE BATTERY ".
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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