Toyota Corolla (E120): Problem symptoms table

Problem symptoms table use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.

On–vehicle inspection

    Share this page:

    Other materials:

    Replacement
    1. Drain brake fluid Notice: wash the brake fluid off immediately if it comes into contact with any painted surface. 2. Remove air cleaner cap sub–assy 3. Remove air cleaner case sub–assy  remove the air cleaner element, then remove the 3 bolts and air cleaner case sub–assy. ...

    Circuit description
    The fuel trim is related to the feedback compensation value, not to the basic injection time. The fuel trim includes the short–term fuel trim and the long–term fuel trim. The short–term fuel trim is the short–term fuel compensation used to maintain the air–fuel ratio at stoichiomet ...

    Circuit description
    The intake air temperature (iat) sensor, mounted on the mass air flow (maf) sensor, monitors the intake air temperature. The iat sensor has a thermistor that varies its resistance depending on the temperature of the intake air. When the air temperature is low, the resistance in the thermisto ...