Kia Rio: Engine Control System / Engine Control Module (ECM)

Circuit Diagrams

Engine Control Module (ECM)

Harness Connector

Terminal Function [M/T]

Connector [A]

Pin No.	Description	Connected To
1	Ignition Coil Control Output (Cylinder No. 1)	Ignition Coil (Cylinder No. 1)
2	Ignition Coil Control Output (Cylinder No. 4)	Ignition Coil (Cylinder No. 4)
3	Ignition Coil Control Output (Cylinder #2)	Ignition Coil (Cylinder No. 2)
4	Purge Control Solenoid Valve Control Output	Purge Control Solenoid Valve (PCSV)
5	Ignition Coil Control Output (Cylinder #3)	Ignition Coil (Cylinder No. 3)
6	Injector Control Output (Cylinder #2)	Injector (Cylinder #2)
7	Injector Control Output (Cylinder No. 1)	Injector (Cylinder No. 1)
8	Heated Oxygen Sensor [Bank 1/Sensor 2] Heater Control Output	Heated Oxygen Sensor [Bank 1/Sensor 2]
9	Injector Control Output (Cylinder #4)	Injector (Cylinder No. 4)
10	Heated Oxygen Sensor [Bank 1/Sensor 1] Heater Control Output	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
11	-
12	-
13	Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] Signal Input	Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
14	-
15	Sensor Ground	Brake Booster Vacuum Pressure Sensor (BBVPS) [With ISG]
16	-
17	Sensor Ground	Engine Coolant Temperature Sensor (ECTS)
18	Sensor Ground	Manifold Absolute Pressure Sensor (MAPS)
19	-
20	Cooling Fan Relay [High] Control Output	Radiator Cooling Fan Relay [High Speed]
21	Engine Speed Signal Output	Smart Key Control Module
22	-
23	Camshaft Position Sensor (CMPS) [Bank 1/Intake] Signal Input	Camshaft Position Sensor (CMPS) [Bank 1/Intake]
24	Brake Booster Vacuum Sensor Signal Input	Brake Booster Vacuum Pressure Sensor (BBVPS) [With ISG]
25	-
26	Engine Coolant Temperature Sensor (ECTS) Signal Input	Engine Coolant Temperature Sensor (ECTS)
27	Manifold Absolute Pressure Sensor (MAPS) Signal Input	Manifold Absolute Pressure Sensor (MAPS)
28	Sensor Ground	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
29	Vehicle Speed Signal Input	ABS/ESP Control Module [with ABS/ESP]
30	-
31	Electrical Load Signal Input (Defrost)	A/C Control Module, Outside Mirror
32	Generator Signal Input [FR]	Generator
33	Heated Oxygen Sensor Input Signal [Bank 1/Sensor 2]	Heated Oxygen Sensor [Bank 1/Sensor 2]
34	Sensor Ground	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
35	-
36	Heated Oxygen Sensor Signal Input [Bank 1/Sensor 1]	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
37	-
38	Injector Control Output (Cylinder #3)	Injector (Cylinder #3)
39	-
40	-
41	Stop Lamp Switch Input Signal	Brake Switch
42	-
43	ISG OFF Switch Input Signal	ISG switch
44	-
45	-
46	-
47	Battery Voltage Supply after Ignition Switch	Ignition Switch
48	ISG OFF Switch Indicator Control	ISG switch
49	Immobilizer Communication Line	Immobilizer Control Module [Without Smart Key]
49	Immobilizer Communication Line	Smart Key Control Module [With Smart Key]
50	-
51	-
52	Fuel Pump Relay Control Output (Without Smart Key)	Fuel Pump Relay
53	-
54	Neutral Switch Signal Input	Neutral Switch
55	Sensor Power Supply (+5V)	Manifold Absolute Pressure Sensor (MAPS)
56	Starter Relay Control Output (With Smart Key)	Starter Relay
57	C-CAN [Low]	Other Control Module, Data Link Connector (DLC),
58	C-CAN [High]	Other Control Module, Data Link Connector (DLC),
59	Sensor Ground	Crankshaft Position Sensor (CKPS)
60	Crankshaft Position Sensor (CKPS) Signal Input	Crankshaft Position Sensor (CKPS)
61	Main Relay Control Output	Main Relay
62	Cooling Fan Relay [Low] Control Output	Cooling Fan Relay [Low]
63	Generator Control Output [COM]	Generator
64	Sensor Power Supply (+5V)	Throttle Position Sensor (TPS) No. 1, 2 [ETC Module]
65	-
66	-
67	-
68	-
69	Power Ground	Ground
70	Power Ground	Ground
71	Power Ground	Ground
72	Battery Voltage Supply after Main Relay	Main Relay
73	-
74	Battery Voltage Supply after Main Relay	Main Relay

Connector [B]

Pin No.	Description	Connected To
1	Sensor Ground	Throttle Position Sensor (TPS) 1, 2
2	-
3	-
4	-
5	Sensor Ground	Air Conditioning Pressure Sensor (APT)
6	-
7	-
8	-
9	-
10	-
11	Air Conditioning Pressure Sensor (APT) Signal Input	Air Conditioning Pressure Sensor (APT)
12	Sensor Ground	Accelerator Pedal Position Sensor (APS) 2
13	-
14	-
15	-
16	Brake Switch 1 Input Signal	Stop Lamp Switch, Brake Switch
17	-
18	Accelerator Position Sensor (APS) No. 2 Signal Input	Accelerator Position Sensor (APS) No. 2
19	-
20	Sensor Ground	Accelerator Pedal Position Sensor (APS) 1
21	-
22	Sensor Ground	Camshaft Position Sensor (CMPS) [Bank 1/Intake]
23	Sensor Ground	Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
24	-
25	Sensor Power Supply (+5V)	Accelerator Position Sensor (APS) No. 2
		Air Conditioning Pressure Sensor (APT)
		Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
26	-
27	Throttle Position Sensor (TPS) No. 1 Signal Input	Throttle Position Sensor (TPS) No. 1
28	-
29	Accelerator Position Sensor (APS) No. 1 Signal Input	Accelerator Position Sensor (APS) No. 1
30	Start Switch Signal Input	Ignition Lock
31	Clutch Switch Signal Input	Clutch Switch [MT]
32	-
33	Sensor Power Supply (+5V)	Accelerator Pedal Position Sensor (APS) 1
		Crankshaft Position Sensor (CKPS) [With ISG]
		Brake Booster Vacuum Pressure Sensor (BBVPS) [With ISG]
		Camshaft Position Sensor (CMPS) [Bank 1/Intake]
34	-
35	Throttle Position Sensor (TPS) No. 2 Signal Input	Throttle Position Sensor (TPS) No. 2 [ETC Module]
36	Intake Air Temperature Sensor (IATS) Signal Input	Intake Air Temperature Sensor (IATS)
37	-
38	-
39	-
40	Variable Intake Solenoid (VIS) Valve Control Output	Variable Intake Solenoid (VIS)
41	Knock Sensor (KS) Signal Input	Knock Sensor (KS)
42	Sensor Ground	Knock Sensor (KS)
43	LIN Communication Input Signal	Battery Sensor
44	-
45	-
46	-
47	-
48	-
49	-
50	-
51	-
52	-
53	Fuel Pump Relay Control Output (With Smart Key)	Fuel Pump Relay
54	-
55	CVVT Oil Control Valve (OCV) Control Output [Bank 1/Intake]	CVVT Oil Control Valve (OCV) [Bank 1/Intake]
56	ETC Motor Control Output (+)	ETC Module
57	CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] Control Output	CVVT Oil Control Valve (OCV) [Bank 1/Exhaust]
58	ETC Motor Control Output (-)	ETC Module

Terminal [M/T] Input/Output Signal

Connector [A]

Pin No.	Description	Condition	Type	Level
1	Ignition Coil Control Output (Cylinder No. 1)	Idle	Pulse	1st Voltage: 300–400 V
1	Ignition Coil Control Output (Cylinder No. 1)	Idle	Pulse	Voltage ON: 2.0 V max.
2	Ignition Coil Control Output (Cylinder No. 4)	Idle	Pulse	1st Voltage: 300–400 V
2	Ignition Coil Control Output (Cylinder No. 4)	Idle	Pulse	Voltage ON: 2.0 V max.
3	Ignition Coil Control Output (Cylinder #2)	Idle	Pulse	1st Voltage: 300–400 V
3	Ignition Coil Control Output (Cylinder #2)	Idle	Pulse	Voltage ON: 2.0 V max.
4	Purge Control Solenoid Valve Control Output	Active	Pulse	Hi: Battery Voltage
4	Purge Control Solenoid Valve Control Output	Inactive	Pulse	LO: Max. 1.0 V
5	Ignition Coil Control Output (Cylinder #3)	Idle	Pulse	1st Voltage: 300–400 V
5	Ignition Coil Control Output (Cylinder #3)	Idle	Pulse	Voltage ON: 2.0 V max.
6	Injector Control Output (Cylinder #2)	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 1.0 V
				Vpeak: Max. 80 V
7	Injector Control Output (Cylinder No. 1)	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 1.0 V
				Vpeak: Max. 80 V
8	Heated Oxygen Sensor (Bank 1 / Sensor 2) Heater Control Output	Engine running	Pulse	Hi: Battery Voltage
8		Engine running	Pulse	LO: Max. 1.0 V
9	Injector Control Output (Cylinder #4)	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 1.0 V
				Vpeak: Max. 80 V
10	Heated Oxygen Sensor [Bank 1/Sensor 1] Heater Control Output	Engine running	Pulse	Hi: Battery Voltage
10		Engine running	Pulse	LO: Max. 1.0 V
11	-
12	-
13	Camshaft Position Sensor Input Signal [Bank 1 / Exhaust]	Idle	Pulse	Hi: Battery Voltage
13	Camshaft Position Sensor Input Signal [Bank 1 / Exhaust]	Idle	Pulse	LO: Max. 0.5 V
14	-
15	Sensor Ground	Idle	DC	Max. 50 mV
16	-
17	Sensor Ground	Idle	DC	Max. 50 mV
18	Sensor Ground	Idle	DC	Max. 50 mV
19	-
20	Cooling Fan Relay [High] Control Output	Relay OFF	DC	Battery Voltage
20	Cooling Fan Relay [High] Control Output	Relay ON	DC	Max. 1.0 V
21	Engine Speed Output Signal	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 0.5 V
				Frequency: 20–26 Hz
22	-
23	Camshaft Position Sensor Signal Input [Bank 1 / Intake]	Idle	Pulse	Hi: Battery Voltage
23	Camshaft Position Sensor Signal Input [Bank 1 / Intake]	Idle	Pulse	LO: Max. 0.5 V
24	Brake Booster Vacuum Sensor Signal Input
25	-
26	Engine Coolant Temperature Sensor Input Signal	Idle	Analog	0.5 - 4.5 V
27	Manifold Absolute Pressure Sensor Signal Input	Idle	Analog	0.8 - 1.6 V
28	Sensor Ground	Racing	Analog	Rich: 0.6–1.0 V
28	Sensor Ground	Racing	Analog	Ground: Max. 0.4 V
29	Vehicle Speed Signal Input	Idle	Pulse	Hi: Min. 4.5 V
		Idle		LO: Max. 1.0 V
		Starting the Vehicle		Hi: Min. 4.5 V
		(30 km)		LO: Max. 1.0 V
30	-
31	Electrical Load Signal Input (Defrost)
32	Generator Signal Input [FR]
33	Heated Oxygen Sensor Input Signal (Bank 1 / Sensor 2)	Racing	Analog	Rich: 0.6–1.0 V
33	Heated Oxygen Sensor Input Signal (Bank 1 / Sensor 2)	Racing	Analog	Ground: Max. 0.4 V
34	Sensor Ground	Idle	DC	Max. 50 mV
35	-
36	Heated Oxygen Sensor Signal Input (Bank 1 / Sensor 1)	Racing	Analog	Rich: 0.6–1.0 V
36	Heated Oxygen Sensor Signal Input (Bank 1 / Sensor 1)	Racing	Analog	Ground: Max. 0.4 V
37	-
38	Injector Control Output (Cylinder No. 1)	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 1.0 V
				Vpeak: Max. 80 V
39	-
40	-
41	Stop Lamp Switch Input Signal	On	DC	Battery Voltage
41	Stop Lamp Switch Input Signal	Turn Off	DC	Max. 1.0 V
42	-
43	ISG OFF Switch Input Signal
44	-
45	-
46	-
47	Battery Voltage Supply after Ignition Switch	IG OFF	DC	Max. 1.0 V
47	Battery Voltage Supply after Ignition Switch	IGNITION ON	DC	Battery Voltage
48	ISG OFF Switch Indicator Control		48	ISG OFF Switch Indicator Control
49	Immobilizer Communication Line	During Communication after IG ON	Pulse	Hi: Min. 8.5 V
49	Immobilizer Communication Line	During Communication after IG ON	Pulse	Low: 3.5 V max.
50	-
51	-
52	Fuel Pump Relay Control Output (Without Smart Key)
53	-
54	-
55	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
55	Sensor Power Supply (+5V)	IGNITION ON	DC	4.9 - 5.1 V
56	Starter Relay Control Output (With Smart Key)	Relay OFF	DC	Battery Voltage
56	Starter Relay Control Output (With Smart Key)	Relay ON	DC	Max. 1.0 V
57	C-CAN [LOW]	RECESSIVE	Pulse	2.0–3.0 V
57	C-CAN [LOW]	DOMINANT	Pulse	0.5 - 2.25 V
58	C-CAN [HIGH]	RECESSIVE	Pulse	2.0–3.0 V
58	C-CAN [HIGH]	DOMINANT	Pulse	2.75 - 4.5 V
59	Sensor Ground	Idle	DC	Max. 50 mV
60	Crankshaft Position Sensor Input Signal	Idle	SINE	Vp_p: Min. 1.0 V
60	Crankshaft Position Sensor Input Signal	Idle	Wave	Vp_p: Min. 1.0 V
61	Main Relay Control Output	Relay OFF	DC	Battery Voltage
61	Main Relay Control Output	Relay ON	DC	Max. 1.0 V
62	Cooling Fan Relay [Low] Control Output	Relay OFF	DC	Battery Voltage
62	Cooling Fan Relay [Low] Control Output	Relay ON	DC	Max. 1.0 V
63	Generator Control Output [COM]
64	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
64	Sensor Power Supply (+5V)	IGNITION ON	DC	4.9 - 5.1 V
65	-
66	-
67	-
68	-
69	Power Ground	Idle	DC	Max. 50 mV
70	Power Ground	Idle	DC	Max. 50 mV
71	Power Ground	Idle	DC	Max. 50 mV
72	Battery Voltage Supply after Main Relay	IG OFF	DC	Max. 1.0 V
72	Battery Voltage Supply after Main Relay	IGNITION ON	DC	Battery Voltage
73	-
74	Battery Voltage Supply after Main Relay	IG OFF	DC Voltage	Max. 1.0 V
74	Battery Voltage Supply after Main Relay	IGNITION ON	DC Voltage	Battery Voltage

Connector [B]

Pin No.	Description	Condition	Type	Level
1	Sensor Ground	Idle	DC	Max. 50 mV
2	-
3	-
4	-
5	Sensor Ground	Idle	DC	Max. 50 mV
6	-
7	-
8	-
9	-
10	-
11	Air Conditioning Pressure Sensor (APT) Signal Input	A/C ON	Analog	Max. 4.8 V
12	Sensor Ground	Idle	DC	Max. 50 mV
13	-
14	-
15	-
16	Brake Switch 1 Input Signal	Brake ON	DC	Battery Voltage
16	Brake Switch 1 Input Signal	Brake Off	DC	Max. 1.0 V
17	-
18	Accelerator Position Sensor (APS) No. 2 Signal Input	THA	Analog	0.2 - 0.7 V
18	Accelerator Position Sensor (APS) No. 2 Signal Input	THW	Analog	1.2 - 2.4 V
19	-
20	Sensor Ground	Idle	DC	Max. 50 mV
21	-
22	Sensor Ground	Idle	DC	Max. 50 mV
23	Sensor Ground	Idle	DC	Max. 50 mV
24	-
25	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
25	Sensor Power Supply (+5V)	IGNITION ON	DC	4.8 - 5.2 V
26	-
27	Throttle Position Sensor (TPS) No. 1 Signal Input	THA	Analog	0.3 - 0.9 V
27	Throttle Position Sensor (TPS) No. 1 Signal Input	THW	Analog	1.5 - 3.0 V
28	-
29	Accelerator Position Sensor (APS) No. 1 Signal Input	THA	Analog	0.2 - 0.7 V
29	Accelerator Position Sensor (APS) No. 1 Signal Input	THW	Analog	1.2 - 2.4 V
30	Start Switch Signal Input
31	Clutch Switch Signal Input
32	-
33	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
33	Sensor Power Supply (+5V)	IGNITION ON	DC	4.8 - 5.2 V
34	-
35	Throttle Position Sensor (TPS) No. 2 Signal Input	THA	Analog	4.2 - 5.0 V
35	Throttle Position Sensor (TPS) No. 2 Signal Input	THW	Analog	3.3–3.8 V
36	Intake Air Temperature Sensor Signal Input	Idle	DC	0 - 5 V
37	-
38	-
39	-
40	Variable Intake Solenoid (VIS) Valve Control Output	Relay OFF	DC Voltage	Battery Voltage
40	Variable Intake Solenoid (VIS) Valve Control Output	Relay ON	DC Voltage	Max. 1.65 V
41	Knock Sensor (KS) Signal Input	Knock	Variable
41	Knock Sensor (KS) Signal Input	Normal	Frequency
42	Sensor Ground	Idle	DC Voltage	Max. 50 mV
43	LIN Communication Input Signal
43	LIN Communication Input Signal
44	-
45	-
46	-
47	-
48	-
49	-
50	-
51	-
52	-
53	Fuel Pump Relay Control Output (With Smart Key)	Relay OFF	DC	Battery Voltage
53	Fuel Pump Relay Control Output (With Smart Key)	Relay ON	DC	Max. 1.0 V
54	-
55	CVVT Oil Control Valve Control Output [Bank 1 / Intake]	Idle	Pulse	Hi: Battery Voltage
55	CVVT Oil Control Valve Control Output [Bank 1 / Intake]	Idle	Pulse	LO: Max. 1.0 V
56	ETC Motor Control Output (+)	Idle	Pulse	Hi: Battery Voltage
56	ETC Motor Control Output (+)	Idle	Pulse	LO: Max. 1.0 V
57	CVVT Oil Control Valve Control Output [Bank 1 / Exhaust]	Idle	Pulse	Hi: Battery Voltage
57	CVVT Oil Control Valve Control Output [Bank 1 / Exhaust]	Idle	Pulse	LO: Max. 1.0 V
58	ETC Motor Control Output (-)	Idle	Pulse	Hi: Battery Voltage
58	ETC Motor Control Output (-)	Idle	Pulse	LO: Max. 1.0 V

Terminal Function [A/T]

Connector [A]

Pin No.	Description	Connected To
1	CVVT Oil Control Valve (OCV) Control Output [Bank 1/Intake]	CVVT Oil Control Valve (OCV) [Bank 1/Intake]
2	CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] Control Output	CVVT Oil Control Valve (OCV) [Bank 1/Exhaust]
3	-
4	-
5	-
6	-
7	-
8	-
9	Sensor Ground	Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
10	Sensor Ground	Camshaft Position Sensor (CMPS) [Bank 1/Intake]
11	-
12	-
13	-
14	Sensor Ground	Engine Coolant Temperature Sensor (ECTS)
15	-
16	-
17	-
18	-
19	Sensor Ground	Accelerator Pedal Position Sensor (APS) 1
20	-
21	Sensor Ground	Throttle Position Sensor (TPS) 1, 2
22	-
23	Fuel Pump Relay Control Output (With Smart Key)	Fuel Pump Relay
24
25	ETC Motor Control Output (-)	ETC Module
26	Variable Intake Solenoid (VIS) Valve Control Output	Variable Intake Solenoid (VIS)
27	-
28	-
29	-
30	-
31	-
32	-
33	-
34	-
35	-
36	-
37	Accelerator Position Sensor (APS) No. 1 Signal Input	Accelerator Position Sensor (APS) No. 1
38	Manifold Absolute Pressure Sensor (MAPS) Signal Input	Manifold Absolute Pressure Sensor (MAPS)
39	Engine Coolant Temperature Sensor (ECTS) Signal Input	Engine Coolant Temperature Sensor (ECTS)
40	-
41	-
42	Sensor Ground	Accelerator Pedal Position Sensor (APS) 2
43	-
44	-
45	-
46	-
47	-
48	-
49	-
50	-
51	-
52	-
53	-
54	-
55	-
56	-
57	-
58	-
59	-
60	Brake Booster Vacuum Sensor Signal Input	Brake Booster Vacuum Pressure Sensor (BBVPS) [With ISG]
61	-
62	-
63	-
64	-
65	-
66	-
67	-
68	-
69	-
70	-
71	-
72	-
73	-
74	-
75	Battery Voltage Supply after Ignition Switch	Ignition Switch
76	-
77	-
78	-
79	-
80	-
81	-
82	-
83	-
84	-
85	-
86	ETC Motor Control Output (+)	ETC Module
87	-
88	Starter Relay Control Output (With Smart Key)	Starter Relay
89	-
90	-
91	-
92	-
93	-
94	-
95	-
96	-
97	-
98	-
99	-
100	-
101	-
102	-
103	-
104	-
105	-

Connector [K]

Pin No.	Description	Connected To
1	Power Ground	Ground
2	Power Ground	Ground
3	Battery Voltage Supply after Main Relay	Main Relay
4	Power Ground	Ground
5	Battery Voltage Supply after Main Relay	Main Relay
6	-
7	-
8	-
9	Sensor Ground	Air Conditioning Pressure Sensor (APT)
10	-
11	-
12	Sensor Ground	Brake Booster Vacuum Pressure Sensor (BBVPS) [With ISG]
13	Sensor Ground	Manifold Absolute Pressure Sensor (MAPS)
14	-
15	Sensor Power Supply (+5V)	Accelerator Position Sensor (APS) No. 2
15	Sensor Power Supply (+5V)	Air Conditioning Pressure Sensor (APT)
16	Sensor Power Supply (+5V)	Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
16	Sensor Power Supply (+5V)	Manifold Absolute Pressure Sensor (MAPS)
17	Sensor Power Supply (+5V)	Throttle Position Sensor (TPS) No. 1, 2 [ETC Module]
18	Sensor Power Supply (+5V)	Accelerator Pedal Position Sensor (APS) 1
		Crankshaft Position Sensor (CKPS) [With ISG]
		Brake Booster Vacuum Pressure Sensor (BBVPS) [With ISG]
		Camshaft Position Sensor (CMPS) [Bank 1/Intake]
19	ISG OFF Switch Indicator Control	ISG switch
20	Cooling Fan Relay [High] Control Output	Radiator Cooling Fan Relay [High Speed]
21	Purge Control Solenoid Valve Control Output	Purge Control Solenoid Valve (PCSV)
22	Heated Oxygen Sensor [Bank 1/Sensor 2] Heater Control Output	Heated Oxygen Sensor [Bank 1/Sensor 2]
23	Ignition Coil Control Output (Cylinder No. 4)	Ignition Coil (Cylinder No. 4)
24	Air Conditioning Pressure Sensor (APT) Signal Input	Air Conditioning Pressure Sensor (APT)
25	Throttle Position Sensor (TPS) No. 1 Signal Input	Throttle Position Sensor (TPS) No. 1
26	-
27	-
28	-
29	-
30	-
31	-
32	-
33	Sensor Ground	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
34	-
35	-
36	-
37	-
38	-
39	Heated Oxygen Sensor [Bank 1/Sensor 1] Heater Control Output	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
40	Ignition Coil Control Output (Cylinder #3)	Ignition Coil (Cylinder No. 3)
41	Throttle Position Sensor (TPS) No. 2 Signal Input	Throttle Position Sensor (TPS) No. 2 [ETC Module]
42	Intake Air Temperature Sensor (IATS) Signal Input	Intake Air Temperature Sensor (IATS)
43	-
44	-
45	Vehicle Speed Signal Input	ABS/ESP Control Module [with ABS/ESP]
46	-
47	Stop Lamp Switch Input Signal	Brake Switch
48	ISG OFF Switch Input Signal	ISG switch
49	Generator Signal Input [FR]	Generator
50	Heated Oxygen Sensor Input Signal [Bank 1/Sensor 2]	Heated Oxygen Sensor [Bank 1/Sensor 2]
51	Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] Signal Input	Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
52	-
53	-
54	-
55	Main Relay Control Output	Main Relay
56	Injector Control Output (Cylinder #3)	Injector (Cylinder #3)
57	Ignition Coil Control Output (Cylinder No. 1)	Ignition Coil (Cylinder No. 1)
58	Knock Sensor (KS) Signal Input	Knock Sensor (KS)
59	-
60	Electrical Load Signal Input (Defrost)	A/C Control Module, Outside Mirror
61	-
62	Accelerator Position Sensor (APS) No. 2 Signal Input	Accelerator Position Sensor (APS) No. 2
63	Sensor Ground	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
64	-
65	Heated Oxygen Sensor Signal Input [Bank 1/Sensor 1]	Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
66	-
67	Start Switch Signal Input	Ignition Lock
68	-
69	Brake Switch 1 Input Signal	Stop Lamp Switch, Brake Switch
70	Cooling Fan Relay [Low] Control Output	Cooling Fan Relay [Low]
71	Fuel Pump Relay Control Output (Without Smart Key)	Fuel Pump Relay
72	Generator Control Output [COM]	Generator
73	Injector Control Output (Cylinder #2)	Injector (Cylinder #2)
74	Ignition Coil Control Output (Cylinder #2)	Ignition Coil (Cylinder No. 2)
75	Sensor Ground	Knock Sensor (KS)
76	-
77	Camshaft Position Sensor (CMPS) [Bank 1/Intake] Signal Input	Camshaft Position Sensor (CMPS) [Bank 1/Intake]
78	-
79	-
80	Immobilizer Communication Line	Immobilizer Control Module [Without Smart Key]
80	Immobilizer Communication Line	Smart Key Control Module [With Smart Key]
81	LIN Communication Input Signal	Battery Sensor
82	-
83	-
84	C-CAN [High]	Other Control Module, Data Link Connector (DLC),
85	C-CAN [Low]	Other Control Module, Data Link Connector (DLC),
86	Sensor Ground	Crankshaft Position Sensor (CKPS)
87	Crankshaft Position Sensor (CKPS) Signal Input	Crankshaft Position Sensor (CKPS)
88	-
89	Engine Speed Signal Output	Smart Key Control Module
90	Injector Control Output (Cylinder #4)	Injector (Cylinder No. 4)
91	Injector Control Output (Cylinder No. 1)	Injector (Cylinder No. 1)

Terminal [A/T] Input/Output Signal

Connector [A]

Pin No.	Description	Condition	Type	Level
1	CVVT Oil Control Valve Control Output [Bank 1 / Intake]	Idle	Pulse	Hi: Battery Voltage
1	CVVT Oil Control Valve Control Output [Bank 1 / Intake]	Idle	Pulse	LO: Max. 1.0 V
2	CVVT Oil Control Valve Control Output [Bank 1 / Exhaust]	Idle	Pulse	Hi: Battery Voltage
2	CVVT Oil Control Valve Control Output [Bank 1 / Exhaust]	Idle	Pulse	LO: Max. 1.0 V
3
4
5
6
7
8
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
17
18
19	Sensor Ground	Idle	DC	Max. 50 mV
20
21	Sensor Ground	Idle	DC	Max. 50 mV
22
23	Fuel Pump Relay Control Output (With Smart Key)	Relay OFF	DC	Battery Voltage
23	Fuel Pump Relay Control Output (With Smart Key)	Relay ON	DC	Max. 1.0 V
24
25	ETC Motor Control Output (-)	Idle	Pulse	Hi: Battery Voltage
25	ETC Motor Control Output (-)	Idle	Pulse	LO: Max. 1.0 V
26	Variable Intake Solenoid (VIS) Valve Control Output	Relay OFF	DC Voltage	Battery Voltage
26	Variable Intake Solenoid (VIS) Valve Control Output	Relay ON	DC Voltage	Max. 1.65 V
27
28
29
30
31
32
33
34
35
36
37	Accelerator Position Sensor (APS) No. 1 Signal Input	THA	Analog	0.2 - 0.7 V
37	Accelerator Position Sensor (APS) No. 1 Signal Input	THW	Analog	1.2 - 2.4 V
38	Manifold Absolute Pressure Sensor Signal Input	Idle	Analog	0.8 - 1.6 V
39	Engine Coolant Temperature Sensor Input Signal	Idle	Analog	0.5 - 4.5 V
40
41
42	Sensor Ground	Idle	DC	Max. 50 mV
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60	Brake Booster Vacuum Sensor Signal Input
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75	Battery Voltage Supply after Ignition Switch	IG OFF	DC	Max. 1.0 V
75	Battery Voltage Supply after Ignition Switch	IGNITION ON	DC	Battery Voltage
76
77
78
79
80
81
82
83
84
85
86	ETC Motor Control Output (+)	Idle	Pulse	Hi: Battery Voltage
86	ETC Motor Control Output (+)	Idle	Pulse	LO: Max. 1.0 V
88	Starter Relay Control Output (With Smart Key)	Relay OFF	DC	Battery Voltage
88	Starter Relay Control Output (With Smart Key)	Relay ON	DC	Max. 1.0 V

Connector [K]

Pin No.	Description	Condition	Type	Level
1	Power Ground	Idle	DC	Max. 50 mV
2	Power Ground	Idle	DC	Max. 50 mV
3	Battery Voltage Supply after Main Relay	IG OFF	DC	Max. 1.0 V
3	Battery Voltage Supply after Main Relay	IGNITION ON	DC	Battery Voltage
4	Power Ground	Idle	DC	Max. 50 mV
5	Battery Voltage Supply after Main Relay	IG OFF	DC Voltage	Max. 1.0 V
5	Battery Voltage Supply after Main Relay	IGNITION ON	DC Voltage	Battery Voltage
6
7
8
9	Sensor Ground	Idle	DC	Max. 50 mV
10
11
12	Sensor Ground	Idle	DC	Max. 50 mV
13	Sensor Ground	Idle	DC	Max. 50 mV
14
15	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
15	Sensor Power Supply (+5V)	IGNITION ON	DC	4.8 - 5.2 V
16	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
16	Sensor Power Supply (+5V)	IGNITION ON	DC	4.8 - 5.2 V
17	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
17	Sensor Power Supply (+5V)	IGNITION ON	DC	4.9 - 5.1 V
18	Sensor Power Supply (+5V)	IG OFF	DC	Max. 0.5 V
18	Sensor Power Supply (+5V)	IGNITION ON	DC	4.8 - 5.2 V
19	ISG OFF Switch Indicator Control
20	Cooling Fan Relay [High] Control Output	Relay OFF	DC	Battery Voltage
20	Cooling Fan Relay [High] Control Output	Relay ON	DC	Max. 1.0 V
21	Purge Control Solenoid Valve Control Output	Active	Pulse	Hi: Battery Voltage
21	Purge Control Solenoid Valve Control Output	Inactive	Pulse	LO: Max. 1.0 V
22	Heated Oxygen Sensor (Bank 1 / Sensor 2) Heater Control Output	Engine running	Pulse	Hi: Battery Voltage
22		Engine running	Pulse	LO: Max. 1.0 V
23	Ignition Coil Control Output (Cylinder No. 4)	Idle	Pulse	1st Voltage: 300–400 V
23	Ignition Coil Control Output (Cylinder No. 4)	Idle	Pulse	Voltage ON: 2.0 V max.
24	Air Conditioning Pressure Sensor (APT) Signal Input	A/C ON	Analog	Max. 4.8 V
25	Throttle Position Sensor (TPS) No. 1 Signal Input	THA	Analog	0.3 - 0.9 V
25	Throttle Position Sensor (TPS) No. 1 Signal Input	THW	Analog	1.5 - 3.0 V
26
27
28
29
30
31
32
33	Sensor Ground	Racing	Analog	Rich: 0.6–1.0 V
33	Sensor Ground	Racing	Analog	Ground: Max. 0.4 V
34
35
36
37
38
39	Heated Oxygen Sensor [Bank 1/Sensor 1] Heater Control Output	Engine running	Pulse	Hi: Battery Voltage
39		Engine running	Pulse	LO: Max. 1.0 V
40	Ignition Coil Control Output (Cylinder #3)	Idle	Pulse	1st Voltage: 300–400 V
40	Ignition Coil Control Output (Cylinder #3)	Idle	Pulse	Voltage ON: 2.0 V max.
41	Throttle Position Sensor (TPS) No. 2 Signal Input	THA	Analog	4.2 - 5.0 V
41	Throttle Position Sensor (TPS) No. 2 Signal Input	THW	Analog	3.3–3.8 V
42	Intake Air Temperature Sensor Signal Input	Idle	DC	0 - 5 V
43
44
45	Vehicle Speed Signal Input	Idle	Pulse	Hi: Min. 4.5 V
		Idle		LO: Max. 1.0 V
		Starting the Vehicle		Hi: Min. 4.5 V
		(30 km)		LO: Max. 1.0 V
46
47	Stop Lamp Switch Input Signal	On	DC	Battery Voltage
47	Stop Lamp Switch Input Signal	Turn Off	DC	Max. 1.0 V
48	ISG OFF Switch Input Signal
49	Generator Signal Input [FR]
50	Heated Oxygen Sensor Input Signal (Bank 1 / Sensor 2)	Racing	Analog	Rich: 0.6–1.0 V
50	Heated Oxygen Sensor Input Signal (Bank 1 / Sensor 2)	Racing	Analog	Ground: Max. 0.4 V
51	Camshaft Position Sensor Input Signal [Bank 1 / Exhaust]	Idle	Pulse	Hi: Battery Voltage
51	Camshaft Position Sensor Input Signal [Bank 1 / Exhaust]	Idle	Pulse	LO: Max. 0.5 V
52
53
54
55	Main Relay Control Output	Relay OFF	DC	Battery Voltage
55	Main Relay Control Output	Relay ON	DC	Max. 1.0 V
56	Injector Control Output (Cylinder No. 1)	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 1.0 V
				Vpeak: Max. 80 V
57	Ignition Coil Control Output (Cylinder No. 1)	Idle	Pulse	1st Voltage: 300–400 V
57	Ignition Coil Control Output (Cylinder No. 1)	Idle	Pulse	Voltage ON: 2.0 V max.
58	Knock Sensor (KS) Signal Input	Knock	Variable
58	Knock Sensor (KS) Signal Input	Normal	Frequency
59
60	Electrical Load Signal Input (Defrost)
61
62	Accelerator Position Sensor (APS) No. 2 Signal Input	THA	Analog	0.2 - 0.7 V
62	Accelerator Position Sensor (APS) No. 2 Signal Input	THW	Analog	1.2 - 2.4 V
63	Sensor Ground	Idle	DC	Max. 50 mV
64
65	Heated Oxygen Sensor Signal Input (Bank 1 / Sensor 1)	Racing	Analog	Rich: 0.6–1.0 V
65	Heated Oxygen Sensor Signal Input (Bank 1 / Sensor 1)	Racing	Analog	Ground: Max. 0.4 V
66
67	Start Switch Signal Input
68
69	Brake Switch 1 Input Signal	Brake ON	DC	Battery Voltage
69	Brake Switch 1 Input Signal	Brake Off	DC	Max. 1.0 V
70	Cooling Fan Relay [Low] Control Output	Relay OFF	DC	Battery Voltage
70	Cooling Fan Relay [Low] Control Output	Relay ON	DC	Max. 1.0 V
71	Fuel Pump Relay Control Output (Without Smart Key)
72	Generator Control Output [COM]
73	Injector Control Output (Cylinder #2)	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 1.0 V
				Vpeak: Max. 80 V
74	Ignition Coil Control Output (Cylinder #2)	Idle	Pulse	1st Voltage: 300–400 V
74	Ignition Coil Control Output (Cylinder #2)	Idle	Pulse	Voltage ON: 2.0 V max.
75	Sensor Ground	Idle	DC Voltage	Max. 50 mV
76
77	Camshaft Position Sensor Signal Input [Bank 1 / Intake]	Idle	Pulse	Hi: Battery Voltage
77	Camshaft Position Sensor Signal Input [Bank 1 / Intake]	Idle	Pulse	LO: Max. 0.5 V
78
79
80	Immobilizer Communication Line	During Communication after IG ON	Pulse	Hi: Min. 8.5 V
80	Immobilizer Communication Line	During Communication after IG ON	Pulse	Low: 3.5 V max.
81	LIN Communication Input Signal
81	LIN Communication Input Signal
82
83
84	C-CAN [HIGH]	RECESSIVE	Pulse	2.0–3.0 V
84	C-CAN [HIGH]	DOMINANT	Pulse	2.75 - 4.5 V
85	C-CAN [LOW]	RECESSIVE	Pulse	2.0–3.0 V
85	C-CAN [LOW]	DOMINANT	Pulse	0.5 - 2.25 V
86	Sensor Ground	Idle	DC	Max. 50 mV
87	Crankshaft Position Sensor Input Signal	Idle	SINE	Vp_p: Min. 1.0 V
87	Crankshaft Position Sensor Input Signal	Idle	Wave	Vp_p: Min. 1.0 V
88
89	Engine Speed Output Signal	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 0.5 V
				Frequency: 20–26 Hz
90	Injector Control Output (Cylinder #4)	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 1.0 V
				Vpeak: Max. 80 V
91	Injector Control Output (Cylinder No. 1)	Idle	Pulse	Hi: Battery Voltage
				LO: Max. 1.0 V
				Vpeak: Max. 80 V

Repair Procedures

Removal

1
Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
2
Remove the battery.

(Refer to Engine Electrical System - Battery)
3
Disconnect the ECM connector (A).
4
Remove the mounting bolts (B) and nut (C), then remove the ECM module bracket assembly (D).

ECM bracket mounting bolt/nut:

9,8–11.8 N·m
5
Remove the ECM (B) by loosening the mounting nuts (A) on the bracket.

ECM Mounting Nuts: 0.9–0.9 N·m

Installation

Install in the reverse order of removal.

ECM Circuit Inspection Procedure

1
ECM GROUND CIRCUIT INSPECTION: Measure the resistance between the ECM and the chassis ground, using the rear side of the ECM harness connector as the ECM-side check point. If a problem is found, repair it.

Specification: Below 1 Ω
2
ECM CONNECTOR INSPECTION: Disconnect the ECM connector and visually inspect the ground terminals on the ECM side and the harness side for bent pins or poor contact pressure. If a problem is found, repair it.
3
If no problem is found in Steps 1 and 2, the ECM may be faulty. Before replacing the ECM with a new one, make sure there are no DTCs, then re-check the vehicle. If DTCs are present, troubleshoot them first before replacing the ECM.
4
RECHECK ORIGINAL ECM: Install the original ECM (may be faulty) into a known good vehicle and check the vehicle. If the problem recurs, replace the original ECM with a new one. If the problem does not occur, it is an intermittent problem.

(Refer to Intermittent Problem Check Procedure in Basic Inspection Procedure).

Adjustment

ECM Neutral Mode Procedure

After replacing the ECM on a vehicle with an immobilizer system, the following procedure must be performed.

[When Installing Used ECM]

1
Perform the ECM Neutral Mode procedure using KDS/GDS.

(Refer to "Body Electrical System - Immobilizer System - Repair Procedures")
2
After completing the ECM Neutral Mode, perform the Key Learning procedure using KDS/GDS.

(Refer to "Body Electrical System - Immobilizer System - Repair Procedures")

[When Installing New ECM]

Perform the Key Learning procedure using KDS/GDS.

(Refer to "Body Electrical System - Immobilizer System - Repair Procedures")

After replacing the ECM on a vehicle with a smart key system (push button start), the following procedure must be performed.

[When Installing Used ECM]

1
Perform the ECM Neutral Mode procedure using KDS/GDS.

(Refer to Body Electrical System - Smart Key - Repair Procedures)
2
After completing "ECM Neutral Mode", turn the ignition on, then off, using the smart key or start button. The ECM will then automatically receive the smart key information.

[When Installing New ECM]

Turn the ignition on, then off, using the smart key or start button. The ECM will then automatically receive the smart key information.

ETC Module Learning Procedure

Perform the ETC module learning procedure after replacing the ETC module.

(Refer to Engine Control System - ETC (Electronic Throttle Control) System)

Engine Control Module (ECM)

Circuit Diagrams

Engine Control Module (ECM)

Harness Connector

Terminal Function [M/T]

Terminal [M/T] Input/Output Signal

Terminal Function [A/T]

Terminal [A/T] Input/Output Signal

Repair Procedures

Removal

ECM Mounting Nuts: 0.9–0.9 N·m

Installation

ECM Circuit Inspection Procedure

Specification: Below 1 Ω

Adjustment

ECM Neutral Mode Procedure

Test yourself