Toyota Corolla (E120): Wiring

Power source

Location

Communication system

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    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 ...

    Circuit description
    When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm. This signal causes current to flow to the coil, closing the contacts of the efi relay and supplyin ...

    Circuit description
    Refer to dtc c0200/31, c0205/32, c1235/35, c1236/36 Hint: Dtc no. C0210/33, c1238/38 is for the right rear speed sensor. Dtc no. C0215/34, c1239/39 is for the left rear speed sensor. Wiring diagram ...