Engine Control Module (ECM) Circuit Diagrams

ECM Terminal and Input/Output Signal

ECM Terminal Function Connector [A]

Pin No.	Description	Connected To
1	Ignition Coil Control Output (Cylinder No. 4)	Ignition Coil (Cylinder No. 4)
2	Ignition Coil Control Output (Cylinder #3)	Ignition Coil (Cylinder No. 3)
3	-
4	-
5	Injector (Cylinder No. 3) [Low] Control Output	Injector (Cylinder #3)
6	-
7	Engine Coolant Temperature Sensor (ECTS) Signal Input	Engine Coolant Temperature Sensor (ECTS)
8	Exhaust Gas Temperature Sensor (EGTS) No. 1 Signal Input	Exhaust Gas Temperature Sensor (EGTS) No. 1
9	Boost Pressure Sensor (BPS) Input Signal	Boost Pressure Sensor (BPS)
10	Exhaust Gas Temperature Sensor (EGTS) No. 2 Input Signal	Exhaust Gas Temperature Sensor (EGTS) No. 2
11	-
12	-
13	Throttle Position Sensor (TPS) 1 Signal Input	Throttle Position Sensor (TPS) 1 [ETC Module]
14	Accelerator Pedal Position Sensor (APS) 1 Signal Input	Accelerator Pedal Position Sensor (APS) 1
15	-
16	Ignition Coil Control Output (Cylinder #2)	Ignition Coil (Cylinder No. 2)
17	Ignition Coil Control Output (Cylinder No. 1)	Ignition Coil (Cylinder No. 1)
18	ETC Motor [+] Control Output	ETC motor
19	-
20	Injector (Cylinder No. 2) [Low] Control Output	Injector (Cylinder #2)
21	-
22	-
23	-
24	Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] Input Signal	Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
25	-
26	Vehicle Speed Input Signal [with ABS/ESP]	Smart Key Control Module
27	Start Signal Input	Inhibitor Switch
28	Brake Check Switch Input Signal	Brake Switch
29	Stop Lamp Switch Input Signal	Brake Switch
30	-
31	Injector (Cylinder No. 2) [High] Control Output	Injector (Cylinder #2)
32	Injector (Cylinder No. 3) [High] Control Output	Injector (Cylinder #3)
33	-
34	Injector (Cylinder No. 1) [Low] Control Output	Injector (Cylinder No. 1)
35	Fuel Pressure Control Valve (FPCV) [High] Control Output	Fuel Pressure Control Valve (FPCV)
36	Sensor Ground	Camshaft Position Sensor (CMPS) [Bank 1 / Intake]
37	Sensor Ground	Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
38	Generator Electrical Load (FR) Input Signal	Generator
39	-
40	-
41	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Input Signal	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]
42	-
43	-
44	-
45	Electrical Load Input Signal [Defrost]	Air Conditioning Control Module
46	Injector (Cylinder No. 4) [High] Control Output	Injector (Cylinder No. 4)
47	Injector (Cylinder No. 1) [High] Control Output	Injector (Cylinder No. 1)
48	ETC Motor [-] Control Output	ETC motor
49	Injector (Cylinder No. 4) [Low] Control Output	Injector (Cylinder No. 4)
50	Fuel Pressure Control Valve (FPCV) [Low] Control Output	Fuel Pressure Control Valve (FPCV)
51	-	Vehicle speed sensor
52	-	Vehicle speed sensor
53	Sensor Ground	Crankshaft Position (CKP) sensor
54	Crankshaft Position Sensor Input Signal	Crankshaft Position (CKP) sensor
55	-
56	Camshaft Position Sensor (CMPS) [Bank 1/Intake] Signal Input	Camshaft Position Sensor (CMPS) [Bank 1 / Intake]
57	Sensor Ground	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]
58	-
59	-
60	-

Connector [K]

Pin No.	Description	Connected To
1	ECM Ground	Ground
2	ECM Ground	Ground
3	ECM Ground	Ground
4	Battery Power (B+)	Battery
5	Battery Power (B+)	Main Relay
6	Battery Power (B+)	Main Relay
7	Battery Power (B+)	Battery
8	Sensor Ground	Accelerator Pedal Position Sensor (APS) 1
9	Sensor Ground	Manifold Absolute Pressure Sensor (MAPS)
10	Sensor Ground	Boost Pressure Sensor (BPS)
11	-
12	-
13	-
14	Sensor Ground	Exhaust Gas Temperature Sensor (EGTS) No. 2
15	-
16	Sensor Ground	Engine Coolant Temperature Sensor (ECTS)
17	-
18	-
19	Wastegate Valve (WGV) Solenoid Control Output	Wastegate Valve Solenoid (WGV)
20	-
21	-
22	CVVT Oil Control Valve (OCV) [Bank 1/Intake] Control Output	CVVT Oil Control Valve (OCV) [Bank 1/Intake]
23	-
24	Cooling Fan Relay Control Output [PWM]	Cooling Fan Relay
25	-
26	-
27	Fuel Pump Relay Control Output (Smart Key Type)	Fuel Pump Relay
28	-
29	Ignition Switch Input Signal	Ignition Lock
30	Sensor Ground	Accelerator Pedal Position Sensor (APS) 2
31	-
32	Sensor Ground	Exhaust Gas Temperature Sensor (EGTS) No. 1
33	-
34	-
35	-
36	Sensor Ground	Rail Pressure Sensor (RPS)
37	Sensor Ground	Air Conditioning Pressure Sensor (APT)
38	-
39	Generator Target Voltage Data Output Signal (COM)	Generator
40	-
41	Starter Relay Control Output	Starter Relay
42	-
43	Sensor Power Supply (+5V)	Accelerator Pedal Position Sensor (APS) 2
44	Sensor Power Supply (+5V)	Camshaft Position Sensor (CMPS) [Bank 1 / Intake]
		Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
45	-
46	-
47	-
48	-
49	-
50	CVVT Oil Control Valve (OCV) Control Output [Bank 1/Exhaust]	CVVT Oil Control Valve (OCV) [Bank 1/Exhaust]
51	Battery Power (B+)	Main Relay
52	Sensor Ground	Throttle Position Sensor (TPS) [ETC Module]
53	-
54	Air Conditioning Pressure Sensor (APT) Signal Input	Air Conditioning Pressure Sensor (APT)
55	-
56	Intake Air Temperature Sensor (IATS) Input Signal	Intake Air Temperature Sensor (IATS)
57	Manifold Absolute Pressure Sensor (MAPS) Signal Input	Manifold Absolute Pressure Sensor (MAPS)
58	Sensor Ground	Knock Sensor (KS)
59	VS+ (Nernst Cell Voltage)	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
60	Rc (Compensation Resistance)	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
61	-
62	CCP-CAN [Low]	Other Control Module, Data Link Connector (DLC), Multi-Purpose Check Connector
63	C-CAN [Low]	Other Control Module, Data Link Connector (DLC), Multi-Purpose Check Connector
64	-
65	-
66	Sensor Power Supply (+5V)	Accelerator Pedal Position Sensor (APS) 1
67	-
68	RCV Control Solenoid Valve Control Output	RCV Control Solenoid
69	-
70	-
71	Fuel Pump Relay Control Output (Non-Smart Key)	Fuel Pump Relay
72	-
73	-
74	Throttle Position Sensor (TPS) 2 Signal Input	Throttle Position Sensor (TPS) 2 [ETC Module]
75	-
76	Fuel Level Input Signal	Fuel Level Sensor (FLS)
77	Accelerator Pedal Position Sensor (APS) 2 Signal Input	Accelerator Pedal Position Sensor (APS) 2
78	Rail Pressure Sensor (RPS) Signal Input	Rail Pressure Sensor (RPS)
79	Knock Sensor (KS) Signal Input	Knock Sensor (KS)
80	VS-/IP- (Common Ground for VS, IP)	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
81	Rc/Rp (Pump Cell Voltage)	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
82	Engine Speed Output Signal	Smart Key Control Module
83	Immobilizer Communication Line	Smart Key Control Module [with Smart Key System]
		Immobilizer Control Module [without Smart Key System]
84	CCP-CAN [High]	Other Control Module, Data Link Connector (DLC), Multi-Purpose Check Connector
85	C-CAN [High]	Other Control Module, Data Link Connector (DLC), Multi-Purpose Check Connector
86	Sensor Power Supply (+5V)	Manifold Absolute Pressure Sensor (MAPS)
87	Sensor Power Supply (+5V)	Rail Pressure Sensor (RPS)
		Boost Pressure Sensor (BPS)
		Air Conditioning Pressure Sensor (APT)
88	Sensor Power Supply (+5V)	Throttle Position Sensor (TPS) 1,2 [ETC Module]
89	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Heater Control Output	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
90	-
91	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Heater Control Output	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
92	-
93	-
94	Purge Control Solenoid Valve (PCSV) Control Output	Purge Control Solenoid Valve (PCSV)

ECM Terminal Input/Output Signal Connector [A]

Pin No.	Description	Condition	Type	Level
1	Ignition Coil Control Output (Cylinder No. 4)	Idle	Pulse	1st Voltage: 370–430 V
				Voltage ON: Max. 2.2 V
2	Ignition Coil Control Output (Cylinder #3)	Idle	Pulse	1st Voltage: 370–430 V
				Voltage ON: Max. 2.2 V
3	-
4	-
5	Injector (Cylinder No. 3) [Low] Control Output	Relay OFF	DC	71 V
		Relay ON		Max. 1.0 V
6	-
7	Engine Coolant Temperature Sensor (ECTS) Signal Input	Idle	Analog	0.270 - 4.77 V
8	Exhaust Gas Temperature Sensor (EGTS) No. 1 Signal Input
9	Boost Pressure Sensor (BPS) Input Signal
10	Exhaust Gas Temperature Sensor (EGTS) No. 2 Input Signal
11	-
12	-
13	Throttle Position Sensor (TPS) 1 Signal Input	Idle	Analog	0.33 - 4.72 V
14	Accelerator Pedal Position Sensor (APS) 1 Signal Input	Idle	Analog	0.674 - 4.379 V
15	-
16	Ignition Coil Control Output (Cylinder #2)	Idle	Pulse	1st Voltage: 370–430 V
				Voltage ON: Max. 2.2 V
17	Ignition Coil Control Output (Cylinder No. 1)	Idle	Pulse	1st Voltage: 370–430 V
				Voltage ON: Max. 2.2 V
18	ETC Motor [+] Control Output	Idle	Pulse	High: Battery voltage
				Low: Max. 1.0 V
19	-
20	Injector (Cylinder No. 2) [Low] Control Output	Relay OFF	DC	71 V
		Relay ON		Max. 1.0 V
21	-
22	-
23	-
24	Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] Input Signal	Idle	Pulse	High: Min. 4.8 V
				Low: Max. 0.6 V
25	-
26	Vehicle Speed Signal Input
27	Start Signal Input	ON	Pulse	High: Battery voltage
		OFF		Max. 2 V
28	Brake Check Switch Input Signal	ON	DC	Battery Voltage
		OFF		Max. 2.25 V
29	Stop Lamp Switch Input Signal	ON	DC	Battery Voltage
		OFF		Max. 2.25 V
30	-
31	Injector (Cylinder No. 2) [High] Control Output	Relay ON/OFF	DC	71 V
32	Injector (Cylinder No. 3) [High] Control Output	Relay ON/OFF	DC	71 V
33	-
34	Injector (Cylinder No. 1) [Low] Control Output	Relay OFF	DC	71 V
		Relay ON		Max. 1.0 V
35	Fuel Pressure Control Valve (FPCV) [High] Control Output	Relay ON/OFF	DC	16 V
36	Sensor Ground	Idle	DC	Max. 50 mV
37	Sensor Ground	Idle	DC	Max. 50 mV
38	Generator Electrical Load (FR) Input Signal	Idle	Pulse	High: Battery voltage
				Low: Max. 1.5 V
39	-
40	-
41	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Input Signal	Engine	Analog	Rich: 0.6 - 1.0 V
		Run		Lean: Max. 0.4 V
42	-
43	-
44	-
45	Electrical Load Input Signal [Defrost]	ON	DC	Battery Voltage
		OFF		Max. 2.25 V
46	Injector (Cylinder No. 4) [High] Control Output	Relay ON/OFF	DC	71 V
47	Injector (Cylinder No. 1) [High] Control Output	Relay ON/OFF	DC	71 V
48	ETC Motor [-] Control Output	Idle	Pulse	High: Battery voltage
				Low: Max. 1.0 V
49	Injector (Cylinder No. 4) [Low] Control Output	Relay OFF	DC	71 V
		Relay ON		Max. 1.0 V
50	Fuel Pressure Control Valve (FPCV) [Low] Control Output	Relay OFF	DC	16 V
		Relay ON		Max. 1.0 V
51	Vehicle Speed Input Signal [without ABS/ESP]	Idle	Pulse	High: Min. 5.4 V
				Low: Max. 2.25 V
52	Vehicle Speed Input Signal [without ABS/ESP]	Idle	Pulse	High: Min. 5.4 V
				Low: Max. 2.25 V
53	Sensor Ground	Idle	DC	Max. 50 mV
54	Crankshaft Position Sensor Input Signal
55	-
56	Camshaft Position Sensor (CMPS) [Bank 1/Intake] Signal Input	Idle	Pulse	High: Min. 4.8 V
				Low: Max. 0.6 V
57	Sensor Ground	Idle	DC	Max. 50 mV
58	-
59	-
60	-

Connector [K]

Pin No.	Description	Condition	Type	Level
1	ECM Ground	Idle	DC	Max. 50 mV
2	ECM Ground	Idle	DC	Max. 50 mV
3	ECM Ground	Idle	DC	Max. 50 mV
4	Battery Power (B+)	IG OFF	DC	Max. 1.0 V
		IGNITION ON		Battery Voltage
5	Battery Power (B+)	IG OFF	DC	Max. 1.0 V
		IGNITION ON		Battery Voltage
6	Battery Power (B+)	IG OFF	DC	Max. 1.0 V
		IGNITION ON		Battery Voltage
7	Battery Power (B+)	IG OFF	DC	Max. 1.0 V
		IGNITION ON		Battery Voltage
8	Sensor Ground	Idle	DC	Max. 50 mV
9	Sensor Ground	Idle	DC	Max. 50 mV
10	Sensor Ground	Idle	DC	Max. 50 mV
11	-
12	-
13	-
14	Sensor Ground	Idle	DC	Max. 50 mV
15	-
16	Sensor Ground	Idle	DC	Max. 50 mV
17	-
18	-
19	RCV Control Solenoid Valve Control Output	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 1.76 V
20	A/C Compressor Relay Control Output	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 1.0 V
21	-
22	CVVT Oil Control Valve (OCV) [Bank 1/Intake] Control Output	Idle	Pulse	High: Battery voltage
				Low: Max. 1.65 V
23	-
24	Cooling Fan Relay Control Output [PWM]	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 1.76 V
25	-
26	-
27	Fuel Pump Relay Control Output (Smart Key Type)	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 1.44 V
28	-
29	Ignition Switch Input Signal	IG OFF	DC	Max. 1.0 V
		IGNITION ON		Battery Voltage
30	Sensor Ground	Idle	DC	Max. 50 mV
31	-
32	Sensor Ground	Idle	DC	Max. 50 mV
33	-
34	-
35	-
36	Sensor Ground	Idle	DC	-
37	Sensor Ground	Idle	DC	Max. 50 mV
38	-
39	Generator Target Voltage Data Output Signal (COM)	Idle	Pulse	High: Battery voltage
				Low: Max. 0.6 V
40	-
41	Starter Relay Control Output	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 2.64 V
42	-
43	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
		IGNITION ON		4.9 - 5.1 V
44	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
		IGNITION ON		4.9 - 5.1 V
45	-
46	-
47	-
48	-
49	-
50	CVVT Oil Control Valve (OCV) Control Output [Bank 1/Exhaust]	Idle	Pulse	High: Battery voltage
				Low: Max. 1.65 V
51	Battery Power (B+)	IG OFF	DC	Max. 1.0 V
		IGNITION ON		Battery Voltage
52	Sensor Ground	Idle	DC	Max. 50 mV
53	-
54	Air Conditioning Pressure Sensor (APT) Signal Input	A/C ON	Analog	0.348 - 4.63 V
55	-
56	Intake Air Temperature Sensor (IATS) Input Signal	Idle	Analog	0.209 - 4.756 V
57	Manifold Absolute Pressure Sensor (MAPS) Signal Input	Idle	Analog	0.6683 - 4.346 V
58	Sensor Ground	Knock	Variable
		Normal	Frequency
59	VS+ (Nernst Cell Voltage)	Idle	Analog	0–5.1 V
60	Rc (Compensation Resistance)	Idle	Analog	0–5.1 V
61	LIN Communication Input Signal
62	CCP-CAN [Low]	RECESSIVE	Pulse	2.0–3.0 V
		DOMINANT		0.5 - 2.25 V
63	C-CAN [Low]	RECESSIVE	Pulse	2.0–3.0 V
		DOMINANT		0.5 - 2.25 V
64	-
65	-
66	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
		IGNITION ON		4.9 - 5.1 V
67	-
68	RCV Control Solenoid Valve Control Output	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 1.76 V
69	-
70	-
71	Fuel Pump Relay Control Output (Non-Smart Key)	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 1.44 V
72	-
73	-
74	Throttle Position Sensor (TPS) 2 Signal Input	Idle	Analog	0.55–4.37 V
75	-
76	Fuel Level Input Signal	Idle	Analog	0.193 - 4.0 V
77	Accelerator Pedal Position Sensor (APS) 2 Signal Input	Idle	Analog	0.261 - 2.204 V
78	Rail Pressure Sensor (RPS) Signal Input	Idle	Analog	0.43–3.46 V
79	Knock Sensor (KS) Signal Input	Knock	Variable
		Normal	Frequency
80	VS-/IP- (Common Ground for VS, IP)	Idle	DC	Max. 50 mV
81	Rc/Rp (Pump Cell Voltage)	Idle	Analog	0–5.1 V
82	Engine Speed Output Signal
83	Immobilizer Communication Line	During transmission	Pulse	High: Min. 8.4 V (at 14 V)
				Low: Max. 6.44 V (at 14 V)
84	CCP-CAN [High]	RECESSIVE	Pulse	2.0–3.0 V
		DOMINANT		2.75 - 4.5 V
85	C-CAN [High]	RECESSIVE	Pulse	2.0–3.0 V
		DOMINANT		2.75 - 4.5 V
86	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
		IGNITION ON		4.9 - 5.1 V
87	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
		IGNITION ON		4.9 - 5.1 V
88	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
		IGNITION ON		4.9 - 5.1 V
89	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Heater Control Output	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 1.65 V
90	-
91	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Heater Control Output	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 1.65 V
92	-
93	-
94	Purge Control Solenoid Valve (PCSV) Control Output	Relay OFF	DC	Battery Voltage
		Relay ON		Max. 1.76 V