Toyota Corolla (E120): Evaporative emission control system

Dtc p0441 evaporative emission control system incorrect purge flow

Dtc p0446 evaporative emission control system vent control circuit

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Circuit description
The side squib (lh) circuit consists of the airbag sensor assy center and front seat airbag assy (lh). It causes the srs to deploy when the srs deployment conditions are satisfied. Dtc b0115/47 is recorded when a short is detected in the side squib (lh) circuit. Wiring diagram ...

Circuit description
The ignition switch provides circuit power and the ecm provides the circuit ground that illuminates the mil. Mil operation is checked visually: it should be illuminated when the ignition is first turned on. If the mil is off all of the time or on all of the time, use the procedure below to ...

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 ...