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Home >> Hyundai >> 2011 >> Tucson GL, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System >> Engine Control Module (ECM) >> Schematic Diagrams >> ECM Terminal And Input/Output signal
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ECM Terminal And Input/Output signal

Fig 1: Identifying ECM Connector Terminals
G06872174Courtesy of HYUNDAI MOTOR CO.

ECM Terminal Function 

Connector [CHG-A] 

ECM CONNECTOR TERMINAL DESCRIPTIONS (CHG-A)

Pin No. Description Connected to
1 Ignition Coil (Cylinder #4) control output Ignition Coil (Cylinder #4) [With Immobilizer]
Ignition Coil (Cylinder #1) control output Ignition Coil (Cylinder #1) [Without Immobilizer]
2 Shield ground 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 Electrical load signal input Alternator
15 Ground Cruise Control Switch
16 Ignition Coil (Cylinder #2) control output Ignition Coil (Cylinder #2) [With Immobilizer]
Ignition Coil (Cylinder #3) control output Ignition Coil (Cylinder #3) [Without Immobilizer]
17 -  
18 -  
19 -  
20 -  
21 -  
22 -  
23 -  
24 -  
25 -  
26 -  
27 -  
28 -  
29 Brake Switch 1 signal input Brake Switch
30 Cruise Control Switch signal input Cruise Control Switch
31 Ignition Coil (Cylinder #1) control output Ignition Coil (Cylinder #1) [With Immobilizer]
Ignition Coil (Cylinder #4) control output Ignition Coil (Cylinder #4) [Without Immobilizer]
32 -  
33 -  
34 -  
35 -  
36 -  
37 -  
38 -  
39 -  
40 -  
41 -  
42 -  
43 Clutch Switch signal input Clutch Switch
44 Brake Switch 2 signal input Brake Switch
45 Motor [+] control output Variable Charge Motion Actuator (VCMA)
46 Ignition Coil (Cylinder #3) control output Ignition Coil (Cylinder #3) [With Immobilizer]
Ignition Coil (Cylinder #2) control output Ignition Coil (Cylinder #2) [Without Immobilizer]
47 -  
48 -  
49 -  
50 -  
51 -  
52 -  
53 -  
54 -  
55 -  
56 -  
57 -  
58 -  
59 -  
60 Motor [-] control output Variable Charge Motion Actuator (VCMA)

Connector [CHG-K] 

ECM CONNECTOR TERMINAL DESCRIPTIONS (CHG-K)

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 Sensor (FLS) signal input Fuel Level Sensor (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 Sensor feedback signal input Variable Charge Motion Actuator (VCMA)
23 Fuel consumption signal output Trip Computer
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 ABS/ESP Control Unit
41 -  
42 RC (Compensative Resistance) Heated Oxygen Sensor [Bank 1/Sensor 1]
43 Sensor power (+5V) A/C Pressure Transducer (APT), Fuel Tank Pressure Sensor (FTPS), Variable Charge Motion Actuator (VCMA)
44 Sensor ground Variable Charge Motion Actuator (VCMA)
45 -  
46 Alternator (COM) Alternator
47 -  
48 -  
49 -  
50 Variable Intake Solenoid (VIS) Valve control output Variable Intake Solenoid (VIS) Valve
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 Immobilizer Lamp control output Immobilizer Lamp [Without Button Engine Start System]
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 Smart key control module [With Button Engine Start System]
Immobilizer Control [Without Button Engine Start System]
76 LIN communication signal input Battery Sensor
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 Engine speed signal output Power Distribution Module (PDM)
87 A/C Compressor Relay control output A/C Compressor Relay
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]

ECM Terminal Input/Output signal 

Connector [CHG-A] 

ECM CONNECTOR TERMINAL INPUT/OUTPUT SIGNAL DESCRIPTIONS (CHG-A)

Pin No. Description Condition Type Level Test Result
1 Ignition Coil (Cylinder #4) control output [With Immobilizer] Idle Pulse 1st Voltage: 300~400V 416V
ON Voltage: Max. 2.0V 1.4V
Ignition Coil (Cylinder #1) control output [Without Immobilizer] Frequency 5.2Hz
Dwell Time 2.78ms
2 Shield Idle DC Max. 50mV 16.8mV
3 -        
4 -        
5 -        
6 -        
7 -        
8 -        
9 -        
10 -        
11 -        
12 -        
13 Electrical load [Wiper] signal input        
14 Alternator (FR) Idle Pulse HI: Battery Voltage 13.4V
LO: Max 1.5V 40 mV
15 Ground Idle DC Max. 50 mV  
16 Ignition Coil (Cylinder #2) control output [With Immobilizer] Idle Pulse 1st Voltage: 300~400V 416V
ON Voltage: Max. 2.0V 1.3V
Ignition Coil (Cylinder #3) control output [Without Immobilizer] Frequency 5.2Hz
Dwell Time 2.73ms
17 -        
18 -        
19 -        
20 -        
21 -        
22 -        
23 -        
24 -        
25 -        
26 -        
27 -        
28 -        
29 Brake Switch 1 signal input Brake ON DC Battery Voltage  
Brake OFF Max. 0.5 V  
30 Cruise control Switch signal input Cruise ON DC Battery Voltage  
Cruise OFF 4.3 ~ 4.7V  
31 Ignition Coil (Cylinder #1) control output [With Immobilizer] Idle Pulse 1st Voltage: 300~400V 408V
ON Voltage: Max. 2.0V 1.6V
Ignition Coil (Cylinder #4) control output [Without Immobilizer] Frequency 5.2Hz
Dwell Time 2.74ms
32 -        
33 -        
34 -        
35 -        
36 -        
37 -        
38 -        
39 -        
40 -        
41 -        
42 -        
43 Clutch Switch signal input Release DC Max. 0.5V  
Push Battery Voltage  
44 Brake Switch 2 signal input Push DC Max. 0.5V  
Normal Battery Voltage  
45 Motor [+] control output Engine Run PWM High: Battery Voltage  
Low: Max. 0.5V  
Duty: 50%  
46 Ignition Coil (Cylinder #3) control output [With Immobilizer] Idle Pulse 1st Voltage: 300~400V 410V
ON Voltage: Max. 2.0V 1.5V
Ignition Coil (Cylinder #2) control output [Without Immobilizer] Frequency 5.2Hz
Dwell Time 2.78ms
47 -        
48 -        
49 -        
50 -        
51 -        
52 -        
53 -        
54 -        
55 -        
56 -        
57 -        
58 Power Steering Pressure Switch signal input S/W ON DC Max. 0.5V  
S/W OFF Battery Voltage  
59 -        
60 Motor [-] control output Engine Run PWM High: Battery Voltage  
Low: Max. 0.5V  
Duty: 50%  

Connector [CHG-K] 

ECM CONNECTOR TERMINAL INPUT/OUTPUT SIGNAL DESCRIPTIONS (CHG-K)

Pin No. Description Condition Type Level Test Result
1 Power ground Idle DC Max. 50mV  
2 Battery power (B+) IG OFF DC Max. 0.5V 10.2mV
IG ON Battery Voltage 12.02V
3 Power ground Idle DC Max. 50mV 2.8mV
4 Battery power (B+) IG OFF DC Max. 1.0V 3.1mV
IG ON Battery Voltage 12.1V
5 Power ground Idle DC Max. 50mV 1.8mV
6 Battery power (B+) Always (Without Ignition key) Current Below 2.0 mA 0.4 mA
DC Battery Voltage 12.88V
7 -        
8 Fuel Level Sensor (FLS) [MIDDLE] signal input IG ON Analog 0.88 ~ 8.45V  
9 Fuel Level Sensor (FLS) [TOTAL] signal input IG ON Analog 0.88 ~ 8.45V  
10 -        
11 -        
12 Knock Sensor (KS) signal input Knocking Variable Frequency -0.3 ~ 0.3V  
Normal 0 V
13 Sensor ground Idle DC Max. 50mV 30mV
14 Sensor ground Idle DC Max. 50mV 12.4mV
15 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input Idle Pulse HI: VCC or Battery Voltage 5.0V
LO: Max. 0.5V 0.2V
FREQ: 5.36Hz  
16 Sensor ground Idle DC Max. 50mV 29.0mV
17 Crankshaft Position Sensor (CKPS) signal input Idle Pulse HI: VCC or Battery Voltage 5.00V
LO: Max. 0.5V 40mV
FREQ: 600Hz  
18 RC/RP (Pump Cell Voltage) Idle Analog Normal: 450±50 mV
Rich: Max. Normal+150 mV
Lean: Min. Normal-150 mV
 
19 VS+ (NERNST Cell Voltage) Idle Analog Normal: 450±50 mV
Rich: Max. Normal+150 mV
Lean: Min. Normal-150 mV
 
20 VS-/IP- (Common Ground for VS, IP) Idle Analog Reference for V_IP, V_N  
21 Sensor feedback signal input Idle DC 0.5 ~ 4.5V  
22 -        
23 Fuel consumption signal output Idle Pulse HI: Battery Voltage 13.7V
LO: Max. 0.5V 0V
Frequency 3.33Hz
Pulse Width 500μs
24 -        
25 Injector (Cylinder #1) control output Idle Pulse HI: Battery Voltage 13.8V
LO: Max. 1.0V 200mV
Vpeak: Max. 80V 54.1V
Frequency 5.21Hz
Dwell Time 2.74ms
26 Injector (Cylinder #3) control output Idle Pulse HI: Battery Voltage 13.9V
LO: Max. 1.0V 170mV
Vpeak: Max. 80V 53.9V
Frequency 5.18Hz
Dwell Time 2.73ms
27 Injector (Cylinder #4) control output Idle Pulse HI: Battery Voltage 14V
LO: Max. 1.0V 160mV
Vpeak: Max. 80V 54.3V
Frequency 5.24Hz
Dwell Time 2.70ms
28 Injector (Cylinder #2) control output Idle Pulse HI: Battery Voltage 14.1V
LO: Max. 1.0V 160mV
Vpeak: Max. 80V 53.9V
Frequency: 5.21Hz 5.21Hz
Dwell Time: 2.73ms 2.74ms
29 -        
30 Sensor power (+5V) IG OFF DC Max. 0.5V 0mV
IG ON 4.9 ~ 5.1V 4.98V
31 Manifold Absolute Pressure Sensor (MAPS) signal input Idle Analog 0.8 ~ 1.6V 1.37V
32 Throttle Position Sensor (TPS) 2 signal input C.T Analog 4.2 ~ 5.0V 4.52V
W.O.T 3.3 ~ 3.8V 3.68V
33 Engine Coolant Temperature Sensor (ECTS) signal input Idle Analog 0.5 ~ 4.5V 1.02V
34 Sensor ground Idle DC Max. 50mV 8mV
35 Accelerator Position Sensor (APS) 2 signal input C.T Analog Max. 1.0V 0.4V
W.O.T 1.5 ~ 3.0V 1.9V
36 Sensor power (+5V) IG OFF DC Max. 0.5V 5mV
IG ON 4.9 ~ 5.1V 5.02V
37 Sensor ground Idle DC Max. 50mV 11mV
38 -        
39 Sensor ground Idle DC Max. 50mV 11mV
40 Vehicle speed signal input Vehicle Run Pulse HI: Min. 4.5V 5.0V
LO: Max. 0.5V 0V
Frequency 46.9Hz at Idle
Duty (-) 50.4% at Idle
41 -        
42 RC (Compensative Resistance) Idle Analog |RC-RC/RP|<±0.1V  
43 Sensor power (+5V) IG OFF DC Max. 0.5V  
IG ON 4.9 ~ 5.1V  
44 Sensor ground Always DC 0 ~ 0.5V 5mV
45 -        
46 Alternator (COM)        
47 -        
48 -        
49 -        
50 Variable Intake Solenoid (VIS) Valve control output Active DC Max. 1.0V 316mV
Inactive Battery Voltage 14.0V
51 Battery power (B+) IG OFF DC Max. 1.0V 3.1mV
IG ON Battery Voltage 12.3V
52 Fuel Tank Pressure Sensor (FTPS) signal input Idle Analog 0.4 ~ 4.6V  
53 Intake Air Temperature Sensor (IATS) signal input Idle Analog 0 ~ 5.0V 2.55V
54 A/C Pressure Transducer (APT) signal input Idle DC 0.4 ~ 4.6V A/C OFF: 1.29V
A/C ON: 2.01V
55 -        
56 -        
57 Sensor ground Idle DC Max. 50mV 11mV
58 -        
59 Sensor ground Idle DC Max. 50mV 6mV
60 Sensor power (+5V) IG OFF DC Max. 0.5V 10mV
IG ON 4.9 ~ 5.1V 5.02V
61 Sensor ground Idle DC Max. 50mV 30mV
62 Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input Idle Pulse HI: VCC or Battery Voltage 5.0V
LO: Max. 0.5V 0.2V
Frequency 5.2Hz
63 Sensor power (+5V) IG OFF DC Max. 0.5V 0V
IG ON 4.9 ~ 5.1V 5.03V
64 Main Relay control output Relay OFF DC Battery Voltage 12.3V
Relay ON Max. 1.0V 730mV
65 Cooling Fan Relay [Low] control output A/C ON Pulse HI: Battery Voltage 10.4V
LO: 0 ~ 0.5V 60mV
66 CVVT Oil control (OCV) Valve [Bank 1/Intake] control output Idle Pulse HI: Battery Voltage 15.0V
LO: Max. 1.0V 120mV
Frequency 300Hz
Duty (+) 84.70%
67 Purge control Solenoid Valve (PCSV) control output Inactive Active Pulse HI: Battery Voltage 14.3V
LO: Max. 1.0V 80mV
Vpeak: Max. 70V 57.0V
Frequency 16Hz
68 CVVT Oil control (OCV) Valve [Bank 1/Exhaust] control output Idle Pulse HI: Battery Voltage 13.5V
LO: Max. 1.0V 100mV
Vpeak: Max.70V 13.5V
Frequency 300Hz
69 Immobilizer Lamp control output Lamp OFF DC HI: Battery Voltage 13.2V
Lamp ON LO: Max. 2.0V 40mV
70 Fuel Pump Relay control output Relay OFF DC Battery Voltage 12.8V
Relay ON Max. 1.0V 40mV
71 ETC Motor [+] control output Idle Pulse HI: Battery Voltage 13.4V
LO: Max. 1.0V 0V
72 ETC Motor [-] control output Idle Pulse HI: Battery Voltage 13.3V
LO: Max. 1.0V 0V
73 Sensor ground Idle DC Max. 50mV  
74 Sensor ground Idle DC Max. 50mV 7mV
75 Immobilizer communication line During communicating Pulse HI: Min. 8.5V 11.8V
LO: Max. 3.5V 1.0V
76 LIN communication signal input        
77 CAN [High] Recessive Pulse 2.0 ~ 3.0V 2.58V
Dominant 2.75~4.5V 3.54V
78 CAN [Low] Recessive Pulse 2.0 ~ 3.0V 2.64V
Dominant 0.5~2.25V 1.52V
79 -        
80 Throttle Position Sensor (TPS) 1 signal input C.T Analog 0.3 ~ 0.9 V 0.65V
W.O.T 1.5 ~ 3.0 V 1.63V
81 -        
82 Accelerator Position Sensor (APS) 1 signal input C.T Analog Max. 1.0V 0.8V
W.O.T Min. 4.0V 4.0V
83 Sensor ground Idle DC Max. 50 mV 12mV
84 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] signal input Idle DC Rich: 0.6 ~ 1.0V 74 mV
Lean: Max. 0.4V 70mV
85 Sensor ground Idle DC Max. 50 mV 10 mV
86 Engine speed signal output Idle Pulse HI: Battery Voltage 14.0V
LO: Max. 0.5V 60mV
Frequency: 20~26Hz 21Hz
Duty (+) 50%
87 A/C Compressor Relay control output A/C OFF DC Battery Voltage 14.3 V
A/C ON Max. 1.0V 102mV
88 Cooling Fan Relay [High] control output Relay OFF DC Battery Voltage  
Relay ON Max. 1.0V  
89 -        
90 -        
91 Canister Close Valve (CCV) control output Active Inactive Pulse High: Battery Voltage 13.0V
Low: Max. 1.0V 20mV
V peak: Max. 70V 57.7V
92 Malfunction Indicator Lamp (MIL) control output Lamp OFF DC Battery Voltage 13.8V
Lamp ON Max. 1.0V 54mV
93 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] Heater control output Engine Run Pulse HI: Battery Voltage 14.4V
LO: Max. 1.0V 0.36V
Frequency 10.0Hz
Duty (+) 58.30%
94 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] Heater control output Engine Run Pulse HI: Battery Voltage 14.0V
LO: Max. 1.0V 0.31V
Frequency 7.68Hz
Duty (+) 53.9%