Pin No. | Description | Connected to | Remark |
1 | ECM ground | Chassis ground | |
2 | Power stage ground | Chassis ground | |
3 | Direct battery voltage supply | Battery | |
4 | Ignition coil output 1,4 | Ignition Coil #1, 4 | |
5 | Ignition coil output 2,3 | Ignition Coil #2, 3 | |
6 | CAN LOW | Other control modules (TCM, ABS, etc.) | |
7 | CAN HIGH | Other control modules (TCM, ABS, etc.) | |
8 | HO2S Heater (B1/S1) | HO2S (B1/S1) | Except for LEADED |
9 | HO2S Heater (B1/S2) | HO2S (B1/S2) | EOBD ONLY |
10 | Knock Sensor Input | Knock Sensor | |
11 | CVVT Oil Control Valve output | CVVT Oil Control Valve | |
12 | Not connected | - | |
13 | Not connected | - | |
14 | Battery Voltage Supply after Main Relay | Main Relay | |
15 | Not connected | - | |
16 | Not connected | - | |
17 | Wheel Speed Sensor (-) | Wheel Speed Sensor | |
18 | Wheel Speed Sensor (+) | Wheel Speed Sensor | |
19 | Not connected | - | |
20 | Not connected | - | |
21 | Battery Voltage Supply after Main Relay | Main Relay | |
22 | Battery Voltage Supply after Ignition Key | Ignition Key | |
23 | Injector output (cyl. 4) | Injector (cyl. 4) | |
24 | Injector output (cyl. 1) | Injector (cyl. 1) | |
25 | Spare Sensor supply | Sensors | |
26 | Purge Control Solenoid Valve (PCSV) PWM output | Purge Control Solenoid Valve (PCSV) | |
27 | Crankshaft Position Sensor ground | Crankshaft Position Sensor | |
28 | Not connected | - | |
29 | Crankshaft Position Sensor input | Crankshaft Position Sensor | |
30 | Camshaft Position Sensor ground | Camshaft Position Sensor | |
31 | Engine Coolant Temperature Sensor input | Engine Coolant Temperature Sensor | |
32 | Throttle Position Sensor input | Throttle Position Sensor | |
33 | Not connected | - | |
34 | Not connected | - | |
35 | Not connected | - | |
36 | Not connected | - | |
37 | HO2S (B1/S2) ground | HO2S (B1/S2) | |
38 | Throttle Position Sensor ground | Throttle Position Sensor | |
39 | Vehicle Speed Sensor input | Vehicle Speed Sensor | Without ABS |
Wheel Speed Sensor input | Wheel Speed Sensor | With ABS | |
40 | Not connected | - | |
41 | Not connected | - | |
42 | HO2S (B1/S2) input | HO2S (B1/S2) | EOBD ONLY |
43 | HO2S (B1/S1) input | HO2S (B1/S1) | Except for LEADED |
44 | Sensor power (+5V) | MAPS | |
45 | Throttle Position Sensor supply | Throttle Position Sensor | |
46 | Spare Sensor supply 2 | Sensors | |
47 | Immobilizer Data Line | Immobilizer | With Immobilizer |
48 | MAPS, IATS ground | MAPS, IATS | |
49 | Not connected | - | |
50 | Air Conditioner Compressor Switch input | Triple Switch | |
51 | Air Conditioner Pressure switch input | Triple Switch | |
52 | Oil Temperature Sensor input | Oil Temperature Sensor | |
53 | Not connected | - | |
54 | Knock Sensor ground | Knock Sensor | |
55 | Ignition shield ground | Ignition Coil | |
56 | Intake Air Temperature Sensor input | MAFS, IATS | |
57 | Not connected | - | |
58 | Air Conditioner Request Switch input | Air Conditioner Request Switch | |
59 | HO2S (B1/S1) ground | HO2S (B1/S1) | Except for LEADED |
60 | MAPS signal input | MAPS | |
61 | Injector output (cyl.3) | Injector (cyl.3) | |
62 | Injector output (cyl.2) | Injector (cyl.2) | |
63 | Not connected | - | |
64 | Cooling Fan Relay - High control output | Cooling Fan Relay | |
65 | Cooling Fan Relay - Low control output | Cooling Fan Relay | |
66 | Engine Speed signal output | Tachometer | |
67 | Main Relay control output | Main Relay | |
68 | Air Conditioner Compressor Relay control output | Air Conditioner Compressor Relay | |
69 | Electric Fuel Pump Relay control output | Electric Fuel Pump Relay | |
70 | Malfunction Indicating Lamp (MIL) output | Malfunction Indicating Lamp (MIL) | |
71 | Immobilizer ground | Immobilizer | With Immobilizer |
72 | Camshaft Position Sensor input | Camshaft Position Sensor | |
73 | Engine Coolant Temperature Sensor ground | Engine Coolant Temperature Sensor | |
74 | Throttle Position PWM output | ||
75 | Fuel Consumption signal output | Trip Computer | |
76 | Oil Temperature Sensor ground | Oil Temperature Sensor | |
77 | Diagnostic Data Line (k-Line) | Data Link Conector (DLC) | |
78 | Idle Speed Control Actuator PWM output 2 (CLOSE) | Idle Speed Control Actuator | |
79 | Not connected | - | |
80 | Idle Speed Control Actuator PWM output 1 (OPEN) | Idle Speed Control Actuator | |
81 | Immobilizer Lamp output | Immobilizer | With Immobilizer |
Pin No. | Description | Input, Output Value | Vehicle State | Test Result | |
Type | Range | ||||
1 | ECM ground | Static Signal | 0 ~ 0.5V | Always | 0.3V |
2 | Power stage ground | Static Signal | 0 ~ 0.5V | Always | 0.3V |
3 | Direct battery voltage supply | Static Signal | Vbatt | Others | 12.5 V (Vbatt Level) |
Running | 13.7 V (Vbatt Level) | ||||
4 | Ignition coil output 1,4 | Pulse | ![]() | Engine run | High: 14.03V Low: 0.78~1.13V Peak voltage: 348V Idle : 17.2Hz |
5 | Ignition coil output 2,3 | Pulse | ![]() | Engine run | High: 14.03V Low: 0.78~1.13V Peak voltage: 348V Idle : 17.2Hz |
6 | CAN LOW | DC (PWM) | 2.0 ~ 3.0V | Recessive | |
0.5 ~ 2.25V | Dominant | ![]() | |||
7 | CAN HIGH | DC (PWM) | 2.0 ~ 3.0V | Recessive | |
2.75~4.5V | Dominant | ![]() | |||
8 | HO2S Heater (B1/S1) | PWM | ![]() | Engine run | High: 14.01V Low: 0.4V Frequency:10Hz |
9 | HO2S Heater (B1/S2) | PWM | ![]() | Engine run | High: 14.01V Low: 0.4V Frequency:10Hz |
10 | Knock Sensor Input | Frequency | -0.5 ~ 0.7V | Knocking | 0.3V |
0V | Normal | 0V | |||
11 | CVVT Oil Control Valve output | PWM | ![]() | Engine run | High: 14.01V Low: 0.4V Frequency: 300Hz |
12 | Not connected | ||||
13 | Not connected | ||||
14 | Battery Voltage Supply after Main Relay | DC | Vbatt | IG ON | 12.7V |
0 ~ 0.5V | IG OFF | 0.3V | |||
15 | Not connected | ||||
16 | Not connected | ||||
17 | Wheel Speed Sensor(-) | Sensor signal | Approximately 50rpm: 37Hz, 236mV (Peak to Peak) 100rpm: 76Hz, 376mV (Peak to Peak) 1000rpm: 769Hz, 1.64V (Peak to Peak) | Vehicle run | ![]() |
18 | Wheel Speed Sensor(+) | Sensor signal | Approximately 50rpm: 37Hz, 236mV (Peak to Peak) 100rpm: 76Hz, 376mV (Peak to Peak) 1000rpm: 769Hz, 1.64V (Peak to Peak) | Vehicle run | ![]() |
19 | Not connected | ||||
20 | Not connected | ||||
21 | Battery Voltage Supply after Main Relay | Static Signal | Vbatt | IG ON | 12.7V |
0 ~ 0.5V | IG OFF | 0.3V | |||
22 | Battery Voltage Supply after Ignition Key | Static Signal | Vbatt | IG ON | 12.7V |
0 ~ 0.5V | IG OFF | 0.3V | |||
23 | Injector output (cyl. 4) | Frequency | ![]() | Idle: 6.25Hz 3000rpm: 12.6Hz | High: 14.01V Low: 0.3V Peak voltage: 58V |
24 | Injector output (cyl. 1) | Frequency | ![]() | Idle: 6.25Hz 3000rpm: 12.6Hz | High: 14.01V Low: 0.3V Peak voltage: 58V |
25 | Spare Sensor supply | Static Signal | Vcc | IG ON | 5V |
0 ~ 0.5V | IG OFF | 0.3V | |||
26 | Purge Control Solenoid Valve (PCSV) PWM output | PWM Pulse | ![]() | Inactive Active (after warm up & racing) | High: 14.01V Low: 0.3V Frequency: 20Hz |
27 | Crankshaft Position Sensor ground | Static Signal | 0 ~ 0.5V | Always | 0.2 V |
28 | Not connected | ||||
29 | Crankshaft Position Sensor input | Frequency | ![]() | Idle: 740Hz | 5V |
3000rpm: 3126Hz | 0.3V | ||||
30 | Camshaft Position Sensor ground | Static Signal | Always | ||
31 | Engine Coolant Temperature Sensor input | Analog | -40 ℃ ~ 145 ℃ 4.9V ~ 0.322V | 80℃ [176℉] | 1.25V |
32 | Throttle Position Sensor input | Analog | 0.25 ~ 0.8V | Idle | 0.3V |
4.15 ~ 4.7V | W.O.T | 4.16V | |||
33 | Not connected | ||||
34 | Not connected | ||||
35 | Not connected | ||||
36 | Not connected | ||||
37 | HO2S (B1/S2) ground | Static Signal | 0 ~ 0.5V | Always | 0.3V |
38 | Throttle Position Sensor ground | Static Signal | 0 ~ 0.5V | Always | 0.3V |
39 | Vehicle Speed Sensor input | Pulse | ![]() | Vehicle run | High : 5V Low : 0.9V |
40 | Not connected | ||||
41 | Not connected | ||||
42 | HO2S (B1/S2) input | Analog Pulse | ![]() | 3000rpm After warm up | 0.8V 0.1V Frequency: 1.1Hz |
43 | HO2S (B1/S1) input | Analog Pulse | RICH : 0.6 ~ 1.0 V | Engine run | 0.746 V |
LEAN : Max. 0.4 V | 0.081 V | ||||
44 | Sensor Power (+5V) | Static Signal | 5V | IG ON | 4.9V |
0 ~ 0.5V | IG OFF | 0.4V | |||
45 | Throttle Position Sensor supply | Static Signal | 5V | IG ON | 4.9V |
0 ~ 0.5V | IG OFF | 0.4V | |||
46 | Spare Sensor supply 2 | Static Signal | 5V | IG ON | 5V |
0 ~ 0.5V | IG OFF | 0.3V | |||
47 | Immobilizer Data Line | Pulse | High : Min. 8.5 V Low : Max. 3.5 V | When communicating after IG ON. | 11.625 V 0.187 V |
48 | MAPS, IATS ground | Static Signal | 0 ~ 0.5V | Always | 0.4 V |
49 | Not connected | ||||
50 | Air Conditioner Compressor Switch input | DC | Vbatt | SW ON | 13V |
0 ~ 0.5V | SW OFF | 0.3V | |||
51 | Air Conditioner Pressure switch input | DC | Vbatt | SW ON | 12.9V |
0 ~ 0.5V | SW OFF | 0.4V | |||
52 | Oil Temperature Sensor input | Analog | -40 ℃ ~ 130 ℃ 4.9V ~ 0.4V | 84℃ [183.2 ℉] | 1.29V |
53 | Not connected | ||||
54 | Knock Sensor ground | Static Signal | 0 ~ 0.5V | Always | 0.3V |
55 | Ignition shield ground | Static Signal | 0 ~ 0.5V | Always | 0.3V |
56 | Intake Air Temperature Sensor input | Analog | -40 ℃ ~ 266 ℃ 4.9V ~ 0.34 V | Idle | 3.26 V (33℃ [91.4 ℉]) |
57 | Not connected | ||||
58 | Air Conditioner Request Switch input | DC | Vbatt | SW ON | 12.9V |
0 ~ 0.5 V | SW OFF | 0.4V | |||
59 | HO2S (B1/S1) ground | DC | Max. 50 mV | Idle | 2.5 mV |
60 | MAPS signal input | Analog | 0 ~ 2.0 V | Idle | 1.0V |
1.0 ~ 4.5 V | 3000 rpm | 2.3V | |||
61 | Injector output (cyl.3) | Frequency | ![]() | Idle: 6.25Hz 3000rpm: 12.6Hz | High: 14.01V Low: 0.3V Peak voltage: 58V |
62 | Injector output (cyl.2) | Frequency | ![]() | Idle: 6.25Hz 3000rpm: 12.6Hz | High: 14.01V Low: 0.3V Peak voltage: 58V |
63 | Not connected | ||||
64 | Cooling Fan Relay - High control output | DC | Vbatt | SW OFF | 12.9V |
SW ON | 0.4V | ||||
65 | Cooling Fan Relay - Low control output | DC | Vbatt | SW OFF | 13V |
SW ON | 0.5V | ||||
66 | Engine Speed signal output | Frequency | ![]() | Engine run | High: 10.5V Low: 0.4V Idle: 24.7Hz 3000 rpm: 104.6Hz |
67 | Main Relay control output | DC | 0 ~ 1V | IG ON | 0.9V |
Vbatt | IG OFF | 13.5V | |||
68 | Air Conditioner Compressor Relay control output | DC | 0 ~ 0.5V | A/C ON | 0.2V |
Vbatt | A/C OFF | 12.5V | |||
69 | Fuel Pump Relay control output | DC | Vbatt | IG ON | 13.08V |
0 ~ 0.5V | Idle | 0.3V | |||
70 | Malfunction Indicator Lamp (MIL) output | DC | 0 ~ 0.5V | IG ON | 0.4V |
Vbatt | Vbatt | 13.6V | |||
71 | Immobilizer ground | Static Signal | 0 ~ 0.5V | Always | 0.4V |
72 | Camshaft Position Sensor input | Frequency | ![]() | Idle: 6.3 Hz 3000 rpm: 25 Hz | High: 5V Low: 0.6V |
73 | Engine Coolant Temperature Sensor ground | Static Signal | 0 ~ 0.5V | Always | 0.4V |
74 | Throttle Position PWM output | PWM | ![]() | Engine run | High: 12.75V Low: 0.5V Frequency: 100Hz C.T: 5% duty W.O.T : 90% duty |
75 | Fuel Consumption signal output | PWM | ![]() | Engine run | High: 12.75V Low: 0.5V Frequency: 100Hz |
76 | Oil Temperature Sensor ground | Static Signal | 0 ~ 0.5V | Always | 0.4V |
77 | Diagnosis line (k-line) | Pulse | ![]() | IG ON | High: 14V Low: 0.5V |
78 | Idle Speed Control Actuator PWM output2 | PWM | ![]() | Idle | High : 15V Low : 0.3V Frequency: 250Hz |
79 | Not connected | ||||
80 | Idle Speed Control Actuator PWM output1 | PWM | ![]() | Idle | High : 15V Low : 0.3V Frequency: 250Hz |
81 | Immobilizer Lamp output | DC | 0 ~ 0.5V | IG ON | 0.4V |
Vbatt | Cranking | 13.6V |