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Home >> Kia >> 2017 >> Optima LX 1.6T >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 1.6L (Except HEV) >> Engine Control Module (ECM) >> Schematic Diagrams >> ECM Terminal And Input/Output signal >> ECM Terminal Function
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ECM Terminal Function

Connector [A] 

Pin No. Description Connected to
1 Injector (Cylinder #3) [High] control output Injector (Cylinder #3)
2 Injector (Cylinder #4) [High] control output Injector (Cylinder #4)
3 Injector (Cylinder #2) [Low] control output Injector (Cylinder #2)
4 EWGA Motor Control (+) Electric WGT Control Actuator
5 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] heater control output Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
6 Battery Sensor ground Battery Sensor
7 - -
8 - -
9 EWGA Sensor Ground (-) Electric Waste Gate Actuator (EWGA)
10 - -
11 - -
12 - -
13 - -
14 - -
15 CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] control output CVVT Oil Control Valve (OCV) [Bank 1/Exhaust]
16 Injector (Cylinder #2) [High] control output Injector (Cylinder #2)
17 Injector (Cylinder #1) [High] control output Injector (Cylinder #1)
18 Injector (Cylinder #3) [Low] control output Injector (Cylinder #3)
19 EWGA Motor Control (-) Electric Waste Gate Actuator (EWGA)
20 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor2] heater control output Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
21 - -
22 - -
23 Engine Coolant Temperature Sensor (ECTS) signal input Engine Coolant Temperature Sensor (ECTS)
24 Sensor ground Engine Coolant Temperature Sensor (ECTS)
25 - -
26 - -
27 Fuel pump relay control output (NON-Smart key type) Fuel pump relay
28 - -
29 A/C compressor relay control output A/C compressor relay
30 - -
31 Ignition coil (Cylinder #3) control output Ignition coil (Cylinder #3)
32 Ignition coil (Cylinder #1) control output Ignition coil (Cylinder #1)
33 Injector (Cylinder #1) [Low] control output Injector (Cylinder #1)
34 Fuel Pressure Control Valve (FPCV) [High] control output Fuel Pressure Control Valve (FPCV)
35 ETC motor [-] control output ETC motor
36 - -
37 Knock Sensor (KS) signal input Knock Sensor (KS)
38 Sensor ground Knock Sensor (KS)
39 Blower Switch Max. Signal input Heater control module
40 Brake Light switch signal input Brake switch
41 - -
42 - -
43 - -
44 - -
45 CVVT Oil Control Valve (OCV) [Bank 1/Intake] control output CVVT Oil Control Valve (OCV) [Bank 1/Intake]
46 Ignition coil (Cylinder #4) control output Ignition coil (Cylinder #4)
47 Ignition coil (Cylinder #2) control output Ignition coil (Cylinder #2)
48 Injector (Cylinder #4) [Low] control output Injector (Cylinder #4)
49 Fuel Pressure Control Valve (FPCV) [Low] control output Fuel Pressure Control Valve (FPCV)
50 ETC motor [+] control output ETC motor
51 - -
52 EWGA sensor feed back signal input Electric Waste Gate Actuator (EWGA)
53 Brake Test switch signal input Brake switch
54 - -
55 Clutch switch signal input Clutch switch
56 Electric load signal input [Defrost] Alternator
57 Alternator COM signal output Alternator
58 Engine speed signal output Cluster
59 Cooling fan relay [PWM] control output Cooling fan relay
60 - -

Connector [K] 

Pin No. Description Connected to
1 ECM ground Chassis ground
2 ECM ground Chassis ground
3 ECM ground Chassis ground
4 Battery power (B+) Main relay
5 Battery power (B+) Battery
6 Battery power (B+) Battery
7 Battery power (B+) Main relay
8 Sensor ground Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
9 Accelerator Position Sensor (APS) 1 signal input Accelerator Position Sensor (APS) 1
10 Sensor ground Accelerator Position Sensor (APS) 2
11 - -
12 - -
13 - -
14 Throttle Position Sensor (TPS) 1 signal input Throttle Position Sensor (TPS) 1
15 - -
16 - -
17 Fuel Level signal input Fuel Level Sender (FLS)
18 Sensor power (+5V) Accelerator Position Sensor (APS) 2
19 Sensor power (+5V) Electric WGT Control Actuator
Rail Pressure Sensor (RPS)
20 Sensor power (+5V) Boost Pressure Sensor (BPS)
A/C Pressure Transducer (APT)
21 - -
22 Wiper switch signal input Wiper switch
23 - -
24 Alternator PWM signal output [FR] Alternator
25 - -
26 - -
27 - -
28 - -
29 Ignition switch signal input -
30 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] signal input Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
31 Accelerator Position Sensor (APS) 2 signal input Accelerator Position Sensor (APS) 2
32 Sensor ground Accelerator Position Sensor (APS) 1
33 Sensor ground Ambient Temperature Sensor (ATS)
34 - -
35 Sensor ground Throttle Position Sensor (TPS)
36 Throttle Position Sensor (TPS) 2 signal input Throttle Position Sensor (TPS) 2
37 Ambient Temperature Sensor (ATS) signal input Ambient Temperature Sensor (ATS)
38 - -
39 Sensor power (+5V) Throttle Position Sensor (TPS) 1, 2
40 Sensor power (+5V) Accelerator Position Sensor (APS) 1
41 Sensor power (+5V) Manifold Absolute Pressure Sensor (MAPS)
42 Sensor power (+5V) Camshaft Position Sensor (CMPS) [Bank 1/Intake]
Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
43 A/C switch input Heater & A/C control module
44 A/C pressure Switch Heater & A/C control module
45 A/C Pressure Transducer (APT) signal input A/C Pressure Transducer (APT)
46 Vehicle speed signal input Vehicle Speed Sensor
47 - -
48 - -
49 - -
50 - -
51 - -
52 VS-/IP- (Common Ground for VS, IP) Heated Oxygen Sensor [Bank 1/Sensor 1]
53 Rc/Rp (Pump Cell Voltage) Heated Oxygen Sensor [Bank 1/Sensor 1]
54 - -
55 Sensor ground Boost Pressure Sensor (BPS)
56 - -
57 Boost Pressure Sensor (BPS) signal input Boost Pressure Sensor (BPS)
58 Rail Pressure Sensor (RPS) signal input Rail Pressure Sensor (RPS)
59 - -
60 Start signal input PDM module
61 LIN communication signal input -
62 - -
63 CAN [Low] Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
64 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
65 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
66 - -
67 Crankshaft Position Sensor (CKPS) [B] signal input Crankshaft Position Sensor (CKPS)
68 - -
69 - -
70 RCV control Solenoid Valve control output RCV control solenoid valve
71 - -
72 Purge Control Solenoid Valve (PCSV) control output Purge Control Solenoid Valve (PCSV)
73 - -
74 VS+ (NERNST Cell Voltage) Heated Oxygen Sensor [Bank 1/Sensor 1]
75 Rc (Compensative Resistance) Heated Oxygen Sensor [Bank 1/Sensor 1]
76 Sensor ground Rail Pressure Sensor (RPS)
77 Sensor ground A/C Pressure Transducer (APT)
78 Sensor ground Manifold Absolute Pressure Sensor (MAPS)
79 Intake Temperature Sensor (IATS) signal input Intake Temperature Sensor (IATS)
80 Manifold Absolute Pressure Sensor (MAPS) signal input Manifold Absolute Pressure Sensor (MAPS)
81 - -
82 - -
83 Immobilizer communication line Smart Key Control Module [With Button Engine Start System]
Immobilizer Control Module [Without Button Engine Start System]
84 - -
85 CAN [High] Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
86 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1/Intake]
87 Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input Camshaft Position Sensor (CMPS) [Bank 1/Intake]
88 - -
89 Crankshaft Position Sensor (CKPS) [A] signal input Crankshaft Position Sensor (CKPS)
90 Fuel pump relay control output (Smart key type) Fuel pump relay
91 - -
92 - -
93 Main relay control output Main relay
94 Start relay (Low) control output Start relay