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Home >> Hyundai >> 2021 >> Veloster Turbo >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 1.6L >> Engine Control Module (ECM) >> Schematic Diagrams >> ECM Terminal And Input/Output Signal >> ECM Terminal Input/Output Signal
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ECM Terminal Input/Output Signal

CONNECTOR DESCRIPTION (A)

Pin No Description Condition Type Level
1 Ignition coil (Cylinder #4) control output Idle Pulse 1st voltage: 370 - 430V
ON voltage: Max. 2.2V
2 Ignition coil (Cylinder #3) control output Idle Pulse 1st voltage: 370 - 430V
ON voltage: Max. 2.2V
3 -      
4 EWGA DC motor output (+)      
5 Injector (Cylinder #3) [Low] control output Relay OFF DC 71V
Relay ON Max. 1.
6 -      
7 Engine Coolant Temperature Sensor (ECTS) signal input Idle Analog 0.270 - 4.77V
8 -      
9 Sensor ground Idle DC -0.3 ~ 0.5V
10 -      
11 -      
12 -      
13 Throttle Position Sensor (TPS) 1 signal input Idle Analog 0.33 - 4.72V
14 Accelerator Position Sensor (APS) 1 signal input Idle Analog 0.674 - 4.379V
15 -      
16 Ignition coil (Cylinder #2) control output Idle Pulse 1st voltage: 370 - 430V
ON voltage: Max. 2.2V
17 Ignition coil (Cylinder #1) control output Idle Pulse 1st voltage: 370 - 430V
ON voltage: Max. 2.2V
18 ETC motor [+] control output Idle Pulse High: Battery voltage
Low: Max. 1.0V
19 EWGA DC motor output (-)      
20 Injector (Cylinder #2) [Low] control output Relay OFF DC 71V
Relay ON Max. 1.0V
21 -      
22 -      
23 -      
24 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input Idle Pulse High: min. 4.8V
Low: Max. 0.6V
25 -      
26 Vehicle speed signal input      
27 Start signal input ON Pulse High: Battery voltage
OFF Max. 2V
28 Brake Test switch signal input ON DC Battery voltage
OFF Max. 2.25V
29 Brake Light switch signal input ON DC Battery voltage
OFF Max. 2.25V
30 -      
31 Injector (Cylinder #2) [High] control output Relay ON/OFF DC 71V
32 Injector (Cylinder #3) [High] control output Relay ON/OFF DC 71V
33 -      
34 Injector (Cylinder #1) [Low] control output Relay OFF DC 71V
Relay ON Max. 1.0V
35 Fuel Pressure Control Valve (FPCV) [High] control output Relay ON/OFF DC 16V
36 Sensor ground Idle DC Max. 50 mV
37 Sensor ground Idle DC Max. 50 mV
38 Alternator electric load signal input (FR) Idle Pulse High: Battery voltage
Low: Max. 1.5V
39 -      
40 -      
41 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] signal input Engine Analog Rich: 0.6 - 1.0V
Running Lean: Max. 0.4V
42 -      
43 -      
44 -      
45 Electric load signal input [Defrost] ON DC Battery voltage
OFF Max. 2.25V
46 Injector (Cylinder #4) [High] control output Relay ON/OFF DC 71V
47 Injector (Cylinder #1) [High] control output Relay ON/OFF DC 71V
48 ETC motor [-] control output ETC motor [-] control output Idle Pulse High: Battery voltage
Low: Max. 1.0V
49 Injector (Cylinder #4) [Low] control output Relay OFF DC 71V
Relay ON Max. 1.0V
50 Fuel Pressure Control Valve (FPCV) [Low] control output Relay OFF DC 16V
Relay ON Max. 1.0V
51 Vehicle speed signal input [Without ABS/ESP] Idle Pulse High: Min. 5.4V
Low: Max. 2.25V
52 Electric Waste Gate Actuator (EWGA) signal input      
53 Sensor ground Idle DC Max. 50 mV
54 Crankshaft position Sensor Signal input      
55 -      
56 Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input Idle Pulse High: min. 4.8V
Low: Max. 0.6V
57 Sensor ground Idle DC Max. 50 mV
58 -      
59 -      
60 -      
CONNECTOR DESCRIPTION (K)

Pin No Description Condition Type Level
1 ECM ground Idle DC Max. 50 mV
2 ECM ground Idle DC Max. 50 mV
3 ECM ground Idle DC Max. 50 mV
4 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage
5 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage
6 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage
7 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage
8 Sensor ground Idle DC Max. 50 mV
9 Sensor ground Idle DC Max. 50 mV
10 Sensor ground Idle DC Max. 50 mV
11 -      
12 -      
13 -      
14 -      
15 -      
16 Sensor ground Idle DC Max. 50 mV
17 -      
18 -      
19 Sensor power (+5V) IG OFF DC Max. 50 mV
IG ON  
20 A/C compressor relay control output Relay OFF DC Battery voltage
Relay ON Max. 1.0V
21 -      
22 CVVT Oil Control Valve (OCV) [Bank 1/Intake] control output Idle Pulse High: Battery voltage
Low: Max. 1.65V
23 -      
24 Cooling fan relay [PWM] control output Relay OFF DC Battery voltage
Relay ON Max. 1.76V
25 -      
26 -      
27 Fuel pump relay control output (Smart key type) Relay OFF DC Battery voltage
Relay ON Max. 1.44V
28 -      
29 Ignition switch signal input IG OFF DC Max. 1.0V
IG ON Battery voltage
30 Sensor ground Idle DC Max. 50 mV
31 -      
32 -      
33 -      
34 -      
35 -      
36 Sensor ground Idle DC -
37 Sensor ground Idle DC Max. 50 mV
38 -      
39 Alternator target voltage data signal output (COM) Idle Pulse High: Battery voltage
Low: Max. 0.6V
40 -      
41 Start relay control output Relay OFF DC Battery voltage
Relay ON Max. 2.64V
42 -      
43 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.9 - 5.1V
44 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.9 - 5.1V
45 -      
46 -      
47 -      
48 -      
49 -      
50 CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] control output Idle Pulse High: Battery voltage
Low: Max. 1.65V
51 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage
52 Sensor ground Idle DC Max. 50 mV
53 -      
54 A/C Pressure Transducer (APT) signal input A/C ON Analog 0.348 - 4.63V
55 -      
56 Intake Temperature Sensor (IATS) signal input Idle Analog 0.209 - 4.756V
57 Manifold Absolute Pressure Sensor (MAPS) signal input Idle Analog 0.6683 - 4.346V
58 Sensor ground Knocking Variable  
Normal Frequency  
59 VS+ (NERNST Cell Voltage) Idle Analog 0 - 5.1V
60 Rc (Compensative Resistance) Idle Analog 0 - 5.1V
61 LIN communication signal input      
62 CCP-CAN [Low] RECESSIVE Pulse 2.0 - 3.0V
DOMINANT 0.5 - 2.25V
63 C-CAN [Low] RECESSIVE Pulse 2.0 - 3.0V
DOMINANT 0.5 - 2.25V
64 -      
65 -      
66 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.9 - 5.1V
67 -      
68 RCV control solenoid valve control output Relay OFF DC Battery voltage
Relay ON Max. 1.76V
69 -      
70 -      
71 Fuel pump relay control output (NON-Smart key type) Relay OFF DC Battery voltage
Relay ON Max. 1.44V
72 -      
73 -      
74 Throttle Position Sensor (TPS) 2 signal input Idle Analog 0.55 - 4.37 V
75 -      
76 Fuel Level signal input Idle Analog 0.193 - 4.0V
77 Accelerator Position Sensor (APS) 2 signal input Idle Analog 0.261 - 2.204 V
78 Rail Pressure Sensor (RPS) signal input Idle Analog 0.43 - 3.46V
79 Knock Sensor (KS) signal input Knocking Variable  
Normal Frequency  
80 VS-/IP- (Common Ground for VS, IP) Idle DC Max. 50 mV
81 Rc/Rp (Pump Cell Voltage) Idle Analog 0 - 5.1V
82 Engine speed signal output      
83 Immobilizer communication line When transmitting Pulse High: Min. 8.4V (at 14V)
Low: Max. 6.44V (at 14V)
84 CCP-CAN [High] RECESSIVE Pulse 2.0 - 3.0V
DOMINANT 2.75 - 4.5V
85 C-CAN [High] RECESSIVE Pulse 2.0 - 3.0V
DOMINANT 2.75 - 4.5V
86 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.9 - 5.1V
87 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.9 - 5.1V
88 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.9 - 5.1V
89 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] heater control output Relay OFF DC Battery voltage
Relay ON Max. 1.65V
90 -      
91 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor2] heater control output Relay OFF DC Battery voltage
Relay ON Max. 1.65V
92 -      
93 -      
94 Purge Control Solenoid Valve (PCSV) control output Relay OFF DC Battery voltage
Relay ON Max. 1.76V