Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / How to troubleshoot ecu controlled systems

Toyota Corolla (E120): How to troubleshoot ecu controlled systems

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Adjustment
1. Headlight aim only  place the vehicle in the following conditions. The area around the headlight is not deformed. The vehicle is parked on a level surface. Tire inflation pressure is in the specified value . A driver is in the driver’s seat and the vehicle is in a state rea ...

Circuit description
When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm. This signal causes current to flow to the coil, closing the contacts of the efi relay and supplyin ...

Using the AUX port
To use the AUX port, connect a portable player, press the “AUDIO” button, then select “AUX” to display the audio control screen. Connecting a portable audio player ■Operating portable audio players connected to the multimedia system The volume can be adjusted using the vehicle' ...