Toyota Corolla (E170): Device registration/connection flow

Audio unit

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    Circuit description
    In the diagram below, when the engine is cranked, current flows from terminal st2 of the ignition switch to the starter relay coil and also current flows to terminal sta of the ecm (sta signal). When the sta signal and ne signal are input to the ecm, tr is turned on, current flows to the c ...

    Circuit description
    When driving uphill under cruise control, in order to reduce the number of shifting due to on–off overdrive operation and to provide smooth driving, when down shifting in the electronically controlled transmission occurs, a signal to prevent upshift until the end of the uphill slope is sent ...

    Precaution
    1. Work precautions (A) vehicle protection (1) when welding, cover glass, seats, carpets, etc. With heat resistant fireploof covers to protect them. (B) safety (1) never stand in the path of the chain when using a puller on the body or frame, and be sure to attach a safety cable. ...