Ecu Connector Identification
ECU PIN CONNECTOR ABBREVIATION IDENTIFICATION
| Abbreviation | Function |
|---|---|
| ACV | A/C Idle-Up Vacuum Switching Valve |
| BATT | Battery |
| B/K | Brake Switch |
| +B, +B1 | EFI Main Relay |
| ECT | Electronically Controlled Transmission ECU |
| E1, E01, E02 | Computer Ground |
| E2, E21 | Sensor Ground |
| FPU | Fuel Pressure-Up Vacuum Switching Valve |
| IDL | Throttle Position Sensor |
| IGF | Ignitor |
| IGT | Ignitor (Primary Trigger) |
| KNK | Knock Sensor |
| L1, L2, L3 | Electronically Controlled Transmission ECU |
| Ne | Distributor (RPM) |
| NSW | Neutral/Start Switch (Auto. Trans.) |
| No. 10 | Injector |
| No. 20 | Injector |
| OX | Oxygen Sensor |
| SPD | Vehicle Speed Sensor |
| STA | Neutral/Start Switch |
| T | Check Connector |
| THA | Air Temperature Sensor |
| THW | Coolant Temperature Sensor |
| TIL | Turbo Indicator Light |
| TSW | Coolant Temperature Switch |
| VC | Airflow Meter |
| VCC | Throttle Position Sensor |
| VF | Check Connector |
| VS | Airflow Meter |
| VTA | Throttle Position Sensor |
| W | Warning Light |
NOTE:
Diagnostic charts appearing in this article are provided courtesy of Toyota Motor Sales, U.S.A., Inc.