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

Hyundai Santa Fe (TM) 2019-2023 Service and Repair 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
 -
 -
-
 -
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 Location 1. ECM (Engine Control Module) 2. Manifold Absolute Pressure Sensor (MAPS) 3. Intake Air Temperature Sensor (IATS) 4.

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

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