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Home >> Kia >> 2021 >> Niro Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (PHEV) >> 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 NUMBER DESCRIPTION

Pin No. Description Connected to
1 Injector (Cylinder #3) [Low] control Injector (Cylinder #3)
2 Injector (Cylinder #4) [High] control Injector (Cylinder #4)
3 Injector (Cylinder #4) [Low] control Injector (Cylinder #4)
4 Engine speed signal output Smart Key Control Module [Smart key type]/Immobilizer Module [Immobilizer type]
5 EGR Valve (Motor-) Electric Exhaust Gas Recirculation (EGR) Valve
6 Sensor power (+5V) Throttle Position Sensor (TPS) 1, 2
7 Sensor power (+5V) Electric Exhaust Gas Recirculation (EGR) Valve
8 Knock Sensor (KS) signal input Knock Sensor (KS)
9 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
10 -  
11 Brake switch [Test] signal input Brake switch
12 Brake switch [Lamp] signal input Brake switch
13 -  
14 -  
15 -  
16 Injector (Cylinder #3) [High] control Injector (Cylinder #3)
17 Injector (Cylinder #1) [High] control Injector (Cylinder #1)
18 Injector (Cylinder #1) [Low] control Injector (Cylinder #1)
19 -  
20 EGR Valve (Motor +) Electric Exhaust Gas Recirculation (EGR) Valve
21 Sensor shield Knock Sensor (KS)
22 Sensor ground (-) Knock Sensor (KS)
23 -  
24 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1/Exhaust]
25 -  
26 -  
27 -  
28 -  
29 -  
30 -  
31 Injector (Cylinder #2) [High] control Injector (Cylinder #2)
32 -  
33 ETC Motor[-] control ETC Motor
34 Sensor ground Throttle Position Sensor (TPS) 1, 2
35 Throttle Position Sensor (TPS) 1 signal input Throttle Position Sensor (TPS) 1
36 Sensor ground Rail Pressure Sensor (RPS)
37 Rail Pressure Sensor (RPS) signal input Rail Pressure Sensor (RPS)
38 -  
39 Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input Camshaft Position Sensor (CMPS) [Bank 1/Intake]
40 -  
41 -  
42 -  
43 VS-/IP-(Virtual Ground) Heated Oxygen Sensor [Bank 1/Sensor 1]
44 Rc (Compensative Resistance) Heated Oxygen Sensor [Bank 1/Sensor 1]
45 Sensor ground Heated Oxygen Sensor [Bank 1/Sensor 2]
46 Injector (Cylinder #2) [Low] control Injector (Cylinder #2)
47 -  
48 ETC Motor [+] control ETC Motor
49 -  
50 Throttle Position Sensor (TPS) 2 signal input Throttle Position Sensor (TPS) 2
51 Sensor power (+5V) Rail Pressure Sensor (RPS)
52 Electric load signal input Wiper Motor
53 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1/Intake]
54 Sensor ground Electric Exhaust Gas Recirculation (EGR) Valve
55 EGR Valve (Feedback signal) Electric Exhaust Gas Recirculation (EGR) Valve
56 -  
57 -  
58 VS+(NERNST cell voltage) Heated Oxygen Sensor [Bank 1/Sensor 1]
59 Rc/Rp (Pumping cell voltage) Heated Oxygen Sensor [Bank 1/Sensor 1]
60 Heated Oxygen Sensor [Bank 1/Sensor 2] signal input Heated Oxygen Sensor [Bank 1/Sensor 2]

Connector [K] 

PIN NUMBER DESCRIPTION

Pin No. Description Connected to
1 ECM Ground Chassis ground
2 Battery power (B+) Main Relay
3 ECM Ground Chassis ground
4 Battery power (B+) Main Relay
5 ECM Ground Chassis ground
6 Battery power (B+) Main Relay
7 Fuel Pressure Control Valve [High] control Fuel Pressure Control Valve (FPCV)
8 -  
9 -  
10 Engine Coolant Sensor (ECTS) signal input [EGR cooler tube] Engine Coolant Sensor (ECTS) [EGR cooler tube]
11 Sensor ground Engine Coolant Sensor (ECTS) [EGR cooler tube]
12 Vehicle signal input Active Hydraulic Boost (AHB) System
Smart key control module
13 -  
14 -  
15 Accelerator Position Sensor (APS) 2 signal input Accelerator Position Sensor (APS) 2
16 Sensor power (+5V) Accelerator Position Sensor (APS) 2
17 Sensor power (+5V) Manifold Absolute Pressure Sensor (MAPS) & Intake Air Temperature Sensor (IATS)
18 Sensor power (+5V) Accelerator Position Sensor (APS) 1
19 Accelerator Position Sensor (APS) 1 signal input Accelerator Position Sensor (APS) 1
20 Sensor power (+5V) Crankshaft Position Sensor (CKPS)
A/C Pressure Transducer (APT)
21 -  
22 -  
23 -  
24 Fuel pump relay control Fuel pump relay
25 -  
26 -  
27 -  
28 -  
29 Fuel Pressure Control Valve [Low] control Fuel Pressure Control Valve(FPCV)
30 A/C Pressure Transducer (APT) signal input A/C Pressure Transducer (APT)
31 -  
32 Crankshaft Position Sensor (CKPS) signal input Crankshaft Position Sensor (CKPS)
33 -  
34 -  
35 -  
36 -  
37 Sensor ground (-) Accelerator Position Sensor (APS) 2
38 Manifold Absolute Pressure Sensor (MAPS) signal input Manifold Absolute Pressure Sensor (MAPS) & Intake Air Temperature Sensor (IATS)
39 Intake Air Temperature Sensor (IATS) signal input Manifold Absolute Pressure Sensor (MAPS) & Intake Air Temperature Sensor (IATS)
40 Sensor ground (-) Manifold Absolute Pressure Sensor (MAPS) & Intake Air Temperature Sensor (IATS)
41 Sensor ground (-) Accelerator Position Sensor (APS) 1
42 -  
43 -  
44 Mass Air Flow Sensor (MAFS) signal input Mass Air Flow Sensor (MAFS)
45 Sensor ground (-) Mass Air Flow Sensor (MAFS)
46 Main Relay control Main Relay
47 Variable Force Solenoid (VFS) [Bank 1/Intake] control Variable Force Solenoid (VFS) [Bank 1/Intake]
48    
49 -  
50 -  
51 Battery power (B+) Ignition Switch
52 -  
53 -  
54 Sensor ground (-) Crankshaft Position Sensor (CKPS)
55 P-CAN [High] Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
56 H-CAN [High] Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
57 -  
58 Immobilizer communication line Smart key control module
59 -  
60 Engine Coolant Sensor (ECTS) signal input [Water Temperature Control Assembly] Engine Coolant Sensor (ECTS) [Water Temperature Control Assembly]
61 Sensor ground Engine Coolant Sensor (ECTS) [Water Temperature Control Assembly]
62    
63 -  
64 Ignition Coil (Cylinder #2) control Ignition Coil (Cylinder #2)
65 Ignition Coil (Cylinder #3) control Ignition Coil (Cylinder #3)
66 -  
67 -  
68 Cooling fan relay control Cooling Fan Relay
69 -  
70 CVVT Oil Control Valve (OCV) (OCV) [Bank 1/Exhaust] control CVVT Oil Control Valve (OCV) (OCV) [Bank 1/Exhaust]
71 -  
72 -  
73 Battery power (B+) Battery
74 -  
75 Sensor ground (-) A/C Pressure Transducer (APT)
76 Local Interconnect Network (LIN) Serial Bus Line Battery Sensor
77 P-CAN [Low] Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
78 H-CAN [Low] Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
79 -  
80 -  
81 -  
82 -  
83 -  
84 -  
85 -  
86 Ignition Coil (Cylinder #4) control Ignition Coil (Cylinder #4)
87 Ignition Coil (Cylinder #1) control Ignition Coil (Cylinder #1)
88 -  
89 -  
90 -  
91 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] Heater control Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
92 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] Heater control Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
93 Purge Control Solenoid Valve (PCSV) control Purge Control Solenoid Valve (PCSV)
94 -