Hyundai Elantra: Engine Control Module (ECM). Schematic Diagrams - Engine Control System - Engine Control/Fuel System - Hyundai Elantra HD 2006Ц2010 Service ManualHyundai Elantra: Engine Control Module (ECM). Schematic Diagrams


Engine Control Module (ECM)

1.
Harness Connector

2.
Terminal Function
Connector [CBG-K]
Pin
No.
Description
Connected to
1
Power Ground
Chassis Ground
2
Battery voltage supply after ignition switch
Ignition Switch
3
Power Ground
Chassis Ground
4
Battery voltage supply after main relay
Main Relay
5
ECM Ground
Chassis Ground
6
Battery Power
Battery
7
Ignition Coil (Cylinder #1,4) control output
Ignition Coil (Cylinder #1,4)
8
Shield
Ignition Coil
9
Sensor ground
Mass Air Flow Sensor (MAFS)
10
Mass Air Flow Sensor signal input
Mass Air Flow Sensor (MAFS)
11
-
 
12
Ground
Immobilizer Control Module
13
A/C Pressure Transducer signal input
A/C Pressure Transducer (APT)
14
Sensor ground
Engine Coolant Temperature Sensor (ECTS)
15
Engine Coolant Temperature Sensor signal input
Engine Coolant Temperature Sensor (ECTS)
16
-

17
-

18
Intake Air Temperature Sensor signal input
Intake Air Temperature Sensor (IATS)
19
-
 
20
-
 
21
Sensor ground
Knock Sensor (KS)
22
Knock Sensor signal input
Knock Sensor (KS)
23
Sensor power (+5V)
Throttle Position Sensor (TPS)
24
-
 
25
Injector (Cylinder #1) control output
Injector (Cylinder #1)
26
Injector (Cylinder #3) control output
Injector (Cylinder #3)
27
Injector (Cylinder #4) control output
Injector (Cylinder #4)
28
Injector (Cylinder #2) control output
Injector (Cylinder #2)
29
Ignition Coil (Cylinder #2,3) control output
Ignition Coil (Cylinder #2,3)
30
-
 
31
-
 
32
-
 
33
Fuel Tank Pressure Sensor signal input
Fuel Tank Pressure Sensor (FTPS)
34
Sensor ground
Fuel Tank Pressure Sensor (FTPS)
35
-
 
36
-
 
37
Sensor ground
CVVT Oil Temperature Sensor (OTS)
38
Heated Oxygen Sensor (B1/S2) signal input
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
39
Sensor ground
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
40
CVVT Oil Temperature Sensor signal input
CVVT Oil Temperature Sensor (OTS)
41
Throttle Position Sensor signal input
Throttle Position Sensor (TPS)
42
Sensor ground
Throttle Position Sensor (TPS)
43
VS+ (NERNST Cell Voltage)
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
44
VS-/IP- (Common Ground for VS,IP)
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
45
Rc/Rp (Pump Cell Voltage)
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
46
Rc (Compensative Resistavce)
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
47
Sensor power (+5V)
A/C Pressure Transducer (APT)
48
Sensor power (+5V)
Fuel Tank Pressure Sensor (FTPS)
49
-
 
50
-
 
51
-
 
52
-
 
53
Vehicle speed
signal input
ABS/ESP Control Module [With ABS/ESC]
54
-
 
55
Wheel Speed Sensor [A] signal input
Wheel Speed Sensor (WSS)[Without ABS/ESC]
56
Wheel Speed Sensor [B] signal input
Wheel Speed Sensor (WSS)[Without ABS/ESC]
57
Sensor ground
A/C Pressure Transducer (APT)
58
-
 
59
-
 
60
A/C switch "ON" signal input
A/C Switch
61
-
 
62
A/C thermal switch signal input
A/C Thermal Switch
63
Fuel consumption signal output
Trip Computer
64
Main Relay control output
Main Relay
65
Cooling Fan Relay [Low] control output
Cooling Fan Relay [Low]
66
CVVT Oil Control Valve control output
CVVT Oil Control Valve (OCV)
67
Purge Control Solenoid Valve control output
Purge Control Solenoid Valve (PCSV)
68
-
 
69
Immobilizer lamp control output
Immobilizer Lamp
70
Fuel Pump Relay control output
Fuel Pump Relay
71
-
 
72
-
 
73
Battery voltage supply after main relay
Main Relay
74
Alternator load signal input
Alternator
75
Immobilizer communication line
Immobilizer Control Module
76
-

77
CAN [HIGH]
Other control module
78
CAN [LOW]
Other control module
79
Sensor ground
Camshaft Position Sensor (CMPS)
80
Camshaft Position Sensor signal input
Camshaft Position Sensor (CMPS)
81
Sensor ground
Crankshaft Position Sensor (CKPS)
82
Crankshaft Position Sensor signal input
Crankshaft Position Sensor (CKPS)
83
-
 
84
Clutch Switch signal input
Clutch Switch
85
-
 
86
Engine speed signal output
Cluster (Tachometer)
87
A/C Compressor Relay control output
A/C Compressor Relay
88
Cooling Fan Relay [High] control output
Cooling Fan Relay [High]
89
Idle Speed Control Actuator [OPEN] control output
Idle Speed Control Actuator (ISCA)
90
Idle Speed Control Actuator [CLOSE] control output
Idle Speed Control Actuator (ISCA)
91
Canister Close Valve control output
Canister Close Valve (CCV) 
92
Malfunction Indicator Lamp (MIL) control output
Cluster (Malfunction Indicator Lamp)
93
Heated Oxygen Sensor (B1/S1) Heater control output
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
94
Heated Oxygen Sensor (B1/S2) Heater control output
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]

3.
Terminal Input/output Signal
Connector [CBG-K]
Pin
No.
Description
Condition
Type
Level
Test Result
1
Power Ground
Idle
DC
Max. 50mV
 
2
Battery voltage supply after ignition switch
IG OFF
DC
Max. 1.0V
1.18mV
IG ON
Battery Voltage
12.7V
3
Power Ground
Idle
DC
Max. 50mV
-4.37mV
4
Battery voltage supply after main relay
IG OFF
DC
Max. 1.0V
-5.1mV
IG ON
Battery Voltage
12.3V
5
ECM Ground
Idle
DC
Max. 50mV
10.1mV
6
Battery Power
Always
DC
Battery Voltage
12.2V
7
Ignition Coil (Cylinder #1,4) control output
Idle
Pulse
1st Voltage: 300 ~ 400V
372V
ON Voltage: Max. 2.0V
1.6V
8
Shield
Idle
DC
Max. 50mV
18.3mV
9
Sensor ground
Idle
DC
Max. 50mV
18.7mV
10
Mass Air Flow Sensor signal input
Idle
DC
0 ~ 2.0V
1.1V
3,000 rpm
1.0 ~ 4.5V
1.85V
11
-
 
 
 
 
12
Ground
Idle
DC
Max. 50mV
 
13
A/C Pressure Transducer signal input
Idle
DC
0.4 ~ 4.6V
A/C OFF:1.18V A/C ON:1.48V
14
Sensor ground
Idle
DC
Max. 50mV
13.0mV
15
Engine Coolant Temperature Sensor signal input
Idle
DC
0.5 ~ 4.5V
1.84V
16
Sensor ground
Idle
DC
Components and Components Location
Components Location 1. ECM (Engine Control Module) 2. Mass Air Flow Sensor (MAFS) 3. Intake Air Temperature Sensor (IATS) 4. Engine Coolant Temperature Sensor (ECTS) ...

Engine Control Module (ECM). Repair procedures
ECM Problem Inspection Procedure 1. TEST ECM GROUND CIRCUIT: Measure resistance between ECM and chassis ground using the backside of ECM harness connector as ECM side chec ...