ECM Inspection Table

WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Specification data are reference values and are measured between each terminal and ground.

Pulse signal is measured by CONSULT-II.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.

ECM INSPECTION CHART

TERMINAL NO.	WIRE COLOR	ITEM	CONDITION	DATA (DC Voltage)
1	B	ECM ground	[Engine is running] Idle speed	Body ground
2	R/G	A/F sensor 1 heater (Bank 1)	[Engine is running] Warm-up condition Idle speed	Courtesy of NISSAN NORTH AMERICA, INC.
3	R	Throttle control motor relay power supply	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
4	O/L	Throttle control motor (Close)	[Ignition switch: ON] Engine stopped Shift lever: D Accelerator pedal: Fully released	Courtesy of NISSAN NORTH AMERICA, INC.
5	W/L	Throttle control motor (Open)	[Ignition switch: ON] Engine stopped Shift lever: D Accelerator pedal: Fully depressed	Courtesy of NISSAN NORTH AMERICA, INC.
6	GR	Heated oxygen sensor 2 heater (Bank 2)	[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.	0 - 1.0V
6	GR	Heated oxygen sensor 2 heater (Bank 2)	[Ignition switch: ON] Engine stopped [Engine is running] Engine speed: Above 3, 600 rpm	BATTERY VOLTAGE (11 - 14V)
8	W	Electronic controlled engine mount-1	[Engine is running] Engine speed: Above 950 rpm	BATTERY VOLTAGE (11 - 14V)
			[Engine is running] For 2 seconds after engine speed: 950 rpm or less	0 - 1.0V
			[Engine is running] 2 seconds after engine speed: 950 rpm or less	2.0 - 3.0V
9	W/R	Electronic controlled engine mount-2	[Engine is running] Engine speed: Below 950 rpm	BATTERY VOLTAGE (11 - 14V)
			[Engine is running] For 2 seconds after engine speed: 950 rpm or more	0 - 1.0V
			[Engine is running] 2 seconds after engine speed: 950 rpm or more	2.0 - 3.0V
10	Y/L	Intake valve timing control solenoid valve (Bank 2)	[Engine is running] Warm-up condition Idle speed	BATTERY VOLTAGE (11 - 14V)
10	Y/L	Intake valve timing control solenoid valve (Bank 2)	[Engine is running] Warm-up condition Engine speed: 2, 000 rpm	Courtesy of NISSAN NORTH AMERICA, INC.
11	R/L	Intake valve timing control solenoid valve (Bank 1)	[Engine is running] Warm-up condition Idle speed	BATTERY VOLTAGE (11 - 14V)
11	R/L	Intake valve timing control solenoid valve (Bank 1)	[Engine is running] Warm-up condition Engine speed: 2, 000 rpm	Courtesy of NISSAN NORTH AMERICA, INC.
12	W	Power steering pressure sensor	[Engine is running] Steering wheel: Being turned	0.5 - 4.5V
12	W	Power steering pressure sensor	[Engine is running] Steering wheel: Not being turned	0.4 - 0.8V
13	W	Crankshaft position sensor (POS)	[Engine is running] Warm-up condition Idle speed NOTE: The pulse cycle changes depending on rpm at idle	Courtesy of NISSAN NORTH AMERICA, INC.
13	W	Crankshaft position sensor (POS)	[Engine is running] Engine speed: 2, 000 rpm	Courtesy of NISSAN NORTH AMERICA, INC.
14	W	Camshaft position sensor (PHASE) (Bank 2)	[Engine is running] Warm-up condition Idle speed NOTE: The pulse cycle changes depending on rpm at idle	Courtesy of NISSAN NORTH AMERICA, INC.
14	W	Camshaft position sensor (PHASE) (Bank 2)	[Engine is running] Engine speed: 2, 000 rpm	Courtesy of NISSAN NORTH AMERICA, INC.
15	W	Knock sensor	[Engine is running] Idle speed	Approximately 2.5V
16	BR	A/F sensor 1 (Bank 1)	[Engine is running] Warm-up condition Idle speed	Approximately 3.1V
35	O/B			Approximately 2.6V
56	V			Approximately 2.3V
75	P			Approximately 2.3V
17 18 19 20	P/B G L L/W	EGR volume control valve	[Engine is running] Idle speed	0.1 - 14V
21 22 23	L/W R/Y R/B	Fuel injector No. 5 Fuel injector No. 3 Fuel injector No. 1	[Engine is running] Warm-up condition Idle speed NOTE: The pulse cycle changes depending on rpm at idle	BATTERY VOLTAGE Courtesy of NISSAN NORTH AMERICA, INC.
21 22 23	L/W R/Y R/B	Fuel injector No. 5 Fuel injector No. 3 Fuel injector No. 1	[Engine is running] Warm-up condition Engine speed: 2, 000 rpm	BATTERY VOLTAGE Courtesy of NISSAN NORTH AMERICA, INC.
24	W	A/F sensor 1 heater (Bank 2)	[Engine is running] Warm-up condition Idle speed	Courtesy of NISSAN NORTH AMERICA, INC.
25	P	Heated oxygen sensor 2 heater (Bank 1)	[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.	0 - 1.0V
25	P	Heated oxygen sensor 2 heater (Bank 1)	[Ignition switch: ON] Engine stopped [Engine is running] Engine speed: Above 3, 600 rpm	BATTERY VOLTAGE (11 - 14V)
29	Y/G	VIAS control solenoid valve	[Engine is running] Idle speed	BATTERY VOLTAGE (11 - 14V)
29	Y/G	VIAS control solenoid valve	[Engine is running] Engine speed: Between 1, 800 and 3, 600 rpm	0 - 1.0V
32	BR	EVAP control system pressure sensor	[Ignition switch: ON]	Approximately 1.8 - 4.8V
33	Y	Camshaft position sensor (PHASE) (Bank 1)	[Engine is running] Warm-up condition Idle speed NOTE: The pulse cycle changes depending on rpm at idle	Courtesy of NISSAN NORTH AMERICA, INC.
33	Y	Camshaft position sensor (PHASE) (Bank 1)	[Engine is running] Engine speed: 2, 000 rpm	Courtesy of NISSAN NORTH AMERICA, INC.
34	Y/G	Intake air temperature sensor	[Engine is running]	Approximately 0 - 4.8V Output voltage varies with intake air temperature.
40 41 42	V/W R/L R/W	Fuel injector No. 6 Fuel injector No. 4 Fuel injector No. 2	[Engine is running] Warm-up condition Idle speed NOTE: The pulse cycle changes depending on rpm at idle	BATTERY VOLTAGE Courtesy of NISSAN NORTH AMERICA, INC.
40 41 42	V/W R/L R/W	Fuel injector No. 6 Fuel injector No. 4 Fuel injector No. 2	[Engine is running] Warm-up condition Engine speed: 2, 000 rpm	BATTERY VOLTAGE Courtesy of NISSAN NORTH AMERICA, INC.
45	V/R	EVAP canister purge volume control solenoid valve	[Engine is running] Idle speed Accelerator pedal: Not depressed even slightly, after engine starting.	BATTERY VOLTAGE Courtesy of NISSAN NORTH AMERICA, INC.
45	V/R	EVAP canister purge volume control solenoid valve	[Engine is running] Engine speed: About 2, 000 rpm (More than 100 seconds after starting engine)	BATTERY VOLTAGE Courtesy of NISSAN NORTH AMERICA, INC.
47	R	Throttle position sensor power supply	[Ignition switch: ON]	Approximately 5V
48	G/O	EVAP control system pressure sensor power supply	[Ignition switch: ON]	Approximately 5V
49	BR/Y	Refrigerant pressure sensor power supply	[Ignition switch: ON]	Approximately 5V
50	Y	Throttle position sensor 1	[Ignition switch: ON] Engine stopped Shift lever: D Accelerator pedal: Fully released	More than 0.36V
50	Y	Throttle position sensor 1	[Ignition switch: ON] Engine stopped Shift lever: D Accelerator pedal: Fully depressed	Less than 4.75V
51	W/L	Mass air flow sensor	[Engine is running] Warm-up condition Idle speed	1.0 - 1.3V
51	W/L	Mass air flow sensor	[Engine is running] Warm-up condition Engine speed: 2, 500 rpm	1.6 - 2.0V
54	P/L	EGR temperature sensor	[Ignition switch: ON]	Less than 4.5V
54	P/L	EGR temperature sensor	[Engine is running] Warm-up condition EGR system: Operating	0 - 1.5V
55	W	Heated oxygen sensor 2 (Bank 2)	[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 - Approximately 1.0V
57	W/R	A/F sensor 1 (Bank 2)	[Engine is running] Warm-up condition Idle speed	Approximately 2.6V
58	LG/R			Approximately 2.3V
76	O			Approximately 3.1V
77	LG			Approximately 2.3V
60 61 62	P/L L/R Y/R	Ignition signal No. 5 Ignition signal No. 3 Ignition signal No. 1	[Engine is running] Warm-up condition Idle speed NOTE: The pulse cycle changes depending on rpm at idle	Courtesy of NISSAN NORTH AMERICA, INC.
60 61 62	P/L L/R Y/R		[Engine is running] Warm-up condition Engine speed: 2, 500 rpm	Courtesy of NISSAN NORTH AMERICA, INC.
66	G	Throttle position sensor ground	[Engine is running] Warm-up condition Idle speed	Approximately 0V
67	B	Sensor ground	[Engine is running] Warm-up condition Idle speed	Approximately 0V
68	BR/W	PSP sensor power supply	[Ignition switch: ON]	Approximately 5V
69	L	Throttle position sensor 2	[Ignition switch: ON] Engine stopped Shift lever: D Accelerator pedal: Fully released	Less than 4.75V
69	L	Throttle position sensor 2	[Ignition switch: ON] Engine stopped Shift lever: D Accelerator pedal: Fully depressed	More than 0.36V
70	W	Refrigerant pressure sensor	[Engine is running] Warm-up condition Both A/C switch and blower fan switch: ON (Compressor operates.)	1.0 - 4.0V
73	Y/B	Engine coolant temperature sensor	[Engine is running]	Approximately 0 - 4.8V Output voltage varies with engine coolant temperature.
74	W	Heated oxygen sensor 2 (Bank 1)	[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 - Approximately 1.0V
78	B	Heated oxygen sensor 2 ground	[Engine is running] Warm-up condition Idle speed	Approximately 0V
79 80 81	GR/R GR G/R	Ignition signal No. 6 Ignition signal No. 4 Ignition signal No. 2	[Engine is running] Warm-up condition Idle speed NOTE: The pulse cycle changes depending on rpm at idle	Courtesy of NISSAN NORTH AMERICA, INC.
79 80 81	GR/R GR G/R		[Engine is running] Warm-up condition Engine speed: 2, 500 rpm	Courtesy of NISSAN NORTH AMERICA, INC.
82	B	APP sensor 1 ground	[Engine is running] Warm-up condition Idle speed	Approximately 0V
83	G	APP sensor 2 ground	[Engine is running] Warm-up condition Idle speed	Approximately 0V
85	SB	Data link connector	[Ignition switch: ON] CONSULT-II or GST: Disconnected	Approximately 5V - Battery voltage (11 - 14V)
86	P	CAN communication line	[Ignition switch: ON]	Approximately 1.1 - 2.3V Output voltage varies with the communication status.
90	R/V	APP sensor 1 power supply	[Ignition switch: ON]	Approximately 5V
91	O	APP sensor 2 power supply	[Ignition switch: ON]	Approximately 5V
94	L	CAN communication line	[Ignition switch: ON]	Approximately 2.5 - 3.2V Output voltage varies with the communication status.
98	W/B	Accelerator pedal position sensor 2	[Ignition switch: ON] Engine stopped Accelerator pedal: Fully released	0.25 - 0.5V
98	W/B	Accelerator pedal position sensor 2	[Ignition switch: ON] Engine stopped Accelerator pedal: Fully depressed	2.0 - 2.5V
99	G/Y	ASCD steering switch	[Ignition switch: ON] ASCD steering switch: OFF	Approximately 4V
			[Ignition switch: ON] MAIN switch: Pressed	Approximately 0V
			[Ignition switch: ON] CANCEL switch: Pressed	Approximately 1V
			[Ignition switch: ON] RESUME/ACCELERATE switch: Pressed	Approximately 3V
			[Ignition switch: ON] SET/COAST switch: Pressed	Approximately 2V
101	R/G	Stop lamp switch	[Ignition switch: OFF] Brake pedal: Fully released	Approximately 0V
101	R/G	Stop lamp switch	[Ignition switch: OFF] Brake pedal: Slightly depressed	BATTERY VOLTAGE (11 - 14V)
102	O/B	PNP switch	[Ignition switch: ON] Shift lever: P or N	BATTERY VOLTAGE (11 - 14V)
102	O/B	PNP switch	[Ignition switch: ON] Except the above gear position	Approximately 0V
104	O	Throttle control motor relay	[Ignition switch: OFF]	BATTERY VOLTAGE (11 - 14V)
104	O	Throttle control motor relay	[Ignition switch: ON]	0 - 1.0V
106	W	Accelerator pedal position sensor 1	[Ignition switch: ON] Engine stopped Accelerator pedal: Fully released	0.5 - 1.0V
106	W	Accelerator pedal position sensor 1	[Ignition switch: ON] Engine stopped Accelerator pedal: Fully depressed	4.2 - 4.8V
107	R/L	Fuel tank temperature sensor	[Engine is running]	Approximately 0 - 4.8V Output voltage varies with fuel tank temperature.
108	G/B	ASCD brake switch	[Ignition switch: ON] Brake pedal: Fully released	BATTERY VOLTAGE (11 - 14V)
108	G/B	ASCD brake switch	[Ignition switch: ON] Brake pedal: Slightly depressed	Approximately 0V
109	R	Ignition switch	[Ignition switch: OFF]	0V
109	R	Ignition switch	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
111	W/B	ECM relay (Self shut-off)	[Engine is running] [Ignition switch: OFF] For a few seconds after turning ignition switch OFF	0 - 1.5V
111	W/B	ECM relay (Self shut-off)	[Ignition switch: OFF] More than a few seconds after turning ignition switch OFF	BATTERY VOLTAGE (11 - 14V)
113	B/O	Fuel pump relay	[Ignition switch: ON] For 1 second after turning ignition switch ON [Engine is running]	0 - 1.5V
113	B/O	Fuel pump relay	[Ignition switch: ON] More than 1 second after turning ignition switch ON	BATTERY VOLTAGE (11 - 14V)
115 116	B B	ECM ground	[Engine is running] Idle speed	Body ground
117	LG/B	EVAP canister vent control valve	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
119 120	R/G R/G	Power supply for ECM	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
121	G	Power supply for ECM (Back-up)	[Ignition switch: OFF]	BATTERY VOLTAGE (11 - 14V)
*: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)