Toyota Corolla (E120): Mass or volume air flow circuit range/performance problem

Mass or volume air flow circuit

Circuit description

Other materials:

If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle's battery is discharged. You can also call your Toyota dealer or a qualified repair shop. Restarting the engine If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt battery, you can jump start you ...

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 ...

RSA (Road Sign Assist)
The RSA system detects specific road signs using the front camera and/or navigation system (when speed limit information is available) and warns the driver via displays and buzzers. WARNING ■For safe use Driving safely is solely the responsibility of the driver. Pay careful attention to the su ...