Hyundai Sonata: Engine Control Module (ECM). Schematic Diagrams - Engine Control System - Engine Control/Fuel SystemHyundai Sonata: Engine Control Module (ECM). Schematic Diagrams

ECM Terminal And Input/Output signal

ECM Terminal Function
Connector [CHG-AG]
Pin
No.
 Description
 Connected to
1
 Ignition Coil (Cylinder #2) control output
 Ignition Coil (Cylinder #2)
2
 -
  
3
 -
  
4
 -
  
5
 ETC Motor [+] control output
 ETC Motor
6
 ETC Motor [-] control output
 ETC Motor
7
 -
  
8
 -
  
9
 -
  
10
 -
  
11
 -
  
12
 Sensor power (+5V)
 Rail Pressure Sensor (RPS)
A/C Pressure Transducer (APT)
Power Steering Pressure Sensor (PSPS)
Fuel Tank Pressure Sensor (FTPS)
13
 -
  
14
 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] signal input
 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
15
 -
16
 -
  
17
 -
  
18
 -
  
19
 -
  
20
 Fuel Tank Pressure Sensor (FTPS) signal input
 Fuel Tank Pressure Sensor (FTPS)
21
 -
  
22
 Ignition Coil (Cylinder #4) control output
 Ignition Coil (Cylinder #4)
23
 -
  
24
 -
  
25
 -
  
26
 -
  
27
 -
  
28
 -
  
29
 -
  
30
 -
  
31
 -
  
32
 -
  
33
 Sensor power (+5V)
 Throttle Position Sensor (TPS) 1,2
34
 -
  
35
 Sensor ground
 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
36
 Ground
 Cruise Control Switch
37
 -
  
38
 -
  
39
 Rail Pressure Sensor (RPS) signal input
 Rail Pressure Sensor (RPS)
40
 -
  
41
 Sensor ground
 Fuel Tank Pressure Sensor (FTPS)
42
 -
  
43
 Shield
 Ignition Coil (Cylinder #1,2,3,4)
44
 -
  
45
 -
  
46
 -
  
47
 -
  
48
 -
  
49
 -
  
50
 -
  
51
 -
  
52
 -
  
53
 -
  
54
 Sensor ground
 Throttle Position Sensor (TPS) 1,2
55
 Sensor ground
 Accelerator Position Sensor (APS) 2
56
 Sensor ground
 Accelerator Position Sensor (APS) 1
57
 Immobilizer communication line
 Smart Key Control Module [With Button Engine Start System]
Immobilizer Control Module [Without Button Engine Start System]
58
 -
  
59
 Intake Air Temperature Sensor (IATS) signal input
 Intake Air Temperature Sensor (IATS)
60
 Sensor ground
 Rail Pressure Sensor (RPS)
61
 Sensor ground
 Manifold Absolute Pressure Sensor (MAPS)
Intake Air Temperature Sensor (IATS)
62
 Sensor ground
 Engine Coolant Temperature Sensor (ECTS)
63
 Engine Coolant Temperature Sensor (ECTS) signal input
 Engine Coolant Temperature Sensor (ECTS)
64
 Ignition Coil (Cylinder #3) control output
 Ignition Coil (Cylinder #3)
65
 -
  
66
 -
  
67
 -
  
68
 -
  
69
 -
  
70
 -
  
71
 -
  
72
 -
  
73
 -
  
74
 -
  
75
 Throttle Position Sensor (TPS) 2 signal input
 Throttle Position Sensor (TPS) 2
76
 Accelerator Position Sensor (APS) 2 signal input
 Accelerator Position Sensor (APS) 2
77
 Accelerator Position Sensor (APS) 1 signal input
 Accelerator Position Sensor (APS) 1
78
 -
79
 -
  
80
 Sensor ground
 A/C Pressure Transducer (APT)
81
 -
  
82
 Manifold Absolute Pressure Sensor (MAPS) signal input
 Manifold Absolute Pressure Sensor (MAPS)
83
 Rc/Rp (Pump Cell Voltage)
 Heated Oxygen Sensor [Bank 1/Sensor 1]
84
 VS-/IP- (Common Ground for VS, IP)
 Heated Oxygen Sensor [Bank 1/Sensor 1]
85
 Ignition Coil (Cylinder #1) control output
 Ignition Coil (Cylinder #1)
86
 -
  
87
 -
  
88
 -
  
89
 -
  
90
 -
  
91
 -
  
92
 -
  
93
 -
  
94
 -
  
95
 -
  
96
 Throttle Position Sensor (TPS) 1 signal input
 Throttle Position Sensor (TPS) 1
97
 Sensor power (+5V)
 Accelerator Position Sensor (APS) 2
98
 Sensor power (+5V)
 Accelerator Position Sensor (APS) 1
99
 -
100
 -
  
101
 A/C Pressure Transducer (APT) signal input
 A/C Pressure Transducer (APT)
102
 -
  
103
 Sensor power (+5V)
 Manifold Absolute Pressure Sensor (MAPS)
104
 Rc (Compensative Resistance)
 Heated Oxygen Sensor [Bank 1/Sensor 1]
105
 VS+ (NERNST Cell Voltage)
 Heated Oxygen Sensor [Bank 1/Sensor 1]

Connector [CHG-BG]
    Pin
    No.
    		 Description
    		 Connected to
    1
    		 ECM ground
    		 Chassis ground
    2
    		 ECM ground
    		 Chassis ground
    3
    		 Battery power (B+)
    		 Main Relay
    4
    		 ECM ground
    		 Chassis ground
    5
    		 Battery power (B+)
    		 Main Relay
    6
    		 Battery power (B+)
    		 Main Relay
    7
    		 -
    8
    		 Crankshaft Position Sensor (CKPS) signal input
    		 Crankshaft Position Sensor (CKPS)
    9
    		 -
    		  
    10
    		 Brake Switch 2 signal input
    		 Brake Switch
    11
    		 -
    		  
    12
    		 -
    		  
    13
    		 -
    		  
    14
    		 -
    		  
    15
    		 Electrical load signal input
    		 Alternator
    16
    		 Alternator PWM signal output
    		 Alternator
    17
    		 -
    18
    		 Cooling Fan Relay [High] control output
    		 Cooling Fan Relay [High]
    19
    		 Immobilizer Lamp control output
    		 Immobilizer Lamp [Without Button Engine Start System]
    20
    		 -
    		  
    21
    		 -
    		  
    22
    		 Injector (Cylinder #2) [High] control output
    		 Injector (Cylinder #2)
    23
    		 Injector (Cylinder #2) [Low] control output
    		 Injector (Cylinder #2)
    24
    		 -
    25
    		 Sensor ground
    		 Crankshaft Position Sensor (CKPS)
    26
    		 -
    		  
    27
    		 Brake Switch 1 signal input
    		 Brake Switch
    28
    		 -
    		  
    29
    		 Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input
    		 Camshaft Position Sensor (CMPS) [Bank 1/Intake]
    30
    		 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input
    		 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
    31
    		 -
    		  
    32
    		 LIN communication signal input
    		 Battery Sensor
    33
    		 Cooling Fan Relay [Low] control output
    		 Cooling Fan Relay [Low]
    34
    		 -
    35
    		 -
    		  
    36
    		 -
    		  
    37
    		 Malfunction Indicator Lamp (MIL) control output
    		 Malfunction Indicator Lamp (MIL)
    38
    		 -
    		  
    39
    		 Injector (Cylinder #3) [High] control output
    		 Injector (Cylinder #3)
    40
    Components and Components Location
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    Engine Control Module (ECM). Repair procedures
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