Toyota Corolla (E120): Rear suspension system

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.

Rear suspension

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    Circuit description
    The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal ”stoichiometric” ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of ...

    Out side moulding
    Replacement Hint: use the same procedures for the rh side and lh side. 1. Remove outside moulding Put protective tape around the moulding.  insert a piano wire between the vehicle body and moulding.  tie objects that can serve as handles (for example, wooden blocks) to all ...

    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 ...