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Home >> Hyundai >> 2012 >> Equus Signature >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 5.0L >> 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 [CTG-AG]

Pin No. Description Condition Type Level Test Result
1 Ignition Coil (Cylinder #3) control output Idle Pulse 1st Voltage: 300~400V 360V
ON Voltage: Max. 2V 1.5V
OFF Voltage: battery voltage 13.3V
2 Ignition Coil (Cylinder #6) control output Idle Pulse 1st Voltage: 300~400V 360V
ON Voltage: Max. 2V 1.5V
OFF Voltage: battery voltage 13.3V
3 Engine speed signal output Idle Pulse High: VCC 3.6V
Low: Max. 1.5V 0V
  28Hz at Idle 165Hz at 3,000rpm
4 Injector (Cylinder #2) control output Idle Pulse High: battery voltage 13.3V
Low: Max. 1.0V 1.5V
Vpeak: Max.80V 76V
5 Injector (Cylinder #1) control output Idle Pulse High: battery voltage 13.3V
Low: Max. 1.0V 1.5V
Vpeak: Max.80V 76V
6 Fuel Tank Pressure Sensor (FTPS) signal input Idle DC 0.2 ~ 4.8V 25V at IG ON
7 Fuel Level Sensor (FLS) [TOTAL] signal input IG ON DC 0V ~ battery voltage A/C ON: 1.5 ~2.0V
8 A/C Pressure Transducer (APT) signal input A/C OFF DC 0 ~ 5.0 V A/C ON: 1.5 ~2.0V
A/C ON
9 Ground Idle DC Max. 50 mV 3mV
10 Sensor ground Idle DC Max. 50 mV 4mV
11 Sensor ground Idle DC Max. 50 mV 2.6mV
12 Crankshaft Position Sensor (CKPS) [High] signal input Idle SINE WAVE Vp_p: Min.1.0V 16.5V (580Hz)
13 - - - - -
14 Main Relay control output Relay OFF DC battery voltage 13.3V
Relay ON Max. 1.0V 0.3V
15 Injector (Cylinder #6) control output Idle Pulse High: battery voltage 13.2V
Low: Max. 1.0V 0.3V
Vpeak: Max.80V 76V
16 Ignition Coil (Cylinder #2) control output Idle Pulse 1st Voltage: 300~400V 370V
ON Voltage: Max. 2V 1.5V
OFF Voltage: battery voltage 13.3V
17 Ignition Coil (Cylinder #4) control output Idle Pulse 1st Voltage: 300~400V 370V
ON Voltage: Max. 2V 1.5V
OFF Voltage: battery voltage 13.3V
18 - - - - -
19 Injector (Cylinder #7) control output Idle Pulse High: battery voltage 13.2V
Low: Max. 1.0V 0.3V
Vpeak: Max.80V 71V
20 Purge control Solenoid Valve (PCSV) control output Active Inactive Pulse High: battery voltage 13.2V
Low: Max. 1.0V 0.3V
21 Canister Close Valve (CCV) control output Active Inactive Pulse High: battery voltage 13.5V
Low: Max. 1.0V 0.2V
22 Power Steering Pressure Sensor (PSPS) signal input Neutral DC 0 ~ 5.0V -
Full-turn
23 - - - - -
24 Sensor ground Idle DC Max. 50 mV 9.2mV
25 Sensor ground Idle DC Max. 50 mV 9.2mV
26 Cruise control Switch signal input ALL S/W OFF DC 4.3 ~ 4.7 V 9.41V
MAIN S/W battery voltage 13.7V
SET S/W 1.3 ~ 1.7 V 1.45V
RESUME S/W 2.8 ~ 3.2 V 2.92V
CANCEL S/W -0.2 ~ 0.2 V 15mV
27 Crankshaft Position Sensor (CKPS) [Low] signal input Idle SINE WAVE Vp_p: Min.1.0V 7.1V (610Hz)
28 Sensor ground Idle DC Max. 50 mV 9.2mV
29 Fuel Level Sensor (FLS) [MIDDLE] signal input IG ON DC 0 ~ battery voltage -
30 Injector (Cylinder #4) control output Idle Pulse High: battery voltage 13.53V
Low: Max. 1.0V 227mV
Vpeak: Max.80V 73.45V
31 Ignition Coil (Cylinder #5) control output Idle Pulse 1st Voltage: 300~400V 387V
ON Voltage: Max. 2V 1.26V
OFF Voltage: battery voltage 14.1V
32 Ignition Coil (Cylinder #8) control output Idle Pulse 1st Voltage: 300~400V 387mV
ON Voltage: Max. 2V 1.29V
OFF Voltage: battery voltage 14.1V
33 Injector (Cylinder #8) control output Idle Pulse High: battery voltage 14.2V
Low: Max. 1.0V 0.1V
Vpeak: Max.80V 55.7V
34 CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] control output Idle Pulse High: battery voltage 14.9V
Low: Max. 1.0V 0.08V
35 CVVT Oil Control Valve (OCV) [Bank 1/Intake] control output Idle Pulse High: battery voltage 14.9V
Low: Max. 1.0V 0.08V
36 - - - - -
37 - - - - -
38 Fuel Pump Relay control output Relay OFF DC battery voltage 13.1V
Relay ON Max. 1.0V 0.1V
39 Manifold Absolute Pressure Sensor (MAPS) signal input Idle Analog 0.6683 ~ 4.346V -
40 - - - - -
41 Sensor ground Idle DC Max. 50 mV 0mV
42 - - - - -
43 Sensor ground Idle DC Max. 50 mV 0mV
44 2nd CAN [Low] Recessive Pulse 2.0 ~ 3.0 V 2.60V
Dominant 0.5~2.25 V 1.59V
45 Injector (Cylinder #3) control output Idle Pulse High: battery voltage 14.2V
Low: Max. 1.0V 0.1V
Vpeak: Max.80V 55.7V
46 Ignition Coil (Cylinder #1) control output Idle Pulse 1st Voltage: 300~400V 260V
ON Voltage: Max. 2V 1.9V
OFF Voltage: battery voltage 14.1V
47 Ignition Coil (Cylinder #7) control output Idle Pulse 1st Voltage: 300~400V 260V
ON Voltage: Max. 2V 1.9V
OFF Voltage: battery voltage 14.1V
48 ETC Motor [+] control output Idle Pulse High: battery voltage 14.1V
LO: Max. 1.0V 0.1V
49 - - - - -
50 ETC Motor [-] control output Idle Pulse High: battery voltage 14.3V
LO: Max. 1.0V 0.1V
51 Malfunction Indicator Lamp (MIL) control output Lamp OFF DC battery voltage 13.7V
Lamp ON Max. 1.0V 0V
52 - - - - -
53 - -   - -
54 Cooling Fan [PWM] control output A/C ON Pulse High: battery voltage 10.1V
Low: Max. 0.5V 0V
55 - - - - -
56 Heated Oxygen Sensor (HO2S) [Bank 2/Sensor 1] signal input Racing DC Rich: 0.6~1.0V 0.8V
Lean: 0 ~ 0.4V 0.1V
57 - - - - -
58 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] signal input Racing DC Rich: 0.6~1.0V 0.8V
Lean: 0 ~ 0.4V 0.1V
59 2nd CAN [High] Recessive Pulse 2.0 ~ 3.0 V 2.60V
Dominant 0.5 ~2.25 V 1.59V
60 Injector (Cylinder #5) control output Idle Pulse High: battery voltage 14.2V
Low: Max. 1.0V 0.1V
Vpeak: Max.80V 55.7V
CONNECTOR [CTG-KG]

Pin No. Description Condition Type Level Test Result
1 Ignition Coil ground Idle DC Max. 50 mV 0mV
2 Electronic power ground Idle DC Max. 50 mV 0mV
3 Heated Oxygen Sensor (HO2S) [Bank 2/Sensor 1] Heater control output Engine Run Pulse High: battery voltage 13.6V
Low: Max. 1.0V 0.2V
4 ECM ground Idle DC Max. 50 mV 0mV
5 Battery power (B+) IG OFF DC Max. 1.0V 0V
IG ON battery voltage 12.2V
6 Battery power (B+) IG OFF DC Max. 1.0V 0V
IG ON battery voltage 12.2V
7 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] Heater control output Engine Run Pulse High: battery voltage 13.83V
Low: Max. 1.0V 495mV
8 LIN (Local Interconnect Network) Serial Bus Line - - - -
9 Knock Sensor (KS) [Bank 1/Front] [High] signal input Knocking Variable Frequency -0.3 ~ 0.3 V  
Normal 0 V  
10 Knock Sensor (KS) [Bank 1/Rear] [High] signal input Knocking Variable Frequency -0.3 ~ 0.3 V  
Normal 0 V  
11 Sensor ground Idle DC Max. 50 mV 7mV
12 Sensor ground Idle DC Max. 50 mV 7mV
13 Rail Pressure Sensor (RPS) signal input Idle Analog 0.43 ~ 3.46V -
14 Throttle Position Sensor (TPS) 1 signal input C.T Analog 0.3 ~ 0.9V 0.42V
W.O.T 1.5 ~ 3.0V 1.88V
15 Heated Oxygen Sensor (HO2S) [Bank 2/Sensor 2] signal input Racing DC Rich: 0.6~1.0V 0.7V
Lean: 0 ~ 0.4V 0.3V
16 - - - - -
17 - - - - -
18 - - - - -
19 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input Idle Pulse High: Vcc or battery voltage 4.8V
Low: Max. 0.5V 0V
  20Hz at Idle
20 - - - - -
21 Start Relay signal input Cranking DC battery voltage 13.5V
Otherwise Max. 0.5V 0.3V
22 Sensor ground Idle DC Max. 50 mV 9mV
23 Sensor power (+5V) IG OFF DC Max. 0.5V 0V
IG ON 5.0V 5.0V
24 Sensor power (+5V) IG OFF DC Max. 0.5V 0V
IG ON 5.0V 5.0V
25 Battery power (B+) IG OFF DC Max. 1.0 V 0V
IG ON battery voltage 12.4V
26 Alternator Voltage Setpoint Idle Pulse High: Vcc 6.0V
Low: Max. 1.5V 0V
27 - - - - -
28 - - - - -
29 - - - - -
30 Sensor ground Idle DC Max. 50 mV 5mV
31 Knock Sensor (KS) [Bank 1/Front] [Low] signal input Knocking Variable Frequency -0.3 ~ 0.3 V  
Normal 0 V  
32 Knock Sensor (KS) [Bank 1/Rear] [Low] signal input Knocking Variable Frequency -0.3 ~ 0.3 V  
Normal 0 V  
33 Sensor ground Idle DC Max. 50 mV 6mV
34 - - - - -
35 Intake Air Temperature Sensor (IATS) signal input Idle Analog 0.2V ~ 4.8V 1.34V
36 Engine Coolant Temperature Sensor (ECTS) signal input Idle DC 0.5V ~ 4.8V 0.77V
37 Accelerator Piston Sensor (APS) 1 signal input C.T Analog 0.58 ~ 0.93V 0.74V
W.O.T 3.85 ~ 4.35V 4.2V
38 Throttle Position Sensor (TPS) 2 signal input C.T Analog Min. 2.8V 2.96V
W.O.T Max. 1.8V 1.63V
39 Electronic Load Signal input - - - -
40 Brake Switch 2 signal input Release DC battery voltage 13.6V
Push Max. 0.5V 0.1V
41 Brake Switch 1 signal input Release DC Max. 0.5V 0.05V
Push battery voltage 13.7V
42 - - - - -
43 - - - - -
44 A/C "SELECT" Switch signal input A/C S/W OFF DC Max. 0.5V 0V
A/C S/W ON battery voltage 11.4V
45 Sensor power (+5V) IG OFF DC Max. 0.5V 0V
IG ON 5V 5.0V
46 Sensor power (+5V) IG OFF DC Max. 0.5V 0V
IG ON 5V 5.0V
47 - - - - -
48 Start Relay control output Otherwise DC battery voltage 12.0V
Cranking Max. 1.0V 0V
49 Sensor ground Idle DC Max. 50 mV 0.2mV
50 Fuel Pump Resister Relay output - - - -
51 Heated Oxygen Sensor (HO2S) [Bank 2/Sensor 2] Heater control output Engine Run Pulse High: battery voltage 13.4V
Low: Max. 1.0V 0.2V
52 Knock Sensor (KS) [Bank 2/Front] [Low] signal input Knocking Variable Frequency -0.3 ~ 0.3 V  
Normal 0 V  
53 Knock Sensor (KS) [Bank 2/Rear] [Low] signal input Knocking Variable Frequency -0.3 ~ 0.3 V  
Normal 0 V  
54 Sensor ground Idle DC Max. 50 mV 5mV
55 Sensor ground Idle DC Max. 50 mV 5mV
56 - - - - -
57 - - - - -
58 Heated Oxygen Sensor (HO2S) [Bank 2/Sensor 2] signal input Racing DC Rich: 0.6~1.0V 0.7V
Lean: 0 ~ 0.4V 0.28V
59 Sensor ground Idle DC Max. 50 mV 5mV
60 Fuel supply power #2 [ON] signal output Idle Pulse High: battery voltage -
Low: Max. 1.0V  
61 - - - - -
62 Camshaft Position Sensor (CMPS) [Bank 2/Intake] signal input Idle Pulse High: Vcc or battery voltage 4.95V
Low: Max. 0.5V 0V
  20Hz at Idle
63 - - - - -
64 Vehicle speed signal input Vehicle Run Pulse High: Min. 5.0V 11.0V
Low: Max. 1.0V 0V
65 Sensor power (+5V) IG OFF DC Max. 0.5V 0V
IG ON 2.95 ~ 3.05V 3.3V
66 CAN [Low] Recessive Pulse 2.0 ~ 3.0 V 2.5V
Dominant 0.5~2.25 V 1.5V
67 Immobilizer communication line When transmitting Pulse High: Min. battery voltage X 80% 10.99V
Low: Max. battery voltage X 20% 787.5mV
When receiving High: Min. battery voltage X 70% 10.99V
Low: Max. battery voltage X 30% 587.5mV
68 Fuel supply power #1 [ON] signal output Idle Pulse High: battery voltage -
Low: Max. 1.0V  
69 Fuel supply power #2 [SEL 1] signal output IG ON Pulse High: battery voltage -
Low: Max. 1.0V  
70 Fuel supply power #1 [SEL 0] signal output IG ON Pulse High: battery voltage -
Low: Max. 1.0V  
71 - - - - -
72 - - - - -
73 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] Heater control output Engine Run Pulse High: battery voltage 13.5V
Low: Max. 1.0V 0.2V
74 Knock Sensor (KS) [Bank 2/Front] [High] signal input Knocking Variable Frequency -0.3 ~ 0.3 V  
Normal 0 V  
75 Knock Sensor (KS) [Bank 2/Rear] [High] signal input Knocking Variable Frequency -0.3 ~ 0.3 V  
Normal 0 V  
76 Sensor ground Idle DC Max. 50 mV 7mV
77 - - - - -
78 Sensor ground Idle DC Max. 50 mV 7mV
79 - - - - -
80 - - - - -
81 Accelerator Position Sensor (APS) 2 signal input C, T Analog 0.29 ~ 0.46 V 0.42V
W.O.T 1.93 ~ 2.18V 2.1V
82 - - - - -
83 Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input Idle Pulse High: Vcc or battery voltage 4.9V
Low: Max. 0.5V 0.05V
  20Hz at Idle
84 Alternator "FR" signal input Idle Pulse High: battery voltage 12.2V
Low: Max 1.5 V 0.2V
85 Camshaft Position Sensor (CMPS) [Bank 2/Exhaust] signal input Idle Pulse High: Vcc or battery voltage 4.9V
Low: Max. 0.5V 0.05V
  20Hz at Idle
86 Battery Power (B+) Always DC battery voltage 12.6V
87 - - - - -
88 CAN [High] Recessive Pulse 2.0 ~ 3.0 V 2.5V
Dominant 2.75~4.5 V 3.5V
89 Fuel supply power #1 [SEL 1] signal output IG ON Pulse High: battery voltage -
Low: Max. 1.0V  
90 CVVT Oil control Valve (OCV) [Bank 2/Intake] control output Idle Pulse High: battery voltage 13.7V
Low: Max. 1.0V 0.28V
91 - - - - -
92 CVVT Oil control Valve (OCV) [Bank 2/Exhaust] control output Idle Pulse High: battery voltage 13.7V
Low: Max. 1.0V 0.28V
93 A/C Compressor control output A/C OFF DC battery voltage 12.5V
A/C ON Max. 1.0V 0.11V
94 Fuel supply power #2 [SEL 0] signal output IG ON Pulse High: battery voltage -
Low: Max. 1.0V  
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