Electrical Specification
ENGINE CONTROL MODULE (ECM) I/O SIGNAL ELECTRICAL SPECIFICATION
| Content | Connector No. | Terminal No. | Signal (V) | Note | ||
|---|---|---|---|---|---|---|
| Ignition SW ON (Engine OFF) | Engine ON (Idling) | |||||
| Crankshaft position sensor | Signal (+) | B135 | 7 | 0 | -7 -- +7 | Sensor output waveform |
| Signal (-) | B135 | 17 | 0 | 0 | - | |
| Shield | B135 | 28 | 0 | 0 | - | |
| Camshaft position sensor | Signal (+) | B135 | 6 | 0 | -7 - +7 | Sensor output waveform |
| Signal (-) | B135 | 18 | 0 | 0 | - | |
| Shield | B135 | 20 | 0 | 0 | - | |
| Throttle position sensor | Signal | B135 | 13 | Fully closed: 0.2 - 1.0 Fully opened: 4.2 - 4.7 |
- | |
| Power supply | B135 | 3 | 5 | 5 | - | |
| GND (sensor) | B135 | 19 | 0 | 0 | - | |
| Rear oxygen sensor | Signal | B135 | 14 | 0 | 0 - 0.9 | - |
| Shield | B137 | 15 | 0 | 0 | - | |
| GND (sensor) | B135 | 19 | 0 | 0 | - | |
| Front oxygen (A/F) sensor heater | Signal 1 | B136 | 6 | 0 - 1.0 | 0 - 1.0 | - |
| Signal 2 | B136 | 17 | 0 - 1.0 | 0 - 1.0 | - | |
| Rear oxygen sensor heater signal | B136 | 4 | 0 - 1.0 | 0 - 1.0 | - | |
| Engine coolant temperature sensor | Signal | B135 | 12 | 1.0 - 1.4 | 1.0 - 1.4 | After warm-up the engine. |
| GND (sensor) | B135 | 19 | 0 | 0 | After warm-up the engine. | |
| Vehicle speed signal | B137 | 10 | 0 or 5 | 0 or 5 | "5" and "0" are repeatedly displayed when vehicle is driven. | |
| Starter switch | B136 | 20 | 0 | 0 | Cranking: 8 - 14 | |
| A/C switch | B136 | 11 | ON: 10 - 13 OFF: 0 |
ON: 13 - 14 OFF: 0 |
- | |
| Ignition switch | B136 | 10 | 10 - 13 | 13 - 14 | - | |
| Neutral position switch (MT) | B136 | 21 | ON: 0 OFF: 12+/-0.5 |
Switch is ON when gear is in neutral position. | ||
| Neutral position switch (AT) | B136 | 21 | ON: 0 OFF: 12+/-0.5 |
Switch is ON when shift is in "N" or "P" position. | ||
| Test mode connector | B136 | 3 | 5 | 5 | When connected: 0 | |
| Knock sensor | Signal | B135 | 16 | 2.8 | 2.8 | - |
| Shield | B135 | 27 | 0 | 0 | - | |
| Back-up power supply | B135 | 9 | 10 - 13 | 13 - 14 | Ignition switch "OFF": 10 - 13 | |
| Control unit power supply | B135 | 1 | 10 - 13 | 13 - 14 | - | |
| B135 | 2 | 10 - 13 | 13 - 14 | - | ||
| Sensor power supply | B135 | 3 | 5 | 5 | - | |
| Ignition control | #1, #2 | B134 | 33 | 0 | 1 - 3.4 | Waveform |
| #3, #4 | B134 | 32 | 0 | 1 - 3.4 | Waveform | |
| Fuel injector | #1 | B134 | 34 | 10 - 13 | 1 - 14 | Waveform |
| #2 | B134 | 23 | 10 - 13 | 1 - 14 | Waveform | |
| #3 | B134 | 22 | 10 - 13 | 1 - 14 | Waveform | |
| #4 | B134 | 8 | 10 - 13 | 1 - 14 | Waveform | |
| Idle air control solenoid valve | Signal 1 | B134 | 20 | - | 1 - 13 | Waveform |
| Signal 2 | B134 | 6 | - | 1 - 13 | Waveform | |
| Signal 3 | B134 | 5 | - | 1 - 13 | Waveform | |
| Signal 4 | B134 | 19 | - | 1 - 13 | Waveform | |
| Fuel pump relay control | B134 | 11 | ON: 0.5, or less OFF: 10 - 13 |
0.5, or less | - | |
| A/C relay control | B134 | 9 | ON: 0.5, or less OFF: 10 - 13 |
ON: 0.5, or less OFF: 13 - 14 |
- | |
| Radiator fan relay 1 control | B134 | 14 | ON: 0.5, or less OFF: 10 - 13 |
ON: 0.5, or less OFF: 13 - 14 |
- | |
| Radiator fan relay 2 control | B134 | 13 | ON: 0.5, or less OFF: 10 - 13 |
ON: 0.5, or less OFF: 13 - 14 |
With A/C vehicles only | |
| Self-shutoff control | B136 | 12 | 10 - 13 | 13 - 14 | - | |
| Malfunction indicator lamp | B134 | 28 | - | - | Light "ON": 1, or less Light "OFF": 10 - 14 |
|
| Engine speed output | B134 | 10 | - | 0 - 13, or more | Waveform | |
| Torque control 1 signal | B136 | 1 | 5 | 5 | - | |
| Torque control 2 signal | B136 | 18 | 5 | 5 | - | |
| Torque control cut signal | B136 | 15 | 8 | 8 | - | |
| Purge control solenoid valve | B134 | 29 | ON: 1, or less OFF: 10 - 13 |
ON: 1, or less OFF: 13 - 14 |
- | |
| Fuel temperature sensor | B137 | 5 | 2.5 - 3.8 | 2.5 - 3.8 | Ambient temperature: 25°C (75°F) | |
| Fuel level sensor | B135 | 25 | 0.12 - 4.75 | 0.12 - 4.75 | - | |
| Fuel tank pressure sensor | Signal | B135 | 26 | 2.3 - 2.7 | 2.3 - 2.7 | The value obtained after the fuel filler cap was removed once and recapped. |
| Power supply | B135 | 3 | 5 | 5 | - | |
| GND (sensor) | B135 | 19 | 0 | 0 | - | |
| Fuel tank sensor control solenoid valve | B134 | 4 | ON: 1, or less OFF: 10 - 13 |
ON: 1, or less OFF: 13 - 14 |
- | |
| Drain valve | B134 | 3 | ON: 1, or less OFF: 10 - 13 |
ON: 1, or less OFF: 13 - 14 |
- | |
| EGR solenoid valve | Signal 1 | B134 | 18 | 0 or 10 - 13 | 0 or 10 - 13 | - |
| Signal 2 | B134 | 17 | 0 or 10 - 13 | 0 or 10 - 13 | - | |
| Signal 3 | B134 | 16 | 0 or 10 - 13 | 0 or 10 - 13 | - | |
| Signal 4 | B134 | 15 | 0 or 10 - 13 | 0 or 10 - 13 | - | |
| AT diagnosis input signal | B137 | 19 | Less than 1 <-- --> More than 4 | Less than 1 <-- --> More than 4 | Waveform | |
| Small light switch | B137 | 20 | ON: 0 OFF: 10 - 13 |
ON: 0 OFF: 13 - 14 |
- | |
| Blower fan switch | B137 | 13 | ON: 0 OFF: 10 - 13 |
ON: 0 OFF: 13 - 14 |
- | |
| Rear defogger switch | B137 | 4 | ON: 0 OFF: 10 - 13 |
ON: 0 OFF: 13 - 14 |
- | |
| Front oxygen (A/F) sensor signal 1 | B136 | 13 | - | 2.05 - 2.25 | - | |
| Front oxygen (A/F) sensor signal 2 | B136 | 22 | - | 1.75 - 1.95 | - | |
| Pressure sensor | B135 | 15 | 4.0 - 4.8 | 1.1 - 1.9 | - | |
| Intake air temperature sensor | B137 | 6 | 3.15 - 3.33 | 3.15 - 3.33 | Intake air temperature: 25°C (75°F) | |
| SSM/GST communication line | B137 | 16 | Less than 1 <-- --> More than 4 | Less than 1 <-- --> More than 4 | - | |
| GND (sensors) | B135 | 19 | 0 | 0 | - | |
| GND (injectors) | B134 | 35 | 0 | 0 | - | |
| GND (ignition system) | B136 | 26 | 0 | 0 | - | |
| GND (power supply) | B134 | 7 | 0 | 0 | - | |
| GND (control systems) | B137 | 14 | 0 | 0 | - | |
| B135 | 21 | 0 | 0 | - | ||
| GND (oxygen sensor heater 1) | B136 | 5 | 0 | 0 | - | |
| GND (oxygen sensor heater 2) | B136 | 16 | 0 | 0 | - | |