Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Physical Values
- ECM is located in the engine room left side near battery.
- Specification data are reference values.
- Pulse signal is measured by CONSULT.
| Terminal No. | Description | Condition | Value (Approx.) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| + | - | Signal name | Input/Output | ||||||||||||
| 1 (R) | 128 (B) | Throttle control motor power supply | Input | [Ignition switch: ON] | BATTERY VOLTAGE (11 - 14 V) | ||||||||||
| 2 (G) | 128 (B) | Throttle control motor (Close) | Output | [Ignition switch: ON]
|
0 - 14 V(1) | ||||||||||
| 3 (Y) | 128 (B) | A/F sensor 1 heater (bank 2) | Output | [Engine is running]
(More than 140 seconds after starting engine) |
2.9 - 8.8 V(1) | ||||||||||
| 4 (LG) | 107 (W) | Engine oil pressure sensor | Input | [Engine is running]
|
1.3 V(1) | ||||||||||
[Engine is running]
|
2.7 V(1) | ||||||||||||||
| 5 (W) | 128 (B) | Throttle control motor (Open) | Output | [Ignition switch: ON]
|
0 - 14 V(1) | ||||||||||
[Ignition switch: ON]
|
0 - 14 V(1) | ||||||||||||||
| 6 (BR) | 128 (B) | A/F sensor 1 heater (bank 1) | Output | [Engine is running]
|
2.9 - 8.8 V(1) | ||||||||||
| 9 (LG) | 128 (B) | Ignition signal No. 3 | Output | [Engine is running]
|
0 - 0.2 V(1) | ||||||||||
| 10 (LG) | Ignition signal No. 2 | ||||||||||||||
| 11 (LG) | Ignition signal No. 1 | ||||||||||||||
| 13 (LG) | Ignition signal No. 6 | [Engine is running]
|
0.1 - 0.4 V(1) | ||||||||||||
| 14 (LG) | Ignition signal No. 5 | ||||||||||||||
| 15 (LG) | Ignition signal No. 4 | ||||||||||||||
| 12 (B) | - | ECM ground | - | - | - | ||||||||||
| 16 (B) | - | ECM ground | - | - | - | ||||||||||
| 19 (R) | - | Sensor ground (Throttle position sensor) | - | - | - | ||||||||||
| 22 (B) | 128 (B) | Throttle position sensor 1 | Input | [Ignition switch: ON]
|
More than 0.36 V | ||||||||||
[Ignition switch: ON]
|
Less than 4.75 V | ||||||||||||||
| 23 (W) | 128 (B) | Throttle position sensor 2 | Input | [Ignition switch: ON]
|
Less than 4.75 V | ||||||||||
[Ignition switch: ON]
|
More than 0.36 V | ||||||||||||||
| 24 (G) | 19 (R) | Sensor power supply (Throttle position sensor) | - | [Ignition switch: ON] | 5 V | ||||||||||
| 26 (GR) | 128 (B) | Power supply for ECM (Backup) | Input | [Ignition switch: OFF] | BATTERY VOLTAGE (11 - 14 V) | ||||||||||
| 31 (V) | 128 (B) | ECM relay (Self shut-off) | Output |
|
0 - 1.5 V | ||||||||||
| [Ignition switch: OFF] More than a few seconds after turning ignition switch OFF | BATTERY VOLTAGE (11 - 14 V) | ||||||||||||||
| 33 (Y) | 128 (B) | Fuel injector No. 1 | Output | [Engine is running]
|
BATTERY VOLTAGE (11 - 14 V)(1) | ||||||||||
| 44 (V) | Fuel injector No. 2 | ||||||||||||||
| 45 (V) | Fuel injector No. 6 | ||||||||||||||
| 46 (Y) | Fuel injector No. 5 | [Engine is running]
|
BATTERY VOLTAGE (11 - 14 V)(1) | ||||||||||||
| 47 (V) | Fuel injector No. 4 | ||||||||||||||
| 48 (Y) | Fuel injector No. 3 | ||||||||||||||
| 34 (G) | 128 (B) | Throttle control motor relay | Output | [Ignition switch: ON β OFF] | 0 - 1.0 V β BATTERY VOLTAGE (11 - 14 V) β 0 V | ||||||||||
| [Ignition switch: ON] | 0 - 1.0 V | ||||||||||||||
| 37 (SB) | 128 (B) | Heated oxygen sensor 2 heater (bank 1) | Output | [Engine is running] Engine speed: Below 3, 600 RPM after the following conditions are met
|
10 V(1) | ||||||||||
|
BATTERY VOLTAGE (11 - 14 V) | ||||||||||||||
| 38 (BR) | 128 (B) | Electronic controlled engine mount control solenoid valve | Output | [Engine is running] Idle speed | 0 - 1.0 V | ||||||||||
| [Engine is running] Engine speed: More than 950 RPM | BATTERY VOLTAGE (11 - 14 V) | ||||||||||||||
| 39 (BR) | 128 (B) | VIAS control solenoid valve 1 | Output | [Engine is running]
|
BATTERY VOLTAGE (11 - 14 V) | ||||||||||
[Engine is running]
|
BATTERY VOLTAGE (11 - 14 V) β 0 - 1.0 V β BATTERY VOLTAGE (11 - 14 V) |
||||||||||||||
| 40 (BR) | 128 (B) | VIAS control solenoid valve 2 | Output | [Engine is running]
|
BATTERY VOLTAGE (11 - 14 V) | ||||||||||
[Engine is running]
|
BATTERY VOLTAGE (11 - 14 V) β 0 - 1.0 V β BATTERY VOLTAGE (11 - 14 V) |
||||||||||||||
| 41 (SB) | 128 (B) | Heated oxygen sensor 2 heater (bank 2) | Output | [Engine is running] Engine speed: Below 3, 600 RPM after the following conditions are met
|
10 V(1) | ||||||||||
|
Engine speed: Above 3, 600 RPM BATTERY VOLTAGE (11 - 14 V) |
||||||||||||||
| 42 (BR) | 128 (B) | EVAP canister purge volume control solenoid valve | Output | [Engine is running]
|
BATTERY VOLTAGE (11 - 14 V)(1) | ||||||||||
| [Engine is running] Engine speed: approximately 2, 000 RPM (More than 100 seconds after starting engine) |
BATTERY VOLTAGE (11 - 14 V)(1) | ||||||||||||||
| 43 (W) | 128 (B) | Fuel pump relay | Output |
|
0 - 1.0 V | ||||||||||
| 54 (LG) | 84 (Y) | Sensor power supply [Crankshaft position sensor (POS)] | - | [Ignition switch: ON] | 5 V | ||||||||||
| 55 (BR) | 128 (B) | Intake valve timing control solenoid valve (bank 1) | Output | [Engine is running]
|
BATTERY VOLTAGE (11 - 14 V) | ||||||||||
[Engine is running]
|
7 - 12 V(1) | ||||||||||||||
| 56 (Y) | 128 (B) | Intake valve timing control solenoid valve (bank 2) | Output | [Engine is running]
|
BATTERY VOLTAGE (11 - 14 V) | ||||||||||
[Engine is running]
|
7 - 12 V(1) | ||||||||||||||
| 57 (L) | 128 (B) | Heated oxygen sensor 2 (bank 1) | Input | [Engine is running] Revving engine from idle to 3, 000 RPM quickly after the following conditions are met
|
0 - 1.0 V | ||||||||||
| 58 (L) | 128 (B) | Heated oxygen sensor 2 (bank 2) | Input | [Engine is running] Revving engine from idle to 3, 000 RPM quickly after the following conditions are met
|
0 - 1.0 V | ||||||||||
| 59 (B) | - | Sensor ground (Heated oxygen sensor 2) | - | - | - | ||||||||||
| 63 (SB) | 64 (V) | Refrigerant pressure sensor | Input | [Engine is running]
|
1.0 - 4.0 V | ||||||||||
| 64 (V) | - | Sensor ground (Refrigerant pressure sensor) | - | - | - | ||||||||||
| 66 (W) | 68 (G) | Battery current sensor | Input | [Engine is running]
|
2.6 - 3.5 V | ||||||||||
| 67 (Y) | 68 (G) | Battery temperature sensor | Input | [Engine is running] | 0 - 4.8 V Output voltage varies with battery temperature. | ||||||||||
| 68 (G) | - | Sensor ground (Battery current sensor) | - | - | - | ||||||||||
| 69 (B) | 128 (B) | A/F sensor 1 (bank 1) | Input | [Engine is running]
|
2.2 V Output voltage varies with air fuel ratio. | ||||||||||
| 70 (BR) | 76 (B) | Engine coolant temperature sensor | Input | [Engine is running] | 0 - 4.8 V Output voltage varies with engine coolant temperature. | ||||||||||
| 73 (W) | 128 (B) | A/F sensor 1 (bank 1) | Input | [Ignition switch: ON] | 1.8 V | ||||||||||
| 74 (V) | 80 (BR) | Intake air temperature sensor | Input | [Engine is running] | 0 - 4.8 V Output voltage varies with intake air temperature. | ||||||||||
| 75 (LG) | 68 (G) | Sensor power supply (Battery current sensor) | - | [Ignition switch: ON] | 5 V | ||||||||||
| 76 (B) | - | Sensor ground (Engine coolant temperature sensor, engine oil temperature sensor) | - | - | - | ||||||||||
| 77 (B) | 128 (B) | A/F sensor 1 (bank 2) | Input | [Engine is running]
|
2.2 V Output voltage varies with air fuel ratio. | ||||||||||
| 78 (G) | 76 (B) | Engine oil temperature sensor | Input | [Engine is running] | 0 - 4.8 V Output voltage varies with engine oil temperature. | ||||||||||
| 80 (BR) | - | Sensor ground (Mass air flow sensor, intake air temperature sensor) | - | - | - | ||||||||||
| 81 (W) | 128 (B) | A/F sensor 1 (bank 2) | Input | [Ignition switch: ON] | 1.8 V | ||||||||||
| 82 (P) | 80 (BR) | Mass air flow sensor | Input | [Engine is running]
|
0.9 - 1.2 V | ||||||||||
[Engine is running]
|
1.6 - 1.9 V | ||||||||||||||
| 83 (BR) | 88 (LG) | Sensor power supply [Camshaft position sensor (PHASE) (bank 1)] | - | [Ignition switch: ON] | 5 V | ||||||||||
| 84 (Y) | - | Sensor ground [Crankshaft position sensor (POS)] | - | - | - | ||||||||||
| 85 (B) | 91 (-) | Knock sensor (bank 1) | Input | [Engine is running] Idle speed | 2.5 V(2) | ||||||||||
| 86 (W) | 91 (-) | Knock sensor (bank 2) | Input | [Engine is running] Idle speed | 2.5 V(2) | ||||||||||
| 87 (V) | 92 (SB) | Sensor power supply [Camshaft position sensor (PHASE) (bank 2)] | - | [Ignition switch: ON] | 5 V | ||||||||||
| 88 (LG) | - | Sensor ground [Camshaft position sensor (PHASE) (bank 1)] | - | - | - | ||||||||||
| 89 (L) | 84 (Y) | Crankshaft position sensor (POS) | Input | [Engine is running]
|
4.0 - 5.0 V(1) | ||||||||||
| [Engine is running] Engine speed: 2, 000 RPM | 4.0 - 5.0 V(1) | ||||||||||||||
| 91 (-) | - | Sensor ground [Knock sensor (bank 1), knock sensor (bank 2)] | - | - | - | ||||||||||
| 92 (SB) | - | Sensor ground [Camshaft position sensor (PHASE) (bank 2)] | - | - | - | ||||||||||
| 93 (LG) | 92 (SB) | Camshaft position sensor (PHASE) (bank 2) | Input | [Engine is running]
|
3.0 - 5.0 V(1) | ||||||||||
| [Engine is running] Engine speed is 2, 000 RPM | 3.0 - 5.0 V(1) | ||||||||||||||
| 94 (GR) | 88 (LG) | Camshaft position sensor (PHASE) (bank 1) | Input | [Engine is running]
|
3.0 - 5.0 V(1) | ||||||||||
| [Engine is running] Engine speed is 2, 000 RPM | 3.0 - 5.0 V(1) | ||||||||||||||
| 96 (P) | 64 (V) | Sensor power supply (Refrigerant pressure sensor) | - | [Ignition switch: ON] | 5 V | ||||||||||
| 97 (W)(4) (R)(5) |
100 (R)(4) (W)(5) |
Accelerator pedal position sensor 1 | Input | [Ignition switch: ON]
|
0.5 - 1.0 V | ||||||||||
[Ignition switch: ON]
|
4.2 - 4.8 V | ||||||||||||||
| 98 (P)(4) (B)(5) |
116 (G)(4) (L)(5) |
Accelerator pedal position sensor 2 | Input | [Ignition switch: ON]
|
0.25 - 0.50 V | ||||||||||
[Ignition switch: ON]
|
2.0 - 2.5 V | ||||||||||||||
| 99 (R)(4) (G)(5) |
100 (R)(4) (W)(5) |
Sensor power supply (Accelerator pedal position sensor 1) | - | [Ignition switch: ON] | 5 V | ||||||||||
| 100 (R)(4) (W)(5) |
- | Sensor ground (Accelerator pedal position sensor 1) | - | - | - | ||||||||||
| 101 (G) | 108 (R) | ASCD steering switch | Input | [Ignition switch: ON] ASCD steering switch: OFF | 4 V | ||||||||||
| [Ignition switch: ON] MAIN switch: Pressed | 0 V | ||||||||||||||
| [Ignition switch: ON] CANCEL switch: Pressed | 1 V | ||||||||||||||
| [Ignition switch: ON] RESUME/ACCELERATE switch: Pressed | 3 V | ||||||||||||||
| [Ignition switch: ON] SET/COAST switch: Pressed | 2 V | ||||||||||||||
| ICC steering switch | Input | [Ignition switch: ON] ICC steering switch: OFF | 4.2 V | ||||||||||||
| [Ignition switch: ON] MAIN switch: Pressed | 0 V | ||||||||||||||
| [Ignition switch: ON] CANCEL switch: Pressed | 1.9 V | ||||||||||||||
| [Ignition switch: ON] RESUME/ACCELERATE switch: Pressed | 3.7 V | ||||||||||||||
| [Ignition switch: ON] SET/COAST switch: Pressed | 3.2 V | ||||||||||||||
| [Ignition switch: ON] DISTANCE switch: Pressed | 2.6 V | ||||||||||||||
| [Ignition switch: ON] DYNAMIC DRIVE ASSISTANCE switch: Pressed | 1.0 V | ||||||||||||||
| 102 (O) | 112 (G) | EVAP control system pressure sensor | Input | [Ignition switch: ON] | 1.8 - 4.8 V | ||||||||||
| 103 (Y)(4) (W)(5) |
116 (G)(4) (L)(5) |
Sensor power supply (Accelerator pedal position sensor 2) | - | [Ignition switch: ON] | 5 V | ||||||||||
| 104 (P) | - | Data link connector | Input/Output | - | - | ||||||||||
| 106 (Y) | 128 (B) | EVAP canister vent control valve | Output | [Ignition switch: ON] | BATTERY VOLTAGE (11 - 14 V) | ||||||||||
| 107 (W) | 112 (G) | Sensor power supply (EVAP control system pressure sensor, engine oil pressure sensor) | - | [Ignition switch: ON] | 5 V | ||||||||||
| 108 (R) | - | Sensor ground (ASCD steering switch) | - | - | - | ||||||||||
| 109 (SB) | 128 (B) | Ignition switch | Input | [Ignition switch: OFF] | 0 V | ||||||||||
| [Ignition switch: ON] | BATTERY VOLTAGE (11 - 14 V) | ||||||||||||||
| 111 (BR) | 120 (LG) | Fuel tank temperature sensor | Input | [Engine is running] | 0 - 4.8 V Output voltage varies with fuel tank temperature. | ||||||||||
| 112 (G) | - | Sensor ground (EVAP control system pressure sensor, engine oil pressure sensor) | - | - | - | ||||||||||
| 113 (P) | - | CAN communication line (CAN-L) | Input/Output | - | - | ||||||||||
| 114 (L) | - | CAN communication line (CAN-H) | Input/Output | - | - | ||||||||||
| 116 (G)(4) (L)(5) |
- | Sensor ground (Accelerator pedal position sensor 2) | - | - | - | ||||||||||
| 118 (W) | 128 (B) | PNP signal | Input | [Ignition switch: ON] Selector lever: P or N position | BATTERY VOLTAGE (11 - 14 V) | ||||||||||
| [Ignition switch: ON] Selector lever: Except above position | 0 V | ||||||||||||||
| 120 (LG) | - | Sensor ground (Fuel tank temperature sensor) | - | - | - | ||||||||||
| 121 (LG) | 128 (B) | Power supply for ECM | Input | [Ignition switch: ON] | BATTERY VOLTAGE (11 - 14 V) | ||||||||||
| 122 (R) | 128 (B) | Stop lamp switch | Input | [Ignition switch: OFF] Brake pedal: Fully released | 0 V | ||||||||||
| [Ignition switch: OFF] Brake pedal: Slightly depressed | BATTERY VOLTAGE (11 - 14 V) | ||||||||||||||
| 123 (B) 124 (B) |
- | ECM ground | - | - | - | ||||||||||
| 126 (LG) | 128 (B) | Brake pedal position switch/ICC brake switch | Input | [Ignition switch: ON] Brake pedal: Slightly depressed | 0 V | ||||||||||
| [Ignition switch: ON] Brake pedal: Fully released | BATTERY VOLTAGE (11 - 14 V) | ||||||||||||||
| 127 (B) 128 (B) |
- | ECM ground | - | - | - | ||||||||||
|
|||||||||||||||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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