Toyota Corolla (E120): Terminals of ecu

Problem symptoms table

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    Headlamp dimmer switch assy
    Replacement 1. Remove steering column cover lwr Remove 3 screws and steering column cover lwr. 2. Remove headlamp dimmer switch assy Disconnect the connector.  release the claw and pull out the head light dimmer switch assy. ...

    Circuit description
    The ecm compares the two waveforms of the heated oxygen sensors located before and after the catalyst to determine whether or not the catalyst performance has deteriorated. Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen sensor in front of the catalyst alterna ...

    Using the steering wheel switches
    The steering wheel switches can be used to operate a connected cellular phone or portable digital audio player (portable player). Operating a Bluetooth® phone using the steering wheel switches 1 Volume The voice guidance volume cannot be adjusted using these buttons. 2 Off-hook switch Turns ...