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Home >> Hyundai >> 2021 >> Ioniq Plug-In Hybrid SE >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (PHEV) >> Engine Control Module (ECM) >> Schematic Diagrams >> ECM Terminal And Input/Output Signal >> Connector [A]
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Connector [A]

Pin No Description Connected to
1 Injector (Cylinder #3) [Low] control output Injector (Cylinder #3)
2 Injector (Cylinder #4) [High] control output Injector (Cylinder #4)
3 Injector (Cylinder #3) [Low] control output Injector (Cylinder #3)
4 Vehicle speed signal output Cluster
5 EGR Valve (Motor -) EGR Valve
6 Sensor power (+5V) Throttle Position Sensor (TPS) 1, 2
7 Sensor power (+5V) 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 output Injector (Cylinder #3)
17 Injector (Cylinder #1) [High] control output Injector (Cylinder #1)
18 Injector (Cylinder #1) [Low] control output Injector (Cylinder #1)
19 -  
20 EGR Valve (Motor +) 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 Wake up signal input Body control module (BCM)
27 -  
28 -  
29 -  
30 -  
31 Injector (Cylinder #2) [High] control output Injector (Cylinder #2)
32 -  
33 ETC Motor [-] control output 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- (Common Ground for VS, IP) 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 output Injector (Cylinder #2)
47 -  
48 ETC Motor [+] control output 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 Electrical load signal input Wiper Motor
53 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1/Intake]
54 Sensor ground EGR Valve
55 EGR Valve (Feedback signal) EGR Valve
56 -  
57 -  
58 VS+ (NERNST Cell Voltage) Heated Oxygen Sensor [Bank 1/Sensor 1]
59 Rc/Rp (Pump 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]


Pin No Description Condition Type Level
1 Injector (Cylinder #3) [Low] control output Relay OFF DC 71V
Relay ON Max 1.0V
2 Injector (Cylinder #4) [High] control output Relay ON/OFF DC 71V
3 Injector (Cylinder #3) [Low] control output Relay OFF DC 71V
Relay ON Max 1.0V
4 Vehicle speed signal output Idle Pulse High: Battery Voltage
Low: Max 0.6V
5 EGR Valve (Motor -)      
6 Sensor power (+5V) IG OFF DC Max 0.5V
IG ON 4.9-5.1V
7 Sensor power (+5V) IG OFF DC Max 50 mV
IG ON 4.9-5.1V
8 Knock Sensor (KS) signal input Knocking Variable -0.3 to 0.3V
Normal Frequency 0V
9 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input Engine Run Pulse High: 4.5-5.5V
Low: -0.3 to 0.5V
Frequency: 7 Hz (Idle), 25 Hz (3, 000 rpm)
10 -      
11 Brake Switch [test] signal input Brake OFF DC Battery Voltage (B+)
Brake ON Max 50 mV
12 Brake Switch [lamp] signal input Brake OFF DC Max 50 mV
Brake ON Battery Voltage (B+)
13 -      
14 -      
15 -      
16 Injector (Cylinder #3) [High] control output Relay ON/OFF DC 71V
17 Injector (Cylinder #1) [High] control output Relay ON/OFF DC 71V
18 Injector (Cylinder #1) [Low] control output Relay OFF DC 71V
Relay ON Max 1.0V
19 -      
20 EGR Valve (motor +)      
21 Sensor shield Idle DC Max 50 mV
22 Sensor ground Idle DC Max 50 mV
23 -      
24 Sensor ground Idle DC Max 50 mV
25 -      
26 Wake up signal input      
27 -      
28 -      
29 -      
30 -      
31 Injector (Cylinder #2) [High] control output Relay ON/OFF DC 71V
32 -      
33 ETC Motor [-] control output      
34 Sensor ground Idle DC Max 50 mV
35 Throttle Position Sensor (TPS) 1 signal input C.T Analog 0.3-0.9V
W.O.T 1.5-3.0V
36 Sensor ground Idle DC Max 50 mV
37 Rail Pressure Sensor (RPS) signal input Idle Analog -0.3 to 5.2V
38 -      
39 Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input Engine Run Pulse High: 4.5-5.5V
Low: -0.3 to 0.5V
Frequency: 7 Hz (Idle), 25 Hz (3, 000 rpm)
40 -      
41 -      
42 -      
43 VS-/IP- (Common Ground for VS, IP) Idle Analog Reference for V_IP, V_N
44 Rc (Compensative Resistance) Idle Analog | Rc-Rc/Rp| <±0.1V
45 Sensor ground Idle DC Max 50 mV
46 Injector (Cylinder #2) [Low] control output Relay OFF DC 71V
Relay ON Max 1.0V
47 -      
48 ETC Motor [+] control output Engine Run Pulse High: Battery Voltage (B+)
Low: Max1.0V
49 -      
50 Throttle Position Sensor (TPS) 2 signal input C.T Analog 4.2-5.0V
W.O.T 3.3-3.8V
51 Sensor power (+5V) IG OFF DC Max 50 mV
IG ON 4.9-5.1V
52 Electrical load signal input Lamp OFF DC Battery Voltage (B+)
Lamp ON Max 50 mV
53 Sensor ground Idle DC Max 50 mV
54 Sensor ground Idle DC Max 50 mV
55 EGR Valve (Feedback signal)      
56 -      
57 -      
58 VS+ (NERNST Cell Voltage) Idle Analog Normal: 450 ± 50 mV
Rich: Max Normal +150 mV
Lean: Min Normal -150 mV
59 Rc/Rp (Pump Cell Voltage) Idle Analog Normal: 450 ± 50 mV
Rich: Max Normal +150 mV
Lean: Min Normal -150 mV
60 Heated Oxygen Sensor [Bank 1/Sensor 2] signal input Idle DC Rich: 0.6 - 1.0V
Lean: Max 0.4V