| Code | Fault | Related Pins | |------|-------|----------------| | 11 | No IGF signal | Pin 13 (IGF) | | 12 | No G signal (distributor) | Pin 11 (G-) | | 13 | No NE signal (cam/crank) | Pin 11 circuit | | 14 | No IGt signal | Pin 12 (IGt) | | 21 | Oxygen sensor fault | Pin B4 (O2), B5 (HT) | | 22 | Coolant temp sensor | Pin 10 (THW) | | 24 | Intake air temp | Pin B7 (ACT) | | 31 | Airflow meter/MAP | Pin 9 (PIM) | | 41 | TPS circuit | Pin 7 (VTA), Pin 8 (VC) | | 51 | Switch condition (A/C, NSS) | Pin A14, B2, B10 |
Toyota 4A-FE ECU pinout is a critical technical resource for maintaining or modifying the engine management system of vehicles like the Toyota Corolla. Because the 4A-FE engine was produced for many years, pinouts vary significantly based on the specific model year and region. Key Technical Specifications Connector Configurations toyota 4afe ecu pinout
: Switched 12V power from the ignition switch via the EFI main relay. | Code | Fault | Related Pins |