Hyundai Tucson: Engine Control System / Engine Control Module (ECM)

- ECM Connector and Terminal Function

ECM Terminal Function

Connector [A]

Pin No	Description	Connected to
1	ECM Ground	Chassis Ground
2	E-CVVT Motor [-] Control	E-CVVT Motor
3	E-CVVT Motor [+] Control	E-CVVT Motor
4	E-CVVT Relay Power	E-CVVT Relay
5	-
6	Sensor Power (+5V)	Throttle Position Sensor (TPS)
7	-
8	-
9	-
10	Oil Temperature Sensor (OPTS) Signal Input	Oil Pressure & Temperature Sensor (OPTS)
11	Oil Pressure Sensor (OPTS) Signal Input
12	-
13	Sensor Ground	Engine Coolant Temperature Sensor (ECTS) #3 (Cylinder Block Side)
14	Engine Coolant Temperature Sensor (ECTS) #3 Signal Input	Engine Coolant Temperature Sensor (ECTS) #3 (Cylinder Block Side)
15	Intake Air Temperature Sensor (IATS) Signal Input	Intake Air Temperature Sensor (IATS)
16	-
17	-
18	-
19	-
20	-
21	-
22	-
23	-
24	-
25	ECM Ground	Chassis Ground
26	-
27	-
28	-
29	Throttle Position Sensor (TPS) #1 Signal Input	Throttle Position Sensor (TPS) #1
30	Throttle Position Sensor (TPS) #2 Signal Input	Throttle Position Sensor (TPS) #2
31	-
32	-
33	Sensor Ground	Oil Pressure & Temperature Sensor (OPTS)
34	-
35	Engine Coolant Temperature Sensor (ECTS) #1 Signal Input	Engine Coolant Temperature Sensor (ECTS) #1 (ITM Side)
36	Engine Coolant Temperature Sensor (ECTS) #2 Signal Input	Engine Coolant Temperature Sensor (ECTS) #2 (Water Pump Side)
37	Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] Signal Input	Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
38	Camshaft Position Sensor (CMPS) [Bank 1 / Intake] Signal Input	Camshaft Position Sensor (CMPS) [Bank 1 / Intake]
39	-
40	-
41	-
42	-
43	-
44	-
45	-
46	-
47	-
48	ECM Ground	Chassis Ground
49	-
50	-
51	Knock Sensor (KS) Signal Input	Knock Sensor (KS)
52	Sensor Ground
53	Sensor Ground	Throttle Position Sensor (TPS)
54	-
55	EGR Valve Feedback Signal Input	EGR Valve
56	-
57	-
58	Sensor Ground	Engine Coolant Temperature Sensor (ECTS) #1 (ITM Side)
59	Sensor Ground	Engine Coolant Temperature Sensor (ECTS) #2 (Water Pump Side)
60	Sensor Ground	Manifold Absolute Pressure Sensor (MAPS)
		Intake Air Temperature Sensor (IATS)
61	Sensor Ground	Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
62	Sensor Ground	Camshaft Position Sensor (CMPS) [Bank 1 / Intake]
63	-
64	-
65	-
66	-
67	-
68	-
69	-
70	-
71	-
72	-
73	-
74	NERNST Cell Voltage	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]
75	VS-/IP- (Virtual Ground)	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]
76	Rc (Correction Resistance)	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]
77	Sensor Ground	Brake Booster Vacuum Pressure Sensor (BBVPS)
78	Sensor Ground	EGR Valve
79	-
80	-
81	Rail Pressure Sensor (RPS) Signal Input	Rail Pressure Sensor (RPS)
82	-
83	Sensor Ground	Rail Pressure Sensor (RPS)
84	Sensor Ground	Crankshaft Position sensor (CKPS)
85	-
86	-
87	-
88	-
89	-
90	-
91	-
92	EGR Valve Motor [+] Control	EGR Valve Motor
93	ETC Motor [+] Control	ETC Motor
94	-
95	-
96	ITM Motor [+] Control	ITM Motor
97	VG Virtual Ground	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]
98	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Signal Input	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]
99	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] (V_IP)	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]
100	Brake Booster Vacuum Pressure Sensor (BBVPS) Signal Input	Brake Booster Vacuum Pressure Sensor (BBVPS)
101	Sensor Power (+5V)	Oil Pressure & Temperature Sensor (OPTS)
102	Sensor Power (+5V)	Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
		Brake Booster Vacuum Pressure Sensor (BBVPS)
		EGR Valve
103	Sensor Power (+5V)	Rail Pressure Sensor (RPS)
104	Sensor Power (+5V)	Crankshaft Position sensor (CKPS)
		Manifold Absolute Pressure Sensor (MAPS)
		Intake Air Temperature Sensor (IATS)
		Camshaft Position Sensor (CMPS) [Bank 1 / Intake]
105	Manifold Absolute Pressure Sensor (MAPS) Signal Input	Manifold Absolute Pressure Sensor (MAPS)
106	-
107	Crankshaft Position sensor (CKPS) Signal Input	Crankshaft Position sensor (CKPS)
108	-
109	-
110	-
111	-
112	-
113	-
114	-
115	EGR Valve Motor [-] Control	EGR Valve Motor
116	ETC Motor [-] Control	ETC Motor
117	-
118	-
119	ITM Motor [-] Control	ITM Motor

Connector [B]

Pin No	Description	Connected to
1	Battery Power (B+)	Main Relay
2	Battery Power (B+)	Main Relay
3	Battery Power (B+)	Main Relay
4	ECM Ground	Chassis Ground
5	Battery Power (B+)	Main Relay
6	P-CAN (High)	Other control module, Data Link Connector (DLC)
7	P-CAN (Low)	Other control module, Data Link Connector (DLC)
8	-
9	-
10	Sensor Power (+5V)	Accelerator Pedal Position Sensor (APS) #2
11	Sensor Power (+5V)	Mass Air Flow Sensor (MAFS)
		ITM Motor and Position Sensor
12	Sensor Power (+5V)	Accelerator Pedal Position Sensor (APS) #1
13	Mass Air Flow Sensor (MAFS) Signal Input	Mass Air Flow Sensor (MAFS)
14	-
15	-
16	Vehicle Speed Signal Input	ABS Module
17	Ignition Feedback 'A' (Cylinder #4) Signal Input	Ignition Coil (Cylinder #4)
18	Ignition 'D' (Cylinder #3) Signal Input	Ignition Coil (Cylinder #3)
19	-
20	-
21	Variable Oil Pump Solenoid Valve Signal Input	Variable Oil Pump Solenoid Valve
22	ISG Inhibition Lamp Signal Input	ISG Inhibition Lamp
23	ISG Starter Relay (Highside)	ISG Starter Relay
24	MPI Injector (Cylinder #4) Control	MPI Injector (Cylinder #4)
25	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Heater Control	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]
26	High Pressure Fuel Pump [Low] Control	High Pressure Fuel Pump
27	High Pressure Fuel Pump [High] Control
28	-
29	Local-CAN (High)	Other control module, Data Link Connector (DLC)
30	Local-CAN (Low)
31	Starter Motor Control Switch Signal Input	Starter Motor Control Switch
32	A/C Pressure Transducer (APT) Signal Input	A/C Pressure Transducer (APT)
33	Accelerator Pedal Position Sensor (APS) #2 Signal Input	Accelerator Pedal Position Sensor (APS) #2
34	Accelerator Pedal Position Sensor (APS) #1 Signal Input	Accelerator Pedal Position Sensor (APS) #1
35	-
36	Sensor Ground	Mass Air Flow Sensor (MAFS)
37	-
38	-
39	Wiper 'P' Signal Input	Multifunction Switch
	Head Lamp Switch Signal Input
40	Ignition Feedback 'B' (Cylinder #2) Control	Ignition Coil (Cylinder #2)
41	Ignition 'A' (Cylinder #4) Control	Ignition Coil (Cylinder #4)
42	Immobilizer Lamp Signal Input	Immobilizer Control Module
43	-
44	E-CVVT Relay Control	E-CVVT Relay
45	Purge Control Solenoid Valve (PCSV) Control	Purge Control Solenoid Valve (PCSV)
46	-
47	MPI Injector (Cylinder #2) Control	MPI Injector (Cylinder #2)
48	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Heater Control	Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]
49	GDI Injector (Cylinder #1) [High] Control	GDI Injector (Cylinder #1)
50	GDI Injector (Cylinder #4) [High] Control	GDI Injector (Cylinder #4)
51	Start Relay Control	Start Relay
52	Local-CAN (High) Control	Other control module, Data Link Connector (DLC)
53	Local-CAN (Low) Control
54	Start Signal Input	Start Relay
55	Sensor Ground	A/C Pressure Transducer (APT)
56	Sensor Ground	Accelerator Pedal Position Sensor (APS) #2
57	Sensor Ground	Accelerator Pedal Position Sensor (APS) #1
58	-
59	-
60	-
61	-
62	-
63	Brake Switch (test) Signal Input	Brake Switch
64	Ignition 'C' (Cylinder #1) Control	Ignition Coil (Cylinder #1)
65	Cooling Fan Control Relay [High] Control	Cooling Fan Control Relay
66	-
67	Electric Fuel Pump Relay Control	Electric Fuel Pump Relay
68	-
69	Variable Intake Solenoid (VIS) Valve Control	Variable Intake Solenoid (VIS) Valve
70	-
71	CVVT Oil Control Valve (OCV) [Bank 1 / Exhaust] Control	CVVT Oil Control Valve (OCV) [Bank 1 / Exhaust]
72	-
73	GDI Injector (Cylinder #1) [Low] Control	GDI Injector (Cylinder #1)
74	-
75	-
76	-
77	LIN1 Communication	Other control module, Data Link Connector (DLC)
78	Sensor Ground	ITM Motor and Position Sensor
79	-
80	-
81	-
82	-
83	-
84	-
85	-
86	-
87	Ignition 'B' (Cylinder #2) Control	Ignition Coil (Cylinder #2)
88	Main Relay Control	Main Relay
89	Engine Speed Signal Output	Smart Key Control Module
90	-
91	-
92	-
93	MPI Injector (Cylinder #3) Control	MPI Injector (Cylinder #3)
94	-
95	GDI Injector (Cylinder #2) [High] Control	GDI Injector (Cylinder #2)
96	GDI Injector (Cylinder #3) [High] Control	GDI Injector (Cylinder #3)
97	Wheel Speed Sensor (+)	Wheel Speed Sensor
98	Wheel Speed Sensor (-)
99	Immobilizer (Smart Key) Communication Line	Smart Key Control Module
100	LIN2 Communication	Other control module, Data Link Connector (DLC)
101	ITM Motor and Position Sensor Signal Input	ITM Motor and Position Sensor
102	Blower Max Detection Switch Signal Output	Blower Switch
103	ISG Inhibition Switch Signal Output	ISG Inhibition Switch
104	-
105	Fuel Level Sender (FLS) Signal Output	Fuel Level Sender (FLS)
106	-
107	A/C ON/OFF Switch Control	A/C ON/OFF Switch
108	A/C Compressor Switch Control	A/C Compressor Switch
109	Brake Switch (lamp) Signal Input	Brake Switch
110	LSD Starter Relay Control	LSD Starter Relay
111	Starter Relay Information Input	Starter Relay
112	Cooling Fan Control Relay [Low] Control	Cooling Fan Control Relay
113	A/C Compressor Relay Control	A/C Compressor Relay
114	-
115	-
116	MPI Injector (Cylinder #1) Control	MPI Injector (Cylinder #1)
117	GDI Injector (Cylinder #3) [Low] Control	GDI Injector (Cylinder #3)
118	GDI Injector (Cylinder #2) [Low] Control	GDI Injector (Cylinder #2)
119	GDI Injector (Cylinder #4) [Low] Control	GDI Injector (Cylinder #4)

- Inspection Inspection for Using the Diagnosis Tool

1.In the engine control system, failure can be quickly diagnosed by using the diagnosis tool.

(1)Self diagnosis : Checking failure and code number (DTC).

(2)Current data : Checking the system input/output data state.

(3)Actuation test : Checking the system operation condition.

(4)Additional function : Controlling other features including system option setting and zero point adjustment.

Component Inspection

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

Specification : below 1Ω

2.TEST ECM CONNECTOR: Disconnect the ECM connector and visually check the ground terminals on ECM side and harness side for bent pins or poor contact pressure. If the problem is found, repair it.

3.If problem is not found in Step 1 and 2, the ECM could be faulty. If so, replace the ECM with a new one, and then check the vehicle again. If the vehicle operates normally then the problem was likely with the ECM.

4.RE- TEST THE ORIGINAL ECM : Install the original ECM (may be broken) into a known-good vehicle and check the vehicle. If the problem occurs again, replace the original ECM with a new one. If problem does not occur, this is intermittent problem.(Refer to Intermittent Problem Procedure in Basic Inspection Procedure)

- Removal

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

2.Remove the air cleaner assembly.(Refer to Engine Mechanical System - "Air Cleaner")

3.Disconnect the ECM connector (A).

4.Release the fixing hook (A), and then removing the ECM (B).

5.Remove the ECM after loosening the mounting bolts (A).

Tightening Torque :6.9 - 8.8 N.m (0.7 - 0.9 kgf.m, 5.1 - 6.5 lb-ft)

- Installation

1.Install in the reverse order of removal.

2.If replaced the ECM, perform the reset and learning procedure using the diagnosis tool.(Refer to "Adjustment")

- Adjustment

   

• Perform the following procedure when replacing ECM (New parts / Reused parts).

• ECM and TCM are integrated, TCM related procedures should be performed when the ECM is replaced.

1.Perform the neutral mode using the diagnosis tool when replacing with a reused ECM.[Non-Smart Key]

[Smart Key]

2.Perform the "Key Teaching" procedure by using the diagnosis tool.[Non-Smart Key]

[Smart Key] Turn the ignition switch ON then OFF using the smart key or start button. Then the ECM learns information on the smart key automatically.

3.Perform the VIN writing procedure by using the diagnosis tool.

4.Perform the oil pressure characteristics backup procedure using the diagnosis tool.

5.Perform the ETC module learning procedure.(Refer to Engine Control / Fuel System - "ETC System")

6.Perform the TCM learning procedure.(Refer to Automatic Transaxle Control System - "Adjustment")