ECM Inspection Table

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

Pulse signal is measured by CONSULT-III.

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 TABLE

TERMINAL NO.	WIRE COLOR	ITEM	CONDITION	DATA (DC Voltage)
1	B	ECM ground	[Engine is running] Idle speed	Body ground
2	R/L	A/F sensor 1 heater (bank 1)	[Engine is running] Warm-up condition Idle speed	Courtesy of NISSAN MOTOR CO., U.S.A.
3	R	Throttle control motor relay power supply	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
4	L/W	Throttle control motor (Close)	[Ignition switch: ON] Engine stopped Selector lever: D Accelerator pedal: Fully released	Courtesy of NISSAN MOTOR CO., U.S.A.
5	L/B	Throttle control motor (Open)	[Ignition switch: ON] Engine stopped Selector lever: D Accelerator pedal: Fully depressed	Courtesy of NISSAN MOTOR CO., U.S.A.
6	R	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	R	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)
10	OR	Intake valve timing control solenoid valve (bank 2)	[Engine is running] Warm-up condition Idle speed	BATTERY VOLTAGE (11 - 14V)
10	OR	Intake valve timing control solenoid valve (bank 2)	[Engine is running] Warm-up condition When revving engine up to 2, 500 rpm quickly	Courtesy of NISSAN MOTOR CO., U.S.A.
11	BR	Intake valve timing control solenoid valve (bank 1)	[Engine is running] Warm-up condition Idle speed	BATTERY VOLTAGE (11 - 14V)
11	BR	Intake valve timing control solenoid valve (bank 1)	[Engine is running] Warm-up condition When revving engine up to 2, 500 rpm quickly	Courtesy of NISSAN MOTOR CO., U.S.A.
12	R/G	Power steering pressure sensor	[Engine is running] Steering wheel: Being turned	0.5 - 4.5V
12	R/G	Power steering pressure sensor	[Engine is running] Steering wheel: Not being turned	0.4 - 0.8V
13	Y	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 MOTOR CO., U.S.A.
13	Y	Crankshaft position sensor (POS)	[Engine is running] Engine speed: 2, 000 rpm	Courtesy of NISSAN MOTOR CO., U.S.A.
14	BR	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 MOTOR CO., U.S.A.
14	BR	Camshaft position sensor (PHASE) (bank 2)	[Engine is running] Engine speed: 2, 000 rpm	Courtesy of NISSAN MOTOR CO., U.S.A.
15	W	Knock sensor	[Engine is running] Idle speed	Approximately 2.5V
16	G	A/F sensor 1 (bank 1)	[Engine is running] Warm-up condition Idle speed	Approximately 3.1V
35	B/R			Approximately 2.6V
56	L			Approximately 2.3V
75	R/B			Approximately 2.3V
21 22 23	W G R	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	Courtesy of NISSAN MOTOR CO., U.S.A.
21 22 23	W G R	Fuel injector No. 5 Fuel injector No. 3 Fuel injector No. 1	[Engine is running] Warm-up condition Engine speed: 2, 000 rpm	Courtesy of NISSAN MOTOR CO., U.S.A.
24	L	A/F sensor 1 heater (Bank 2)	[Engine is running] Warm-up condition Idle speed	Courtesy of NISSAN MOTOR CO., U.S.A.
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)
32	OR	EVAP control system pressure sensor	[Ignition switch: ON]	Approximately 1.8 - 4.8V
33	R/L	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 MOTOR CO., U.S.A.
33	R/L	Camshaft position sensor (PHASE) (bank 1)	[Engine is running] Engine speed: 2, 000 rpm	Courtesy of NISSAN MOTOR CO., U.S.A.
34	OR	Intake air temperature sensor	[Engine is running]	Approximately 0 - 4.8V Output voltage varies with intake air temperature.
40 41 42	LG B P	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	Courtesy of NISSAN MOTOR CO., U.S.A.
40 41 42	LG B P	Fuel injector No. 6 Fuel injector No. 4 Fuel injector No. 2	[Engine is running] Warm-up condition Engine speed: 2, 000 rpm	Courtesy of NISSAN MOTOR CO., U.S.A.
45	GY	EVAP canister purge volume control solenoid valve	[Engine is running] Idle speed Accelerator pedal is not depressed even slightly, after engine starting	Courtesy of NISSAN MOTOR CO., U.S.A.
45	GY	EVAP canister purge volume control solenoid valve	[Engine is running] Engine speed is about 2, 000 rpm (More than 100 seconds after starting engine)	Courtesy of NISSAN MOTOR CO., U.S.A.
47	L	Sensor power supply (Throttle position sensor)	[Ignition switch: ON]	Approximately 5V
48	LG	Sensor power supply (EVAP control system pressure sensor)	[Ignition switch: ON]	Approximately 5V
49	PU	Sensor power supply (Refrigerant pressure sensor)	[Ignition switch: ON]	Approximately 5V
50	W	Throttle position sensor 1	[Ignition switch: ON] Engine stopped Selector lever: D Accelerator pedal: Fully released	More than 0.36V
50	W	Throttle position sensor 1	[Ignition switch: ON] Engine stopped Selector lever: D Accelerator pedal: Fully depressed	Less than 4.75V
51	L/W	Mass air flow sensor	[Engine is running] Warm-up condition Idle speed	1.0 - 1.2V
51	L/W	Mass air flow sensor	[Engine is running] Warm-up condition Engine speed: 2, 500 rpm	1.6 - 2.0V
55	W/R	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	G	A/F sensor 1 (Bank 2)	[Engine is running] Warm-up condition Idle speed	Approximately 2.6V
58	Y			Approximately 2.3V
76	P			Approximately 3.1V
77	BR			Approximately 2.3V
60 61 62	PU L Y	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 MOTOR CO., U.S.A.
60 61 62	PU L Y		[Engine is running] Warm-up condition Engine speed: 2, 500 rpm	Courtesy of NISSAN MOTOR CO., U.S.A.
66	B	Sensor ground (Throttle position sensor)	[Engine is running] Warm-up condition Idle speed	Approximately 0V
67	B/W	Sensor ground	[Engine is running] Warm-up condition Idle speed	Approximately 0V
68	BR	Sensor power supply (Power steering pressure sensor)	[Ignition switch: ON]	Approximately 5V
69	R	Throttle position sensor 2	[Ignition switch: ON] Engine stopped Selector lever: D Accelerator pedal: Fully released	Less than 4.75V
69	R	Throttle position sensor 2	[Ignition switch: ON] Engine stopped Selector lever: D Accelerator pedal: Fully depressed	More than 0.36V
70	L/R	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	Engine coolant temperature sensor	[Engine is running]	Approximately 0 - 4.8V Output voltage varies with engine coolant temperature.
74	LG/B	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/R	Sensor ground (Heated oxygen sensor)	[Engine is running] Warm-up condition Idle speed	Approximately 0V
79 80 81	SB GY OR	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 MOTOR CO., U.S.A.
79 80 81	SB GY OR		[Engine is running] Warm-up condition Engine speed: 2, 500 rpm	Courtesy of NISSAN MOTOR CO., U.S.A.
82	B/W	Sensor ground (APP sensor 1, ASCD steering switch, ICC steering switch)	[Engine is running] Warm-up condition Idle speed	Approximately 0V
83	G/OR	Sensor ground (APP sensor 2)	[Engine is running] Warm-up condition Idle speed	Approximately 0V
85	PU	Data link connector	[Ignition switch: ON] CONSULT-III 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	L/B	Sensor power supply (APP sensor 1)	[Ignition switch: ON]	Approximately 5V
91	G	Sensor power supply (APP sensor 2)	[Ignition switch: ON]	Approximately 5V
94	L	CAN communication line	[Ignition switch: ON]	Approximately 2.6 - 3.2V Output voltage varies with the communication status.
98	Y/R	Accelerator pedal position sensor 2	[Ignition switch: ON] Engine stopped Accelerator pedal: Fully released	0.15 - 0.60V
98	Y/R	Accelerator pedal position sensor 2	[Ignition switch: ON] Engine stopped Accelerator pedal: Fully depressed	1.95 - 2.40V
99	G/Y	ICC steering switch (models with ICC system)	[Ignition switch: ON] ICC steering switch: OFF	Approximately 4.3V
			[Ignition switch: ON] MAIN switch: Pressed	Approximately 0V
			[Ignition switch: ON] CANCEL switch: Pressed	Approximately 1.3V
			[Ignition switch: ON] RESUME/ACCELERATE switch: Pressed	Approximately 3.7V
			[Ignition switch: ON] SET/COAST switch: Pressed	Approximately 3.0V
			[Ignition switch: ON] DISTANCE switch: Pressed	Approximately 2.2V
99	G/Y	ASCD steering switch (models with ASCD system)	[Ignition switch: ON] ASCD steering switch: OFF	Approximately 4.0V
			[Ignition switch: ON] MAIN switch: Pressed	Approximately 0V
			[Ignition switch: ON] CANCEL switch: Pressed	Approximately 1.0V
			[Ignition switch: ON] RESUME/ACCELERATE switch: Pressed	Approximately 3.0V
			[Ignition switch: ON] SET/COAST switch: Pressed	Approximately 2.0V
101	P/L	Stop lamp switch	[Ignition switch: OFF] Brake pedal: Fully released	Approximately 0V
101	P/L	Stop lamp switch	[Ignition switch: OFF] Brake pedal: Slightly depressed	BATTERY VOLTAGE (11 - 14V)
102	LG/B	PNP switch	[Ignition switch: ON] Selector lever: P or N	Approximately 0V
102	LG/B	PNP switch	[Ignition switch: ON] Except above position	BATTERY VOLTAGE (11 - 14V)
104	L/OR	Throttle control motor relay	[Ignition switch: OFF]	BATTERY VOLTAGE (11 - 14V)
104	L/OR	Throttle control motor relay	[Ignition switch: ON]	0 - 1.0V
106	OR	Accelerator pedal position sensor 1	[Ignition switch: ON] Engine stopped Accelerator pedal: Fully released	0.5 - 1.0V
106	OR	Accelerator pedal position sensor 1	[Ignition switch: ON] Engine stopped Accelerator pedal: Fully depressed	3.9 - 4.7V
107	PU/W	Fuel tank temperature sensor	[Engine is running]	Approximately 0 - 4.8V Output voltage varies with fuel tank temperature.
108	SB	ICC brake switch (models with ICC system) ASCD brake switch (models with ASCD system)	[Ignition switch: ON] Brake pedal: Slightly depressed	Approximately 0V
108	SB		[Ignition switch: ON] Brake pedal: Fully released	BATTERY VOLTAGE (11 - 14V)
109	W/L	Ignition switch	[Ignition switch: OFF]	0V
109	W/L	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	GY/R	Fuel pump relay	[Ignition switch: ON] For 1 second after turning ignition switch ON [Engine is running]	0 - 1.5V
113	GY/R	Fuel pump relay	[Ignition switch: ON] More than 1 second after turning ignition switch ON	BATTERY VOLTAGE (11 - 14V)
115 116	B/R B/W	ECM ground	[Engine is running] Idle speed	Body ground
117	R/Y	EVAP canister vent control valve	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
119 120	R R/B	Power supply for ECM	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
121	R/W	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.)