Kia Optima: ECM Terminal And Input/Output signal - Engine Control Module (ECM). Schematic Diagrams - Engine Control System - Engine Control/Fuel System - Kia Optima TF 2011-2024 Service ManualKia Optima: ECM Terminal And Input/Output signal

ECM Terminal Function
Connector [CHTG-AG]
Pin
No.
Description
Connected to
1
Ignition Coil (Cylinder #2) control output [Without Smart Key]
Ignition Coil (Cylinder #2)
Ignition Coil (Cylinder #3) control output [Smart Key]
Ignition Coil (Cylinder #3)
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)
Electric Waste Gate Actuator (EWGA)
Rail Pressure Sensor (RPS)
A/C Pressure Transducer (APT)
Manifold Absolute Pressure Sensor (MAPS) #2
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
Electric Waste Gate Actuator (EWGA) Feed beck signal
Electric Waste Gate Actuator (EWGA)
17
CVVT Oil Temperature Sensor (OTS) signal input
CVVT Oil Temperature Sensor (OTS)
18
Manifold Absolute Pressure Sensor (MAPS)#2 signal input
Manifold Absolute Pressure Sensor (MAPS)#2
19
-
 
20
Fuel Tank Pressure Sensor (FTPS) signal input
Fuel Tank Pressure Sensor (FTPS)
21
Electric Waste Gate Actuator (EWGA) DC Motor output (-)
Electric Waste Gate Actuator (EWGA)
22
Ignition Coil (Cylinder #4) control output [Without Smart Key]
Ignition Coil (Cylinder #4)
Ignition Coil (Cylinder #1) control output [Smart Key]
Ignition Coil (Cylinder #1)
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
-

37
Sensor ground
Electric Waste Gate Actuator (EWGA)
38
-
 
39
Rail Pressure Sensor (RPS) signal input
Rail Pressure Sensor (RPS)
40
-
 
41
Sensor ground
Fuel Tank Pressure Sensor (FTPS)
42
Electric Waste Gate Actuator (EWGA) DC Motor output (+)
Electric Waste Gate Actuator (EWGA)
43
-

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 [Smart Key]
Immobilizer Control Module [Immobilizer]
58
Sensor ground
CVVT Oil Temperature Sensor (OTS)
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 [Without Smart Key]
Ignition Coil (Cylinder #3)
Ignition Coil (Cylinder #2) control output [Smart Key]
Ignition Coil (Cylinder #2)
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
Sensor ground
Manifold Absolute Pressure Sensor (MAPS) #2
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 [Without Smart Key]
Ignition Coil (Cylinder #1)
Ignition Coil (Cylinder #4) control output [With Smart Key]
Ignition Coil (Cylinder #4)
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 [CHTG-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
Electrical load [wiper] signal input
Wiper Relay
15
Electrical load signal input (FR)
Alternator
16
Alternator PWM signal output (COM)
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
-

38
-
 
39
Injector (Cylinder #3) [High] control output
Injector (Cylinder #3)
40
Injector (Cylinder #3) [Low] control output
Injector (Cylinder #3)
41
Battery power (B+)
Ignition Switch
42
-
 
43
-
 
44
Sensor shield
Knock Sensor (KS)
45
Sensor ground
Knock Sensor (KS)
46
Sensor ground
Camshaft Position Sensor (CMPS) [Bank 1/Intake]
47
Sensor ground
Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
48
-
 
49
-
 
50
-
 
51
-
 
52
-
 
53
Main Relay control output
Main Relay
54
-
 
55
-
 
56
Injector (Cylinder #4) [High] control output
Injector (Cylinder #4)
57
Injector (Cylinder #4) [Low] control output
Injector (Cylinder #4)
58
Battery power (B+)
Battery
59
-

60
CAN [Low]
Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
61
-
 
62
Knock Sensor (KS) signal input
Knock Sensor (KS)
63
Clutch Switch signal input
Clutch Switch [M/T]
64
-
 
65
-
 
66
-
 
67
-
 
68
-

69
Starter Relay control output
Starter Relay [With Smart Key]
70
Fuel Pump Relay control output
Fuel Pump Relay
71
Engine speed signal output
Smart Key Control Module
72
RCV Control Solenoid Valve control output
RCV Control Solenoid Valve
73
Injector (Cylinder #1) [High] control output
Injector (Cylinder #1)
74
Injector (Cylinder #1) [Low] control output
Injector (Cylinder #1)
75
Battery power (B+)
Battery
76
-

77
CAN [High]
Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
78
Vehicle speed signal input
ESC Control Unit [With ESC]
79
-
 
80
-
 
81
-
 
82
Starter Control Switch signal input
Smart Key Control Module [With Smart Key]
83
Fuel Level Sender (FLS) signal input
Fuel Level Sender (FLS)
84
CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] control output
CVVT Oil Control Valve (OCV) [Bank 1/Exhaust]
85
CVVT Oil Control Valve (OCV) [Bank 1/Intake] control output
CVVT Oil Control Valve (OCV) [Bank 1/Intake]
86
Purge Control Solenoid Valve (PCSV) control output
Purge Control Solenoid Valve (PCSV)
87
Canister Close Valve (CCV) control output
Canister Close Valve (CCV)
88
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] Heater control output
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
89
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] Heater control output
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
90
Fuel Pressure Regulator Valve [High] control output
Fuel Pressure Regulator Valve
91
Fuel Pressure Regulator Valve [Low] control output
Fuel Pressure Regulator Valve

ECM Terminal Input/ Output signal
Connector [CHTG-AG]
Pin
No.
Description
Condition
Type
Level
1
Ignition Coil (Cylinder #2) control output [Without Smart Key]
Engine
Running
Pulse
Vpeak = 360 ~ 440V
Ignition Coil (Cylinder #3) control output [With Smart Key]
125<Frequency<1,000Hz
(333Hz at idle)
2
-
 
 
 
3
-
See also:

HAC (Hill-start assist control)
Hill start Assist Control is a comfort function. The main intend is to prevent the vehicle from rolling backwards while driving off uphill on an inclined surface. HAC holds the braking pressure bu ...

To unfasten the front lap/shoulder belt
Press the release button on the buckle and allow the belt to slowly retract. WARNING - Front Safety Belts The front seatbacks should always remain in a comfortable, upright position whi ...

Temperature Control Knob
The temperature control knob is the round knob closest to the passenger side of the ventilation control panel. To change the air temperature in the passenger compartment, turn the knob either cloc ...

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