ECM Inspection Table

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

Pulse signal is measured by CONSULT-III.

TERMINAL NO.	WIRE COLOR	ITEM	CONDITION	DATA (DC Voltage)
1	B	ECM ground	[Engine is running]  Idle speed	Body ground
2	SB	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	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	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/L	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
			[Ignition switch: ON]  Engine stopped [Engine is running]  Engine speed: Above 3, 600 RPM	BATTERY VOLTAGE (11 - 14V)
10	W/G	Intake valve timing control solenoid valve (bank 2)	[Engine is running]  Warm-up condition  Idle speed	BATTERY VOLTAGE (11 - 14V)
			[Engine is running]  Warm-up condition  When revving engine up to 2, 000rpm quickly	Courtesy of NISSAN MOTOR CO., U.S.A.
11	W/R	Intake valve timing control solenoid valve (bank 1)	[Engine is running]  Warm-up condition  Idle speed	BATTERY VOLTAGE (11 - 14V)
			[Engine is running]  Warm-up condition  When revving engine up to 2, 000rpm 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
			[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 MOTOR CO., U.S.A.
			[Engine is running]  Engine speed: 2, 000 RPM	Courtesy of NISSAN MOTOR CO., U.S.A.
14	L	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.
			[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/W	A/F sensor 1 (bank 1)	[Engine is running]  Warm-up condition  Idle speed	Approximately 3.1V
35	BR/W			Approximately 2.6V
56	G			Approximately 2.3V
75	GR			Approximately 2.3V
21 22 23 40 41 42	W R/Y R/B V/R P/L R/W	Fuel injector No. 5 Fuel injector No. 3 Fuel injector No. 1 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.
			[Engine is running]  Warm-up condition  Engine speed: 2, 000 RPM	Courtesy of NISSAN MOTOR CO., U.S.A.
24	O	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/B	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
			[Ignition switch: ON]  Engine stopped [Engine is running]  Engine speed: Above 3, 600 RPM	BATTERY VOLTAGE (11 - 14V)
32	R/G	EVAP control system pressure sensor	[Ignition switch: ON]	Approximately 1.8 - 4.8V
33	LG	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.
			[Engine is running]  Engine speed: 2, 000 RPM	Courtesy of NISSAN MOTOR CO., U.S.A.
34	Y/G	Intake air temperature sensor	[Engine is running]	Approximately 0 - 4.8V Output voltage varies with intake air temperature.
38	G/R	Fuel pump control module (FPCM) check	[When cranking engine]	Approximately 0V
			[Engine is running]  Warm-up condition  Idle speed	4 - 6V
39	B/R	Fuel pump control module (FPCM)	[When cranking engine]	0 - 0.5V
			[Engine is running]  Warm-up condition  Idle speed	8 - 12V
45	V	EVAP canister purge volume control solenoid valve	[Engine is running]  Idle speed Accelerator pedal: Not depressed even slightly, after engine starting	Courtesy of NISSAN MOTOR CO., U.S.A.
			[Engine is running]  Engine speed: About 2, 000 RPM (More than 100 seconds after starting engine)	Courtesy of NISSAN MOTOR CO., U.S.A.
47	G	Sensor power supply (Throttle position sensor)	[Ignition switch: ON]	Approximately 5V
48	B/R	Sensor power supply (EVAP control system pressure sensor)	[Ignition switch: ON]	Approximately 5V
49	BY	Sensor power supply (Refrigerant pressure sensor, Battery current 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
			[Ignition switch: ON]  Engine stopped Selector lever: D Accelerator pedal: Fully depressed	Less than 4.75V
51	W	Mass air flow sensor	[Engine is running]  Warm-up condition  Idle speed	0.9 - 1.2V
			[Engine is running]  Warm-up condition  Engine speed: 2, 500 RPM	1.6 - 1.9V
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	GR/L	A/F sensor 1 (bank 2)	[Engine is running]  Warm-up condition  Idle speed	Approximately 2.6V
58	LG/B			Approximately 2.3V
76	W/L			Approximately 3.1V
77	Y			Approximately 2.3V
60 61 62 79 80 81	V/W P Y/R GR/R GR/B G/R	Ignition signal No. 5 Ignition signal No. 3 Ignition signal No. 1 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.
			[Engine is running]  Warm-up condition  Engine speed: 2, 000 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	L/Y	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
			[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 motor switch: ON (Compressor operates)	1.0 - 4.0V
71	L/R	Battery current sensor	[Engine is running]  Battery: Fully charged(1) Idle speed	Approximately 2.6 - 3.5V
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	Sensor ground (Heated oxygen sensor)	[Engine is running]  Warm-up condition  Idle speed	Approximately 0V
82	W	Sensor ground (APP sensor 1)	[Engine is running]  Warm-up condition  Idle speed	Approximately 0V
83	P	Sensor ground (APP sensor 2)	[Engine is running]  Warm-up condition  Idle speed	Approximately 0V
85	V	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	Sensor power supply (APP sensor 1)	[Ignition switch: ON]	Approximately 5V
91	BR	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	R	Accelerator pedal position sensor 2	[Ignition switch: ON]  Engine stopped Accelerator pedal: Fully released	0.20 - 0.55V
			[Ignition switch: ON]  Engine stopped Accelerator pedal: Fully depressed	1.85 - 2.40V
99	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 3V
			[Ignition switch: ON]  DISTANCE switch: Pressed	Approximately 2.2V
99	Y	ASCD steering switch (models with ASCD system)	[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	V/R	Stop lamp switch	[Ignition switch: OFF]  Brake pedal: Fully released	Approximately 0V
			[Ignition switch: OFF]  Brake pedal: Slightly depressed	BATTERY VOLTAGE (11 - 14V)
102	G	PNP switch	[Ignition switch: ON]  Selector lever: P or N	Approximately 0V
			[Ignition switch: ON]  Selector lever: Except above	BATTERY VOLTAGE (11 - 14V)
104	O	Throttle control motor relay	[Ignition switch: OFF]	BATTERY VOLTAGE (11 - 14V)
			[Ignition switch: ON]	0 - 1.0V
106	LG	Accelerator pedal position sensor 1	[Ignition switch: ON]  Engine stopped Accelerator pedal: Fully released	0.4 - 1.1V
			[Ignition switch: ON]  Engine stopped Accelerator pedal: Fully depressed	3.7 - 4.8V
107	V/W	Fuel tank temperature sensor	[Engine is running]	Approximately 0 - 4.8V Output voltage varies with fuel tank temperature.
108	BR	ICC brake switch (models with ICC system) ASCD brake switch (models with ASCD system)	[Ignition switch: ON]  Brake pedal: Slightly depressed	Approximately 0V
			[Ignition switch: ON]  Brake pedal: Fully released	BATTERY VOLTAGE (11 - 14V)
109	L	Ignition switch	[Ignition switch: OFF]	0V
			[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
111	SB	ECM relay (Self shut-off)	[Engine is running]  [Ignition switch: OFF]  For a few seconds after turning ignition switch OFF	0 - 1.5V
			[Ignition switch: OFF]  More than a few seconds after turning ignition switch OFF	BATTERY VOLTAGE (11 - 14V)
113	GR	Fuel pump relay	[Ignition switch: ON]  For 1 second after turning ignition switch ON [Engine is running]	0 - 1.5V
			[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	GR/L	EVAP canister vent control valve	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
119 120	R R	Power supply for ECM	[Ignition switch: ON]	BATTERY VOLTAGE (11 - 14V)
121	L	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.) (1) Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to "SPECIFIC GRAVITY CHECK ".