Engine Control System: Other — Hyundai Accent III (2006-2011)

3. OBD-II system readiness tests

Catalyst monitoring The catalyst efficiency monitor is a self-test strategy within the ECM or PCM that uses the downstream Heated Oxygen Sensor (HO2S) to determine when a catalyst has fallen below the minimum level of effectiveness in its ability to control exhaust emission.
Misfire monitoring Misfire is defined as the lack of proper combustion in the cylinder due to the absence of spark, poor fuel metering, or poor compression. Any combustion that does not occur within the cylinder at the proper time is also a misfire. The misfire detection monitor detects fuel, ignition or mechanically induced misfires. The intent is to protect the catalyst from permanent damage and to alert the customer of an emission failure or an inspection maintenance failure by illuminating the MIL. When a misfire is detected, special software called freeze frame data is enabled. The freeze frame data captures the operational state of the vehicle when a fault is detected from misfire detection monitor strategy.
Fuel system monitoring The fuel system monitor is a self-test strategy within the ECM or PCM that monitors the adaptive fuel table The fuel control system uses the adaptive fuel table to compensate for normal variability of the fuel system components caused by wear or aging. During normal vehicle operation, if the fuel system appears biased lean or rich, the adaptive value table will shift the fuel delivery calculations to remove bias.
Engine cooling system monitoring The cooling system monitoring is a self-test strategy within the ECM or PCM that monitors ECTS (Engine Coolant Temperature Sensor) and thermostat about circuit continuity, output range, rationality faults.
O2 sensor monitoring OBD-II regulations require monitoring of the upstream Heated O2 Sensor (H2OS) to detect if the deterioration of the sensor has exceeded thresholds. An additional HO2S is located downstream of the Warm-Up Three Way Catalytic Converter (WU-TWC) to determine the efficiency of the catalyst. Although the downstream H2OS is similar to the type used for fuel control, it functions differently. The downstream HO2S is monitored to determine if a voltage is generated. That voltage is compared to a calibrated acceptable range.
Evaporative emission system monitoring The EVAP. monitoring is a self-test strategy within the ECM or PCM that tests the integrity of the EVAP. system. The complete evaporative system detects a leak or leaks that cumulatively are greater than or equal to a leak caused by a 0.040 inch and 0.020 inch diameter orifice.
Air conditioning system monitoring The A/C system monitoring is a self-test strategy within the ECM or PCM that monitors malfunction of all A/C system components at A/C ON.
Comprehensive components monitoring The comprehensive components monitoring is a self-test strategy within the ECM or PCM that detects fault of any electronic powertrain components or system that provides input to the ECM or PCM and is not exclusively an input to any other OBD-II monitor.
A/C system component monitoring

Requirement

If a vehicle incorporates an engine control strategy that alters off idle fuel and/or spark control when the A/C system is on, the OBD II system shall monitor all electronic air conditioning system components for malfunctions that cause the system to fail to invoke the alternate control while the A/C system is on or cause the system to invoke the alternate control while the A/C system is off.

Additionally, the OBD II system shall monitor for malfunction all electronic air conditioning system components that are used as part of the diagnostic strategy for any other monitored system or component.

Implementation plan

No engine control strategy incorporated that alters off idle fuel and/or spark control when A/C system is on. Malfunction of A/C system components is not used as a part of the diagnostic strategy for other monitored system or component.

Scheme 45

Scheme 45: Components Location

Scheme 46

Scheme 47

Scheme 48

ECM Terminal And Input/Output signal

ECM Harness Connector (A/T)

Scheme 49

Scheme 49: ECM Terminal And Input/Output signal

ECM Terminal Function (A/T)

Connector [C01-1]

Pin No.	Description	Connected to
1	Power Ground	Chassis Ground
2	Power Ground	Chassis Ground
3	Power Ground	Chassis Ground
4	For Autotransaxle Control
5	For Autotransaxle Control
6	Battery voltage supply after main relay	Main Relay
7
8	Sensor ground	Manifold Absolute Pressure Sensor (MAPS)
9	Sensor ground	Heated Oxygen Sensor (Sensor 2)
10	Manifold Absolute Pressure Sensor signal input	Manifold Absolute Pressure Sensor (MAPS)
11
12
13	Heated Oxygen Sensor (Sensor 2) signal input	Heated Oxygen Sensor (Sensor 2)
14
15
16
17	Electric Load (Defrost) signal input
18
19
20	Vehicle speed signal input	ABS Control Module [With ABS]
21
22	Electric Load (Head Lamp) signal input
23	A/C Switch "ON" signal input	A/C Switch
24	Power Ground	Chassis Ground
25	Power Ground	Chassis Ground
26	For Autotransaxle Control
27	For Autotransaxle Control
28
29	Sensor ground	Fuel Tank Pressure Sensor (FTPS)
30	Sensor ground	A/C Pressure Transducer (APT)
31	Sensor ground	Heated Oxygen Sensor (Sensor 1)
32	Intake Air Temperature Sensor signal input	Intake Air Temperature Sensor (IATS)
33
34
35	Heated Oxygen Sensor (Sensor 1) signal input	Heated Oxygen Sensor (Sensor 1)
36
37
38	Sensor ground	Camshaft Position Sensor (CMPS)
39
40
41	Camshaft Position Sensor signal input	Camshaft Position Sensor (CMPS)
42
43
44	Power Steering Switch signal input	Power Steering Switch
45
46	A/C thermal switch signal input	A/C Thermal Switch
47	Power (+5 V)	Auto Cruise Unit
48	For Autotransaxle Control
49
50	For Autotransaxle Control
51	Sensor ground	Throttle Position Sensor (TPS)
52
53	Fuel Level Sensor signal input	Fuel Level Sensor (FLS)
54
55
56
57	For Autotransaxle Control
58
59
60	For Autotransaxle Control
61	For Autotransaxle Control
62	For Autotransaxle Control
63	For Autotransaxle Control
64	Cruise "SET" Lamp control output	Cluster (Cruise "SET" Lamp)
65	Cruise Control signal output	Auto Cruise Unit
66	For Autotransaxle Control
67	For Autotransaxle Control
68	For Autotransaxle Control
69
70	For Autotransaxle Control
71	For Autotransaxle Control
72	For Autotransaxle Control
73	Sensor ground	Engine Coolant Temperature Sensor (ECTS)
74
75	Throttle Position Sensor signal input	Throttle Position Sensor (TPS)
76
77	Engine Coolant Temperature Sensor signal input	Engine Coolant Temperature Sensor (ECTS)
78
79	A/C Pressure Transducer signal input	A/C Pressure Transducer (APT)
80	For Autotransaxle Control
81	For Autotransaxle Control
82	For Autotransaxle Control
83	For Autotransaxle Control
84	For Autotransaxle Control
85
86
87	For Autotransaxle Control
88	For Autotransaxle Control
89	For Autotransaxle Control
90	For Autotransaxle Control
91	For Autotransaxle Control
92	For Autotransaxle Control
93
94	For Autotransaxle Control

ECM CONNECTOR (C01-1) TERMINAL DESCRIPTION CHART (A/T)

Connector [C01-2]

Pin No.	Description	Connected to
1	Ignition Coil (Cylinder #2) control output	Ignition Coil (Cylinder #2)
2	Ignition Coil (Cylinder #4) control output	Ignition Coil (Cylinder #4)
3	Fuel Tank Pressure Sensor signal input	Fuel Tank Pressure Sensor (FTPS)
4
5
6	Idle Speed Control Actuator [OPEN] control output	Idle Speed Control Actuator (ISCA)
7	"CHECK FUEL CAP" Lamp control output	Cluster ("CHECK FUEL CAP" Lamp)
8	Purge Control Solenoid Valve control output	Purge Control Solenoid Valve (PCSV)
9	Main Relay control output	Main Relay
10
11	Battery voltage supply after ignition switch	Ignition Switch
12	CAN [HIGH]	Other control module, Data Link Connector (DLC)
13
14
15	Knock Sensor signal input	Knock Sensor (KS)
16	Ignition Coil (Cylinder #3) control output	Ignition Coil (Cylinder #3)
17	Ignition Coil (Cylinder #1) control output	Ignition Coil (Cylinder #1)
18
19
20
21	Cooling Fan Relay [Low] control output	Cooling Fan Relay [Low]
22	Idle Speed Control Actuator [CLOSE] control output	Idle Speed Control Actuator (ISCA)
23	Cooling Fan Relay [High] control output	Cooling Fan Relay [High]
24	Fuel consumption signal output	Trip Computer
25	Engine speed signal output	Cluster (Tachometer)
26
27	CAN [LOW]	Other control module, Data Link Connector (DLC)
28
29
30	Sensor ground	Knock Sensor (KS)
31
32	Immobilizer lamp control output	Immobilizer Lamp
33	Heated Oxygen Sensor (Sensor 2) Heater control output	Heated Oxygen Sensor (Sensor 2)
34	Heated Oxygen Sensor (Sensor 1) Heater control output	Heated Oxygen Sensor (Sensor 1)
35	Fuel Pump Relay control output	Fuel Pump Relay
36	Injector (Cylinder #3) control output	Injector (Cylinder #3)
37	Canister Close Valve control output	Canister Close Valve (CCV)
38	A/C Compressor Relay control output	A/C Compressor Relay
39
40	Crankshaft Position Sensor [A] signal input	Crankshaft Position Sensor (CKPS)
41
42	Sensor power (+5 V)	Fuel Tank Pressure Sensor (FTPS)
43	Sensor power (+5 V)	Manifold Absolute Pressure Sensor (MAPS)
44	Immobilizer communication line	Immobilizer Control Module
45	Wheel Speed Sensor [A] signal input	Wheel Speed Sensor (WSS) [Without ABS]
46
47
48	Injector (Cylinder #4) control output	Injector (Cylinder #4)
49	CVVT Oil Control Valve control output	CVVT Oil Control Valve (OCV)
50	Injector (Cylinder #1) control output	Injector (Cylinder #1)
51	Malfunction Indicator Lamp (MIL) control output	Cluster (Malfunction Indicator Lamp)
52	Injector (Cylinder #2) control output	Injector (Cylinder #2)
53
54
55	Crankshaft Position Sensor [B] signal input	Crankshaft Position Sensor (CKPS)
56	Battery Power	Battery
57	Sensor power (+5 V)	A/C Pressure Transducer (APT)
58	Sensor power (+5 V)	Throttle Position Sensor (TPS)
59
60	Wheel Speed Sensor [B] signal input	Wheel Speed Sensor (WSS) [Without ABS]

ECM CONNECTOR (C01-2) TERMINAL DESCRIPTION CHART (A/T)

ECM Terminal Input/Output Signal (A/T)

Connector [C01-1]

Pin No	Description	Condition	Type	Level	Test Result
1	Power Ground	Idle	DC	Max. 50 mV	0 V
2	Power Ground	Idle	DC	Max. 50 mV	2.4 mV
3	Power Ground	Idle	DC	Max. 50 mV	1.8 mV
4	For Autotransaxle Control
5	For Autotransaxle Control
6	Battery voltage supply after main relay	IG OFF	DC	Max. 1.0 V	0 V
6	Battery voltage supply after main relay	IG ON	DC	Battery Voltage	12.8 V
7
8	Sensor ground	Idle	DC	Max. 50 mV	13.2 mV
9	Sensor ground	Idle	DC	Max. 50 mV	8.9 mV
10	Manifold Absolute Pressure Sensor signal input	IG ON	DC	3.9 ~ 4.1 V	4.05 V
10	Manifold Absolute Pressure Sensor signal input	Idle	DC	0.8 ~ 1.6 V	1.55 V
11
12
13	Heated Oxygen Sensor (Sensor 2) signal input	Racing	Analog	Rich: 0.6 ~ 1.0 V	872 mV
13	Heated Oxygen Sensor (Sensor 2) signal input	Racing	Analog	Lean: Max. 0.4 V	155 mV
14
15
16
17	Electric Load (Defrost) signal input	S/W OFF	DC	Max. 0.5 V	0 V
17	Electric Load (Defrost) signal input	S/W ON	DC	Battery Voltage	13.19 V
18
19
20	Vehicle speed signal input	Vehicle Running	Pulse	Hi: Min. 5.0 V	12.4 V
				Lo: Max. 1.0 V	17 mV
					432 Hz at 30 km/h
21
22	Electric Load (Head Lamp) signal input	S/W OFF	DC	Battery Voltage	12.96 V
22	Electric Load (Head Lamp) signal input	S/W ON	DC	Max. 0.5 V	274 mV
23	A/C Switch "ON" signal input	S/W OFF	DC	Max. 1.0 V	10.6 mV
23	A/C Switch "ON" signal input	S/W ON	DC	Battery Voltage	11.78 V
24	Power Ground	Idle	DC	Max. 50 mV	2.1 mV
25	Power Ground	Idle	DC	Max. 50 mV	1.8 mV
26	For Autotransaxle Control
27	For Autotransaxle Control
28
29	Sensor ground	Idle	DC	Max. 50 mV	9.2 mV
30	Sensor ground	Idle	DC	Max. 50 mV	8.7 mV
31	Sensor ground	Idle	DC	Max. 50 mV	7.2 mV
32	Intake Air Temperature Sensor signal input	Idle	DC	0 ~ 5.0 V	1.89 V at 35 °C
33
34
35	Heated Oxygen Sensor (Sensor 1) signal input	Racing	Analog	Rich: 0.6 ~ 1.0 V	880 mV
35	Heated Oxygen Sensor (Sensor 1) signal input	Racing	Analog	Lean: Max. 0.4 V	208 mV
36
37
38	Sensor ground	Idle	DC	Max. 50 mV	3.7 mV
39
40
41	Camshaft Position Sensor signal input	Idle	Pulse	Hi: Battery Voltage	13.86 V
41	Camshaft Position Sensor signal input	Idle	Pulse	Lo: Max. 0.5 V	450 mV
42
43
44	Power Steering Switch signal input	S/W ON	DC	Battery Voltage	11.81 V
44	Power Steering Switch signal input	S/W OFF	DC	Max. 0.5 V	351 mV
45
46	A/C thermal switch signal input	A/C S/W OFF	DC	Max. 1.0 V	0 V
46	A/C thermal switch signal input	A/C S/W ON	DC	Battery Voltage	12.77 V
47	Power (+5 V)
48	For Autotransaxle Control
49
50	For Autotransaxle Control
51	Sensor ground	Idle	DC	Max. 50 mV	6.8 mV
52
53	Fuel Level Sensor signal input	IG ON	DC	0 ~ Battery Voltage	2.14 V
54
55
56
57	For Autotransaxle Control
58
59
60	For Autotransaxle Control
61	For Autotransaxle Control
62	For Autotransaxle Control
63	For Autotransaxle Control
64	Cruise "SET" Lamp control output
65	Cruise Control signal input
66	For Autotransaxle Control
67	For Autotransaxle Control
68	For Autotransaxle Control
69
70	For Autotransaxle Control
71	For Autotransaxle Control
72	For Autotransaxle Control
73	Sensor ground	Idle	DC	Max. 50 mV	2.1 mV
74
75	Throttle Position Sensor signal input	C.T	Analog	0.2 ~ 0.7 V	0.31 V
75	Throttle Position Sensor signal input	W.O.T	Analog	Min. 4.0 V	4.21 V
76
77	Engine Coolant Temperature Sensor signal input	Idle	Analog	0.5 ~ 4.5 V	0.85 V at 95.1 °C
78
79	A/C Pressure Transducer signal input	A/C ON	Analog	Max. 4.8 V	2.51 V
80	For Autotransaxle Control
81	For Autotransaxle Control
82	For Autotransaxle Control
83	For Autotransaxle Control
84	For Autotransaxle Control
85
86
87	For Autotransaxle Control
88	For Autotransaxle Control
89	For Autotransaxle Control
90	For Autotransaxle Control
91	For Autotransaxle Control
92	For Autotransaxle Control
93
94	For Autotransaxle Control

ECM CONNECTOR (C01-1) TERMINAL DESCRIPTION CHART (A/T)

Connector [C01-2]

Pin No.	Description	Condition	Type	Level	Test Result
1	Ignition Coil (Cylinder #2) control output	Idle	Pulse	1st Voltage: 300 ~ 400 V	365 V
				ON Voltage: Max. 2.0 V	1.69 V
					5.0 Hz
2	Ignition Coil (Cylinder #4) control output	Idle	Pulse	1st Voltage: 300 ~ 400 V	362 V
				ON Voltage: Max. 2.0 V	1.69 V
					5.0 Hz
3	Fuel Tank Pressure Sensor signal input	Idle	DC	0.4 ~ 4.6 V	2.45 V
4
5
6	Idle Speed Control Actuator [OPEN] control output	Idle	Pulse	Hi: Battery Voltage	14.8 V
				Lo: Max. 1.0 V	128 mV
					250 Hz at duty 32.5%
7	"CHECK FUEL CAP" Lamp control output	Lamp OFF	DC	Battery Voltage
7	"CHECK FUEL CAP" Lamp control output	Lamp ON	DC	Max. 1.0 V
8	Purge Control Solenoid Valve control output	Active / Inactive	Pulse	Hi: Battery Voltage	14.2 V
				Lo: Max. 1.0 V	215 mV
				Vpeak: Max. 70 V	45.2 V
					13.68 Hz
9	Main Relay control output	Relay OFF	DC	Battery Voltage	12.97 V
9	Main Relay control output	Relay ON	DC	Max. 1.0 V	791 mV
10
11	Battery voltage supply after ignition switch	IG OFF	DC	Max. 0.5 V	2.8 mV
11	Battery voltage supply after ignition switch	IG ON	DC	Battery Voltage	12.18 V
12	CAN [HIGH]	RECESSIVE	Pulse	2.0 ~ 3.0 V	2.36 V
12	CAN [HIGH]	DOMINANT	Pulse	2.75 ~ 4.5 V	3.44 V
13
14
15	Knock Sensor signal input	Knocking	Variable Frequency
15	Knock Sensor signal input	Normal	Variable Frequency
16	Ignition Coil (Cylinder #3) control output	Idle	Pulse	1st Voltage: 300 ~ 400 V	358 V
				ON Voltage: Max. 2.0 V	1.68 V
					5.0 Hz
17	Ignition Coil (Cylinder #1) control output	Idle	Pulse	1st Voltage: 300 ~ 400 V	349 V
				ON Voltage: Max. 2.0 V	1.68 V
					5.0 Hz
18
19
20
21	Cooling Fan Relay [Low] control output	Relay OFF	DC	Battery Voltage	14.05 V
21	Cooling Fan Relay [Low] control output	Relay ON	DC	Max. 1.0 V	52.1 mV
22	Idle Speed Control Actuator [CLOSE] control output	Idle	Pulse	Hi: Battery Voltage	14.9 V
				Lo: Max. 1.0 V	204 mV
					250 Hz at duty 67.5%
23	Cooling Fan Relay [High] control output	Relay OFF	DC	Battery Voltage	14.12 V
23	Cooling Fan Relay [High] control output	Relay ON	DC	Max. 1.0 V	198 mV
24	Fuel consumption signal output	Idle	Pulse	Hi: Battery Voltage	13.9 V
24	Fuel consumption signal output	Idle	Pulse	Lo: Max. 0.5 V	16.1 mV
25	Engine speed signal output	Idle	Pulse	Hi: Battery Voltage	13.9 V
				Lo: Max. 0.5 V	12.1 mV
				20 ~ 26 Hz	21.9 Hz
26
27	CAN [LOW]	RECESSIVE	Pulse	2.0 ~ 3.0 V	2.36 V
27	CAN [LOW]	DOMINANT	Pulse	0.5 ~ 2.25 V	1.44 V
28
29
30	Sensor ground	Idle	DC	Max. 50 mV
31
32	Immobilizer lamp control output	Lamp OFF	DC	Battery Voltage	11.98 V
32	Immobilizer lamp control output	Lamp ON	DC	Max. 1.0 V	27 mV
33	Heated Oxygen Sensor (Sensor 2) Heater control output	Engine Run	Pulse	Hi: Battery Voltage	14.1 V
33	Heated Oxygen Sensor (Sensor 2) Heater control output	Engine Run	Pulse	Lo: Max. 1.0 V	304 mV
34	Heated Oxygen Sensor (Sensor 1) Heater control output	Engine Run	Pulse	Hi: Battery Voltage	14.1 V
34	Heated Oxygen Sensor (Sensor 1) Heater control output	Engine Run	Pulse	Lo: Max. 1.0 V	326 mV
35	Fuel Pump Relay control output	Relay OFF	DC	Battery Voltage	12.3 V
35	Fuel Pump Relay control output	Relay ON	DC	Max. 1.0 V	30 mV
36	Injector (Cylinder #3) control output	Idle	Pulse	Hi: Battery Voltage	14.2 V
				Lo: Max. 1.0 V	330 mV
				Vpeak: Max. 80 V	69.6 V
37	Canister Close Valve (CCV) control output	Active Inactive	Pulse	Hi: Battery Voltage	12.5 V
				Lo: Max. 1.0 V	121 mV
				Vpeak: Max. 70 V	44.7 V
38	A/C Compressor Relay control output	Relay OFF	DC	Battery Voltage	14.32 V
38	A/C Compressor Relay control output	Relay ON	DC	Max. 1.0 V	114 mV
39
40	Crankshaft Position Sensor [A] signal input	Idle		Vp_p: Min. 1.0 V	8.44 V
40	Crankshaft Position Sensor [A] signal input	Idle			718.4 Hz
41
42	Sensor power (+5 V)	IG OFF	DC	Max. 0.5 V
42	Sensor power (+5 V)	IG ON	DC	4.8 ~ 5.2 V
43	Sensor power (+5 V)	IG OFF	DC	Max. 0.5 V	3.6 mV
43	Sensor power (+5 V)	IG ON	DC	4.8 ~ 5.2 V	5.02 V
44	Immobilizer communication line	When communicating after IG ON	Pulse	Hi: Min. 8.5 V	12.31 V
44	Immobilizer communication line	When communicating after IG ON	Pulse	Lo: Max. 3.5 V	1.17 V
45	Wheel Speed Sensor [A] signal input	Vehicle Run	SINE Wave	Vp_p: Min. 0.2 V
46
47
48	Injector (Cylinder #4) control output	Idle	Pulse	Hi: Battery Voltage	14.2 V
				Lo: Max. 1.0 V	330 mV
				Vpeak: Max. 80 V	69.6 V
49	CVVT Oil Control Valve control output	Idle	Pulse	Hi: Battery Voltage	14.9 V
				Lo: Max. 1.0 V	36.2 mV
					300.26 Hz at duty 6.1%
50	Injector (Cylinder #1) control output	Idle	Pulse	Hi: Battery Voltage	14.2 V
				Lo: Max. 1.0 V	330 mV
				Vpeak: Max. 80 V	69.6 V
51	Malfunction Indicator Lamp (MIL) control output	Lamp OFF	DC	Battery Voltage	13.03 V
51	Malfunction Indicator Lamp (MIL) control output	Lamp ON	DC	Max. 1.0 V	716 mV
52	Injector (Cylinder #2) control output	Idle	Pulse	Hi: Battery Voltage	13.6 V
				Lo: Max. 1.0 V	340 mV
				Vpeak: Max. 80 V	69.7 V
53
54
55	Crankshaft Position Sensor [B] signal input	Idle	SINE Wave	Vp_p: Min. 1.0 V	8.44 V
55	Crankshaft Position Sensor [B] signal input	Idle	SINE Wave		718.4 Hz
56	Battery Power	Always	DC	Battery Voltage	12.91 V
57	Sensor power (+5 V)	IG OFF	DC	Max. 0.5 V	4.2 mV
57	Sensor power (+5 V)	IG ON	DC	4.9 ~ 5.1 V	5.04 V
58	Sensor power (+5 V)	IG OFF	DC	Max. 0.5 V	0 V
58	Sensor power (+5 V)	IG ON	DC	4.9 ~ 5.1 V	5.04 V
59
60	Wheel Speed Sensor [B] signal input	Vehicle Run	SINE Wave	Vp_p: Min. 0.2 V

ECM CONNECTOR (C01-2) TERMINAL DESCRIPTION CHART (A/T)

ECM Harness Connector (M/T)

Scheme 50

ECM Terminal Function (M/T)

Connector [C01]

Pin No.	Description	Connected to
1	Ignition Coil (Cylinder #1) control output	Ignition Coil (Cylinder #1)
2	Power Ground	Chassis Ground
3	Ignition Coil (Cylinder #3) control output	Ignition Coil (Cylinder #3)
4
5
6	Battery voltage supply after main relay	Main Relay
7	Ignition Coil (Cylinder #4) control output	Ignition Coil (Cylinder #4)
8	A/C thermal switch signal input	A/C Thermal Switch
9
10	Power Steering Switch signal input	Power Steering Switch
11	Knock Sensor signal input	Knock Sensor (KS)
12	Sensor ground	Throttle Position Sensor (TPS)
13
14
15	Sensor ground	Manifold Absolute Pressure Sensor (MAPS)
16	Sensor ground	Heated Oxygen Sensor (Sensor 2)
17	Sensor ground	Camshaft Position Sensor (CMPS)
18	Immobilizer communication line	Immobilizer Control Module
19	Manifold Absolute Pressure Sensor signal input	Manifold Absolute Pressure Sensor (MAPS)
20
21
22	Main Relay control output	Main Relay
23	Cooling Fan Relay [High] control output	Cooling Fan Relay [High]
24	Injector (Cylinder #3) control output	Injector (Cylinder #3)
25	Idle Speed Control Actuator [CLOSE] control output	Idle Speed Control Actuator (ISCA)
26
27
28	Cooling Fan Relay [Low] control output	Cooling Fan Relay [Low]
29	Ignition Coil (Cylinder #2) control output	Ignition Coil (Cylinder #2)
30	A/C Switch "ON" signal input	A/C Switch
31	Electric Load (Head Lamp) signal input
32	Sensor ground	Knock Sensor (KS)
33	Sensor ground	A/C Pressure Transducer (APT)
34	Sensor ground	Fuel Tank Pressure Sensor (FTPS)
35	Sensor ground	Engine Coolant Temperature Sensor (ECTS)
36	Heated Oxygen Sensor (Sensor 2) signal input	Heated Oxygen Sensor (Sensor 2)
37
38	Sensor ground	Heated Oxygen Sensor (Sensor 1)
39	Throttle Position Sensor signal input	Throttle Position Sensor (TPS)
40	A/C Pressure Transducer signal input	A/C Pressure Transducer (APT)
41
42
43	Intake Air Temperature Sensor signal input	Intake Air Temperature Sensor (IATS)
44
45	A/C Compressor Relay control output	A/C Compressor Relay
46	Canister Close Valve control output	Canister Close Valve (CCV)
47	Injector (Cylinder #2) control output	Injector (Cylinder #2)
48	Immobilizer lamp control output	Immobilizer Lamp
49	Fuel Pump Relay control output	Fuel Pump Relay
50	Fuel Tank Pressure Sensor signal input	Fuel Tank Pressure Sensor (FTPS)
51	Power Ground	Chassis Ground
52
53
54	Heated Oxygen Sensor (Sensor 1) signal input	Heated Oxygen Sensor (Sensor 1)
55
56
57
58	Wheel Speed Sensor [A] signal input	Wheel Speed Sensor (WSS) [Without ABS]
59	Sensor power (+5 V)	A/C Pressure Transducer (APT)
60	Sensor power (+5 V)	Throttle Position Sensor (TPS)
61
62	CAN [LOW]	Other control module, Data Link Connector (DLC)
63	Camshaft Position Sensor signal input	Camshaft Position Sensor (CMPS)
64	Vehicle speed signal input	ABS Control Module [With ABS]
65
66	Electric Load (Defrost) signal input
67	Engine speed signal output	Cluster (Tachometer)
68	Injector (Cylinder #4) control output	Injector (Cylinder #4)
69	Purge Control Solenoid Valve control output	Purge Control Solenoid Valve (PCSV)
70	Malfunction Indicator Lamp (MIL) control output	Cluster (Malfunction Indicator Lamp)
71	Heated Oxygen Sensor (Sensor 2) Heater control output	Heated Oxygen Sensor (Sensor 2)
72	Heated Oxygen Sensor (Sensor 1) Heater control output	Heated Oxygen Sensor (Sensor 1)
73	Power Ground	Chassis Ground
74
75
76	Fuel Level Sensor signal input	Fuel Level Sensor (FLS)
77	Engine Coolant Temperature Sensor signal input	Engine Coolant Temperature Sensor (ECTS)
78
79	Wheel Speed Sensor [B] signal input	Wheel Speed Sensor (WSS) [Without ABS/ESP]
80	Sensor power (+5 V)	Fuel Tank Pressure Sensor (FTPS)
81	Sensor power (+5 V)	Manifold Absolute Pressure Sensor (MAPS)
82	Battery Power	Battery
83	Battery voltage supply after ignition switch	Ignition Switch
84	CAN [HIGH]	Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
85
86	Crankshaft Position Sensor [B] signal input	Crankshaft Position Sensor (CKPS)
87	Crankshaft Position Sensor [A] signal input	Crankshaft Position Sensor (CKPS)
88	Fuel consumption signal output	Trip Computer
89
90	Idle Speed Control Actuator [OPEN] control output	Idle Speed Control Actuator (ISCA)
91	Injector (Cylinder #1) control output	Injector (Cylinder #1)
92	CVVT Oil Control Valve control output	CVVT Oil Control Valve (OCV)
93
94	"CHECK FUEL CAP" Lamp control output	Cluster ("CHECK FUEL CAP" Lamp)

ECM CONNECTOR (C01-1) TERMINAL DESCRIPTION CHART (M/T)

ECM Terminal Input/Output Signal (M/T)

CONNECTOR [C01]

Pin No.	Description	Condition	Type	Level	Test Result
1	Ignition Coil (Cylinder #1) control output	Idle	Pulse	1st Voltage: 300 ~ 400 V	349 V
				ON Voltage: Max. 2.0 V	1.68 V
					5.0 Hz
2	Power Ground	Idle	DC	Max. 50 mV	0 V
3	Ignition Coil (Cylinder #3) control output	Idle	Pulse	1st Voltage: 300 ~ 400 V	358 V
				ON Voltage: Max. 2.0 V	1.68 V
					5.0 Hz
4
5
6	Battery voltage supply after main relay	IG OFF	DC	Max. 1.0 V	0 V
6	Battery voltage supply after main relay	IG ON	DC	Battery Voltage	12.81 V
7	Ignition Coil (Cylinder #4) control output	Idle	Pulse	1st Voltage: 300 ~ 400 V	362 V
				ON Voltage: Max. 2.0 V	1.69 V
					5.0 Hz
8	A/C thermal switch signal input	A/C S/W OFF	DC	Max. 1.0 V	0 V
8	A/C thermal switch signal input	A/C S/W ON	DC	Battery Voltage	12.77 V
9
10	Power Steering Switch signal input	S/W ON	DC	Battery Voltage	11.81 V
10	Power Steering Switch signal input	S/W OFF	DC	Max. 0.5 V	351 mV
11	Knock Sensor signal input	Knocking	Variable Frequency
11	Knock Sensor signal input	Normal	Variable Frequency
12	Sensor ground	Idle	DC	Max. 50 mV	13.2 mV
13
14
15	Sensor ground	Idle	DC	Max. 50 mV	8.9 mV
16	Sensor ground	Idle	DC	Max. 50 mV	7.2 mV
17	Sensor ground	Idle	DC	Max. 50 mV	6.8 mV
18	Immobilizer communication line	When communicating after IG ON	Pulse	Hi: Min. 8.5 V	12.31 V
18	Immobilizer communication line	When communicating after IG ON	Pulse	Lo: Max. 3.5 V	1.17 V
19	Manifold Absolute Pressure Sensor signal input	IG ON	DC	3.9 ~ 4.1 V	4.05 V
19	Manifold Absolute Pressure Sensor signal input	Idle	DC	0.8 ~ 1.6 V	1.55 V
20
21
22	Main Relay control output	Relay OFF	DC	Battery Voltage	12.97 V
22	Main Relay control output	Relay ON	DC	Max. 1.0 V	791 mV
23	Cooling Fan Relay [High] control output	Relay OFF	DC	Battery Voltage	14.12 V
23	Cooling Fan Relay [High] control output	Relay ON	DC	Max. 1.0 V	198 mV
24	Injector (Cylinder #3) control output	Idle	Pulse	Hi: Battery Voltage	14.2 V
				Lo: Max. 1.0 V	330 mV
				Vpeak: Max. 80 V	69.6 V
25	Idle Speed Control Actuator [CLOSE] control output	Idle	Pulse	Hi: Battery Voltage	14.9 V
				Lo: Max. 1.0 V	204 mV
				Vpeak: Max. 80 V	250 Hz at duty 67.5%
26
27
28	Cooling Fan Relay [Low] control output	Relay OFF	DC	Battery Voltage	14.05 V
28	Cooling Fan Relay [Low] control output	Relay ON	DC	Max. 1.0 V	52.1 mV
29	Ignition Coil (Cylinder #2) control output	Idle	Pulse	1st Voltage: 300 ~ 400 V	365 V
				ON Voltage: Max. 2.0 V	1.69 V
					5.0 Hz
30	A/C Switch "ON" signal input	A/C S/W OFF	DC	Max. 1.0 V	10.6 mV
30	A/C Switch "ON" signal input	A/C S/W ON	DC	Battery Voltage	11.78 V
31	Electric Load (Head Lamp) signal input	S/W OFF	DC	Battery Voltage	12.96 V
31	Electric Load (Head Lamp) signal input	S/W ON	DC	Max. 0.5 V	274 mV
32	Sensor ground	Idle	DC	Max. 50 mV
33	Sensor ground	Idle	DC	Max. 50 mV	2.4 mV
34	Sensor ground	Idle	DC	Max. 50 mV	9.2 mV
35	Sensor ground	Idle	DC	Max. 50 mV	3.7 mV
36	Heated Oxygen Sensor (Sensor 2) signal input	Racing	Analog	Rich: 0.6 ~ 1.0 V	872 mV
36	Heated Oxygen Sensor (Sensor 2) signal input	Racing	Analog	Lean: Max. 0.4 V	155 mV
37
38	Sensor ground	Idle	DC	Max. 50 mV	2.1 mV
39	Throttle Position Sensor signal input	C.T	Analog	0.2 ~ 0.7 V	0.31 V
39	Throttle Position Sensor signal input	W.O.T	Analog	Min. 4.0 V	4.21 V
40	A/C Pressure Transducer signal input	A/C ON	Analog	Max. 4.8 V	2.51 V
41
42
43	Intake Air Temperature Sensor signal input	Idle	DC	0.2 ~ 4.8 V	1.89 V at 35 °C
44
45	A/C Compressor Relay control output	Relay OFF	DC	Battery Voltage	14.32 V
45	A/C Compressor Relay control output	Relay ON	DC	Max. 1.0 V	114 mV
46	Canister Close Valve control output	Active Inactive	Pulse	Hi: Battery Voltage	12.5 V
				Lo: Max. 1.0 V	121 mV
				Vpeak: Max. 70 V	44.7 V
47	Injector (Cylinder #2) control output	Idle	Pulse	Hi: Battery Voltage	13.6 V
				Lo: Max. 1.0 V	340 mV
				Vpeak: Max. 80 V	69.7 V
48	Immobilizer lamp control output	Lamp OFF	DC	Battery Voltage	11.98 V
48	Immobilizer lamp control output	Lamp ON	DC	Max. 1.0 V	27 mV
49	Fuel Pump Relay control output	Relay OFF	DC	Battery Voltage	12.3 V
49	Fuel Pump Relay control output	Relay ON	DC	Max. 1.0 V	30 mV
50	Fuel Tank Pressure Sensor signal input	Idle	DC	0.4 ~ 4.6 V	2.45 V
51	Power Ground	Idle	DC	Max. 50 mV	1.8 mV
52
53
54	Heated Oxygen Sensor (Sensor 1) signal input	Racing	Analog	Rich: 0.6 ~ 1.0 V	880 mV
54	Heated Oxygen Sensor (Sensor 1) signal input	Racing	Analog	Lean: Max. 0.4 V	208 mV
55
56
57
58	Wheel Speed Sensor [A] signal input	Vehicle Run	SINE Wave	Vp_p: Min. 0.2 V
59	Sensor power (+5 V)	IG OFF	DC	Max. 0.5 V	4.2 mV
59	Sensor power (+5 V)	IG ON	DC	4.9 ~ 5.1 V	5.04 V
60	Sensor power (+5 V)	IG OFF	DC	Max. 0.5 V	0 V
60	Sensor power (+5 V)	IG ON	DC	4.9 ~ 5.1 V	5.04 V
61
62	CAN [LOW]	RECESSIVE	Pulse	2.0 ~ 3.0 V	2.36 V
62	CAN [LOW]	DOMINANT	Pulse	0.5 ~ 2.25 V	1.44 V
63	Camshaft Position Sensor signal input	Idle	Pulse	Hi: Battery Voltage	13.86 V
63	Camshaft Position Sensor signal input	Idle	Pulse	Lo: Max. 0.5 V	450 mV
64	Vehicle speed signal input	Vehicle Running	Pulse	Hi: Min. 4.5 V	12.4 V
				Lo: Max. 1.0 V	17 mV
					432 Hz at 30 km/h
65
66	Electric Load (Defrost) signal input	S/W OFF	DC	Max. 0.5 V	0 mV
66	Electric Load (Defrost) signal input	S/W ON	DC	Battery Voltage	13.19 V
67	Engine speed signal output	Idle	Pulse	Hi: Battery Voltage	13.9 V
				Lo: Max. 0.5 V	12.1 mV
				20 ~ 26 Hz	21.9 Hz
68	Injector (Cylinder #4) control output	Idle	Pulse	Hi: Battery Voltage	14.2 V
				Lo: Max. 1.0 V	330 mV
				Vpeak: Max. 80 V	69.6 V
69	Purge Control Solenoid Valve control output	Active / Inactive	Pulse	Hi: Battery Voltage	14.2 V
				Lo: Max. 1.0 V	215 mV
				Vpeak: Max. 70 V	45.2 V
					13.68 Hz
70	Malfunction Indicator Lamp (MIL) control output	Lamp OFF	DC	Battery Voltage	13.03 V
70	Malfunction Indicator Lamp (MIL) control output	Lamp ON	DC	Max. 1.0 V	716 mV
71	Heated Oxygen Sensor (Sensor 2) Heater control output	Engine Run	Pulse	Hi: Battery Voltage	14.1 V
71	Heated Oxygen Sensor (Sensor 2) Heater control output	Engine Run	Pulse	Lo: Max. 1.0 V	304 mV
72	Heated Oxygen Sensor (Sensor 1) Heater control output	Engine Run	Pulse	Hi: Battery Voltage	14.1 V
72	Heated Oxygen Sensor (Sensor 1) Heater control output	Engine Run	Pulse	Lo: Max. 1.0 V	326 mV
73	Power Ground	Idle	DC	Max. 50 mV	2.1 mV
74
75
76	Fuel Level Sensor signal input	IG ON	DC	0 ~ Battery Voltage	2.14 V
77	Engine Coolant Temperature Sensor signal input	Idle	Analog	0.5 ~ 4.5 V	0.85 V at 95.1 °C
78
79	Wheel Speed Sensor [B] signal input	Vehicle Run	SINE Wave	Vp_p: Min. 0.2 V
80	Sensor power (+5 V)	IG OFF	DC	Max. 0.5 V	3.6 mV
80	Sensor power (+5 V)	IG ON	DC	4.8 ~ 5.2 V	5.02 V
81	Sensor power (+5 V)	IG OFF	DC	Max. 0.5 V	3.6 mV
81	Sensor power (+5 V)	IG ON	DC	4.8 ~ 5.2 V	5.02 V
82	Battery Power	Always	DC	Battery Voltage	12.23 V
83	Battery voltage supply after ignition switch	IG OFF	DC	Max. 1.0 V	2.8 mV
83	Battery voltage supply after ignition switch	IG ON	DC	Battery Voltage	12.18 V
84	CAN [HIGH]	RECESSIVE	Pulse	2.0 ~ 3.0 V	2.36 V
84	CAN [HIGH]	DOMINANT	Pulse	2.75 ~ 4.5 V	3.44 V
85
86	Crankshaft Position Sensor [B] signal input	Idle	SINE Wave	Vp_p: Min. 1.0 V	8.44 V
86	Crankshaft Position Sensor [B] signal input	Idle	SINE Wave		718.4 Hz
87	Crankshaft Position Sensor [A] signal input	Idle	SINE Wave	Vp_p: Min. 1.0 V	8.44 V
87	Crankshaft Position Sensor [A] signal input	Idle	SINE Wave		718.4 Hz
88	Fuel consumption signal output	Idle	Pulse	Hi: Battery Voltage	13.9 V
88	Fuel consumption signal output	Idle	Pulse	Lo: Max. 0.5 V	16.1 mV
89
90	Idle Speed Control Actuator [OPEN] control output	Idle	Pulse	Hi: Battery Voltage	14.8 V
				Lo: Max. 1.0 V	128 mV
					250 Hz at duty 32.5%
91	Injector (Cylinder #1) control output	Idle	Pulse	Hi: Battery Voltage	14.2 V
				Lo: Max. 1.0 V	330 mV
				Vpeak: Max. 80 V	69.6 V
92	CVVT Oil Control Valve control output	Idle	Pulse	Hi: Battery Voltage	14.9 V
				Lo: Max. 1.0 V	36.2 mV
					300.26 Hz at duty 6.1%
93
94	"CHECK FUEL CAP" Lamp control output	Lamp OFF	DC	Battery Voltage
94	"CHECK FUEL CAP" Lamp control output	Lamp ON	DC	Max. 1.0 V

ECM CONNECTOR (C01-1) TERMINAL DESCRIPTION CHART (M/T)

Circuit Diagram

[A/T]

Scheme 51

Scheme 51: Circuit Diagram

Scheme 52

Scheme 53

Scheme 54

[M/T]

Scheme 55

Scheme 56

Scheme 57

Scheme 58

VIN programming procedure

VIN (Vehicle Identification Number) is a number that has the vehicle's information (Maker, Vehicle Type, Vehicle Line/Series, Body Type, Engine Type, Transmission Type, Model Year, Plant Location and so forth. For more information, please refer to GENERAL INFORMATION ). When replacing an ECM, the VIN must be programmed in the ECM. If there is no VIN in ECM memory, the fault code (DTC P0630) is set.

CAUTION

The programmed VIN cannot be changed. When writing the VIN, confirm the VIN carefully

Scheme 59

Scheme 60

Scheme 61

Scheme 62

Scheme 63

Scheme 64

Scheme 65

Select "Vehicle" and "Engine" (For example, TUCSON 2.0L L4).
Select "VIN WRITING".
Check the PCM status. NOTE: VIRGIN: VIN is not programmed LEARNT: VIN has been already programmed Is the PCM status "VIRGIN"? YES Go to next step 4. NO END
Write the VIN with cursor, function and number keys. WARNING: Before pressing the "ENTER" key, confirm the VIN again because the programmed VIN cannot be changed.
After verifying the written VIN, press the "ENTER" key.
Turn the ignition switch OFF, and then turn ON.
Verify the programmed VIN in the ECM memory.

Engine Control System: Other Hyundai Accent III

3. OBD-II system readiness tests

Scheme 45

Scheme 46

Scheme 47

Scheme 48

ECM Terminal And Input/Output signal

Scheme 49

Scheme 50

Circuit Diagram

Scheme 51

Scheme 52

Scheme 53

Scheme 54

Scheme 55

Scheme 56

Scheme 57

Scheme 58

VIN programming procedure

Scheme 59

Scheme 60

Scheme 61

Scheme 62

Scheme 63

Scheme 64

Scheme 65

Scheme 66

Scheme 67

Scheme 68

Scheme 69

Scheme 70

Scheme 71

Scheme 72

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Scheme 74

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Scheme 78

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Scheme 80

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Scheme 93

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