Toyota Corolla (E120): Components

Overhaul

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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 park/neutral position switch detects the shift lever position and sends signals to the ecm. Monitor description The park/neutral position switch detects the gearshift position and sends a signal to the ecm. For security, the park/neutral position switch detects the gearshift positio ...

    System description
    The ecm uses signals from the vehicle speed sensor and crankshaft position sensor to detect the actual gear position (1st, 2nd, 3rd or o/d gear). Then the ecm compares the actual gear with the shift schedule in the ecm memory to detect the mechanical trouble of the shift solenoid valves, th ...