Toyota Corolla (E120): Precaution

  • Care must be taken to replace each part properly, because it could affect the performance of the brake system and result in a driving hazard. Replace the parts with the parts which have the same part number or equivalent.
  • It is very important to keep parts and the area clean when repairing the brake system.
  • If the vehicle is equipped with a mobile communication system, refer to the precaution in the introduction section.
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    General information
    There are many ecu controlled systems used in the corolla. In general, ecu controlled system are considered to be very intricate and require a high level of technical knowledge and expert skill to troubleshoot. The fact is, however, that if you proceed by inspecting the circuits one by one, ...

    Circuit description
    The shift solenoid valve sl is turned ”on” and ”off” by signals from the ecm in order to control the hydraulic pressure operation, the lock–up relay valve, which then the controls operation of the lock–up clutch. Fail safe function: if the ecm detects a malfunction, it turns the ...

    Circuit description
    The crankshaft position sensor (ne signal) consists of a magnet, iron core and pickup coil. The ne signal plate (crankshaft position sensor plate) has 34 teeth and is installed on the crankshaft. The ne signal sensor generates 34 signals for each engine revolution. This sensor monitors a p ...