LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2012 >> Optima Hybrid >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - HEV >> Engine Control Module (ECM) >> Schematic Diagrams >> ECM Terminal And Input/Output signal >> ECM Terminal Function
April 5, 2026: LEMON Manuals is launched! Read the announcement.

ECM Terminal Function

CONNECTOR [CHG-K] INFORMATION

Pin No. Description Connected to
1 Power ground Chassis Ground
2 Battery power (B+) Ignition Switch
3 Power ground Chassis Ground
4 Battery power (B+) Main Relay
5 Power ground Chassis Ground
6 Battery power (B+) Battery
7 -  
8 -  
9 Fuel Level Sender (FLS) signal input Fuel Level Sender (FLS)
10 -  
11 -  
12 Knock Sensor (KS) signal input Knock Sensor (KS)
13 Sensor ground Accelerator Position Sensor (APS) 2
14 Sensor ground Engine Coolant Temperature Sensor (ECTS)
15 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
16 -  
17 Crankshaft Position Sensor (CKPS) signal input Crankshaft Position Sensor (CKPS)
18 Rc / Rp (Pump Cell Voltage) Heated Oxygen Sensor [Bank 1/Sensor 1]
19 VS + (NERNST Cell Voltage) Heated Oxygen Sensor [Bank 1/Sensor 1]
20 VS - / IP - (Common Ground for VS, IP) Heated Oxygen Sensor [Bank 1/Sensor 1]
21 -  
22 -  
23 -  
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 -  
30 Sensor power (+5V) Manifold Absolute Pressure Sensor (MAPS)
31 Manifold Absolute Pressure Sensor (MAPS) signal input Manifold Absolute Pressure Sensor (MAPS)
32 Throttle Position Sensor (TPS) 2 signal input Throttle Position Sensor (TPS) 2
33 Engine Coolant Temperature Sensor (ECTS) signal input Engine Coolant Temperature Sensor (ECTS)
34 Sensor ground Knock Sensor (KS)
35 Accelerator Position Sensor (APS) 2 signal input Accelerator Position Sensor (APS) 2
36 Sensor power (+5V) Accelerator Position Sensor (APS) 2
37 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
38 -  
39 Sensor ground Crankshaft Position Sensor (CKPS)
40 Vehicle speed signal input ESP Control Unit
41 -  
42 Rc (Compensative Resistance) Heated Oxygen Sensor [Bank 1/Sensor 1]
43 Sensor power (+5V) A/C Pressure Transducer (APT)
44 -  
45 -  
46 NVLD communication line NVLD (Natural Vacuum Leakage Detection)
47 -  
48 -  
49 -  
50 HEV READY signal output Power Distribution Module (PDM)
51 Battery power (B+) Main Relay
52 Fuel Tank Pressure Sensor (FTPS) signal input Fuel Tank Pressure Sensor (FTPS)
53 Intake Air Temperature Sensor (IATS) signal input Intake Air Temperature Sensor (IATS)
54 A/C Pressure Transducer (APT) signal input A/C Pressure Transducer (APT)
55 -  
56 -  
57 Sensor ground A/C Pressure Transducer (APT)
58 -  
59 Sensor ground Throttle Position Sensor (TPS) 1, 2
60 Sensor power (+5V) Accelerator Position Sensor (APS) 1
61 Sensor ground Accelerator Position Sensor (APS) 1
62 Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input Camshaft Position Sensor (CMPS) [Bank 1/Intake]
63 Sensor power (+5V) Throttle Position Sensor (TPS) 1, 2
64 Main Relay control output Main Relay
65 Cooling Fan Relay [Low] control output Cooling Fan Relay [Low]
66 CVVT Oil Control (OCV) Valve [Bank 1/Intake] control output CVVT Oil Control Valve (OCV) [Bank 1/Intake]
67 Purge Control Solenoid Valve (PCSV) control output Purge Control Solenoid Valve (PCSV)
68 CVVT Oil Control (OCV) Valve [Bank 1/Exhaust] control output CVVT Oil Control Valve (OCV) [Bank 1/Exhaust]
69 -  
70 Fuel Pump Relay control output Fuel Pump Relay
71 ETC Motor [+] control output ETC Motor
72 ETC Motor [-] control output ETC Motor
73 Sensor ground Fuel Tank Pressure Sensor (FTPS)
74 Sensor ground Manifold Absolute Pressure Sensor (MAPS)
75 Immobilizer communication line Immobilizer Control
76 -  
77 CAN [High] Other control module, Data Link Connector (DLC),
78 CAN [Low] Other control module, Data Link Connector (DLC),
79 -  
80 Throttle Position Sensor (TPS) 1 signal input Throttle Position Sensor (TPS) 1
81 -  
82 Accelerator Position Sensor (APS) 1 signal input Accelerator Position Sensor (APS) 1
83 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1/Intake]
84 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] signal input Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
85 Sensor ground Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
86 -  
87 -  
88 Cooling Fan Relay [High] control output Cooling Fan Relay [High]
89 -  
90 -  
91 Canister Close Valve (CCV) control output Canister Close Valve (CCV)
92 Malfunction Indicator Lamp (MIL) control output Malfunction Indicator Lamp (MIL)
93 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] Heater control output Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
94 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] Heater control output Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
CONNECTOR [CHG-A] INFORMATION

Pin No. Description Connected to
1 Ignition Coil (Cylinder #1) control output (Without immobilizer) Ignition Coil (Cylinder #1)
Ignition Coil (Cylinder #4) control output (With immobilizer) Ignition Coil (Cylinder #4)
2 Shield Ignition Coil (Cylinder #1, 2, 3, 4)
3 -  
4 -  
5 -  
6 -  
7 -  
8 -  
9 -  
10 -  
11 -  
12 -  
13 Electrical load [Wiper] signal input Wiper [Low] Relay
14 -  
15 -  
16 Ignition Coil (Cylinder #3) control output (Without immobilizer) Ignition Coil (Cylinder #3)
Ignition Coil (Cylinder #2) control output (With immobilizer) Ignition Coil (Cylinder #2)
17 -  
18 -  
19 -  
20 -  
21 -  
22 -  
23 -  
24 -  
25 -  
26 -  
27 -  
28 -  
29 Brake Switch 1 signal input Brake Switch
30 -  
31 Ignition Coil (Cylinder #4) control output (Without immobilizer) Ignition Coil (Cylinder #4)
Ignition Coil (Cylinder #1) control output (With immobilizer) Ignition Coil (Cylinder #1)
32 -  
33 -  
34 -  
35 -  
36 -  
37 -  
38 -  
39 -  
40 -  
41 -  
42 -  
43 -  
44 Brake Switch 2 signal input Brake Switch
45 -  
46 Ignition Coil (Cylinder #2) control output (Without immobilizer) Ignition Coil (Cylinder #2)
Ignition Coil (Cylinder #3) control output (With immobilizer Ignition Coil (Cylinder #3)
47 -  
48 -  
49 -  
50 -  
51 -  
52 -  
53 -  
54 -  
55 H-CAN [High] Other control module, Data Link Connector (DLC)
56 H-CAN [Low] Other control module, Data Link Connector (DLC)
57 -  
58 -  
59 -  
60 -