Toyota Corolla (E120): Problem symptoms table

Hint

: use the table below to help you find the cause of the problem. The numbers indicate the probability of the 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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    Using the steering wheel switches
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    Light control switch circuit
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    Circuit description
    Refer to dtc p0115 Dtc no. Dtc detection condition Trouble area P0125 If the engine coolant temperature (ect) was less than –6.6 °C (20 °F) when starting the engine, and 20 minutes after the engine start, the ect sensor still indicates below 20 °C (68 ...