Toyota Corolla (E120): 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 the order shown. If necessary, repair or replace these parts.

On–vehicle inspection

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    Wireless remote control/electronic key battery
    Replace the battery with a new one if it is depleted. As the key may be damaged if the following procedure is not performed properly, it is recommended that key battery replacement be performed by your Toyota dealer. ■If the key battery is depleted The following symptoms may occur: The smart ke ...

    Check open circuit
    For the open circuit in the wire harness in fig. 1, Perform a resistance check in step (b) or a voltage check in step (c) to locate the section. Check the resistance.  Disconnect connectors a and c and measure the resistance between them. Resistance: 1 Ω or les ...

    Precaution
    Caution: the corolla is equipped with srs, which comprises a driver airbag, front passenger airbag and side airbag. Failure to carry out service operations in the correct sequence could cause the srs to unexpectedly deploy during servicing, possibly leading to a serious accident. Fu ...