Hyundai Santa Fe: Engine Control System / Engine Control Module (ECM). Schematic diagrams

Hyundai Santa Fe (TM) 2019-2025 Service Manual / Engine Control/Fuel System / Engine Control System / Engine Control Module (ECM). Schematic diagrams

ECM Terminal and Input/Output signal

ECM Terminal Function

Connector A

Pin No	Description	Connected to
1	Power ground	Chassis Ground
2	-	-
3	-	-
4	-	-
5	-	-
6	Fuel Sender Signal	Fuel Sender
7	-	-
8	-	-
9	-	-
10	-	-
11	-	-
12	-	-
13	-	-
14	-	-
15	Stop Lamp Signal	Stop Lamp
16	Brake Test Switch	Brake Switch
17
18	-
19	-
20	Output Speed (Supply)	ATM Solenoid Valve (Otput Speed)
21	Input Speed (Supply)	ATM Solenoid Valve (Input Speed)
22	-	-
23	-	-
24	-	-
25	-	-
26	-	-
27	[A/T] SOL. (PWR1)	ATM Solenoid Valve
28	-	-
29	-	-
30	-	-
31	-	-
31	-	-
32	-	-
33	-	-
34	-	-
35	-	-
36	-	-
37	-	-
38	APT (Signal)	A/C Pressure Transducer (APT)
39	-	-
40	-	-
41	-	-
42	-	-
43	[A/T] Output Speed (Signal)	Engine Control Relay
44	[A/T] Input Speed (Signal)	ATM Solenoid Valve
45	-	-
46	-	-
47	-	-
48	[A/T] SOL. (VFS_26B)	ATM Solenoid Valve
49	[A/T] SOL. (VFS_OD)	ATM Solenoid Valve
50	[A/T] SOL. (VFS_PWR2)	ATM Solenoid Valve
51	-	-
52	-	-
53	-	-
54	-	-
55	-	-
56	APS (APS. 2 Ground)	Accelerator Position Sensor (APS)
57	APS (APS. 1 Ground)	Accelerator Position Sensor (APS)
58	-	-
59	-	-
60	-	-
61	APT (Ground)	A/C Pressure Transducer (APT)
62	-	-
63	-	-
64	-	-
65	-	-
66	-	-
67	-	-
68	-	-
69	[A/T] SOL. (OTS (-))	ATM Solenoid Valve
70	[A/T] SOL. (OTS (+))	ATM Solenoid Valve
71	-	-
72	[A/T] SOL. (VFS_LINE)	ATM Solenoid Valve
73	[A/T] SOL. (VFS_UD)	ATM Solenoid Valve
74	Start Relay Control	B/Alarm Relay
75	-	-
76	Vehicle Speed Signal	IBU & ESP Control Module
77	-	-
78	-	-
79	APS (APS. 2 Ground)	Accelerator Position Sensor (APS)
80	APS (APS. 1 Ground)	Accelerator Position Sensor (APS)
81	-	-
82	O2 Sensor (Up) (V_N)	Oxygen Sensor (Up)
83	O2 Sensor (Down) (Ground)	Oxygen Sensor (Down)
84	O2 Sensor (Up) (V_RC)	Oxygen Sensor (Up)
85	-	-
86	-	-
87	-	-
88	-	-
89	-	-
90	-	-
91	-	-
92	-	-
93	-	-
94	[A/T] SOL. Power (SS-B)	ATM Solenoid Valve
95	[A/T] SOL. (VFS_35R)	ATM Solenoid Valve
96	Memory Power	PCB Block
97	Wiper 'P' Input	PCB Block
98	-	-
99	-	-
100	-	-
101	-	-
102	APS (APS. 2 Supply)	Accelerator Position Sensor (APS)
103	APS (APS. 1 Supply)	Accelerator Position Sensor (APS)
104	APT (Supply)	A/C Pressure Transducer (APT)
105	O2 Sensor (Up) (V_G)	Oxygen Sensor (Up)
106	O2 Sensor (Down) (Signal)	Oxygen Sensor (Down)
107	O2 Sensor (Up) (V_IP)	Oxygen Sensor (Up)
108	-	-
109	Knock Sensor (Ground)	Knock Sensor (KS)
110	Knock Sensor (Signal)	Knock Sensor (KS)
111	-	-
112	-	-
113	-	-
114	-	-
115	-	-
116	-	-
117	[A/T] SOL. (SS-A)	ATM Solenoid Valve
118	[A/T] SOL. (VFS_T/CON)	ATM Solenoid Valve
119	Memory Power	PCB Block

Connector B

Pin No	Description	Connected to
1	Engine Control Relay 'ON' Input	Engine Control Relay
2	Engine Control Relay 'ON' Input	Engine Control Relay
3	Ground	Ground
4	Ground	Ground
5	Engine Control Relay 'ON' Input	PCB Block
6	P-CAN (High)	P-CAN (High)
7	P-CAN (Low)	P-CAN (Low)
8	-	-
9	-	-
10	-	-
11	-	-
12	-	-
13	OPTS (Signal)	Oil Pressure Switch
14	CMP (IN) (Signal)	Camshaft Position Sensor (Intake)
15	CMP (EX) (Signal)	Camshaft Position Sensor (Exhaust)
16	ETC Motor & Throttle Position Sensor.1 Signal	ETC Motor & Throttle Position Sensor
17	ETC Motor & Throttle Position Sensor Supply	ETC Motor & Throttle Position Sensor
18	-	-
19	-	-
20	-	-
21	-	-
22	-	-
23	-	-
24	Ignition Coil #1 (Control)	Ignition Coil #1
25	O2 Sensor (Up) (Heater)	Oxygen Sensor (Up)
26	O2 Sensor (Down) (Heater)	Oxygen Sensor (Down)
27	-	-
28	-	-
29	Local-CAN (High)	Electronic ATM Shift Lever, SCU (High)
30	Local-CAN (Low)	Electronic ATM Shift Lever, SCU (Low)
31	-	-
32	-	-
33	-	-
34	WTS #1 (Signal)	Engine Coolant Temperature Sensor
35	Sensor Power : Map, CMP (In), CKP	Sensor Power : Map, CMP (In), CKP
36	-	-
37	CMP (In) (Ground)	Camshaft Position Sensor (Intake)
38	CMP (EX) (Ground)	Camshaft Position Sensor (Exhaust)
39	ETC Motor & Throttle Position Sensor.2 Signal	ETC Motor & Throttle Position Sensor
40	-	-
41	-	-
42	Fuel Pump Relay Control	Fuel Pump Relay
43	Engine Control Relay Control	Engine Control Relay
44	-	-
45	-	-
46	A/C Relay Control	A/C Relay
47	Ignition Coil #3 (Control)	Ignition Coil #3
48	ETC DC Motor (+)	ETC Motor
49	ETC DC Motor (-)	ETC Motor
50	-	-
51	ON/Start (Input)	ON/Start (Input)
52	-	-
53	-	-
54	-	-
55	-	-
56	-	-
57	WTS #1 (Ground)	Engine Coolant Temperature Sensor
58	MAP & IAT Ground	MAP Sensor
59	-	-
60	-	-
61	-	-
62	ETC (TPS Groud)	ETC Motor & Throttle Position Sensor
63	-	-
64	-	-
65	Start Relay (Low Side)	Start Relay
66	-	-
67	-	-
68	-	-
69	-	-
70	OCV Control (EX)	CVVT Oil Control Valve (OCV)
71	OCV Control (IN)	CVVT Oil Control Valve (OCV)
72	-	-
73	-	-
74	-	-
75	Local-CAN2 (High)	Can Check
76	Local-CAN2 (Low)	Can Check
77	Alternator (IN)	Alternator
78	-	-
79	-	-
80	CKP (Ground)	Crankshaft Position Sensor (CKPS)
81	MAP Sensor (Signal)	MAP Sensor
82	Ignition Coil #1/#4 (Feedback)	Ignition Coil #1 / #4 (Feedback)
83	-	-
84	-	-
85	-	-
86	-	-
87	-	-
88	C/FAN Motor (PWM Signal)	C/FAN Motor
89	PCSV Control	Purge Control Solanoid Valve
90	CCV Control (Not Used)	Canister Close Valve
91	-	-
92	VIS Control	Variable Intake Solenoid Valve (VIS)
93	Ignition Coil #4 Control	Ignition Coil #4
94	Injector Coil #4 Control	Injector Coil #4
95	-	-
96	-	-
97	-	-
98	-	-
99	IMMO. Data Line	Immobilizer
100	-	-
101	-	-
102	-	-
103	Crankshaft Position Sensor (CKPS) signal input	Crankshaft Position Sensor (CKPS)
104	IAT Sensor	MAP Sensor
105	Ignition Coil #2 / #3 (Feedback)	Ignition Coil #2 / #3 (Feedback)
106	-	-
107	-	-
108	CMP (EX) (Supply)	Camshaft Position Sensor (CMPS)
109	FTPS (Not Used)	Fuel Tank Pressure Sensor (FTPS)
110	Engine RPM Signal	Engine RPM Signal
111	-	-
112	-	-
113	-	-
114	-	-
115	Thermostat PWM	Electronic Thermostat
116	Ignition Coil #2 Control	Ignition Coil #2
117	Injector Coil #1 Control	Injector Coil #1
118	Injector Coil #3 Control	Injector Coil #3
119	Injector Coil #2 Control	Injector Coil #2

Components and components location

Components Location 1. ECM (Engine Control Module) 2. Manifold Absolute Pressure Sensor (MAPS) 3. Intake Air Temperature Sensor (IATS) 4...

Engine Control Module (ECM). Repair procedures

Removal • If you replace the PCM, you must perform oil pressure characteristics back up & input (TCU Replacement)...

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