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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    Circuit description
    The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal ”stoichiometric” ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of ...

    Inspection procedure
    1 Check door lock 2 Check wire harness (tvip ecu door lock) Disconnect the tvip ecu and door lock connectors.  check the continuity between the terminals of the tvip ecu and door lock connectors, as shown in the illustration and table. Standard: 3 Check wire harness ...

    Monitor description
    While the engine is being cranked, the battery positive voltage is applied to terminal sta of the ecm. If the ecm detects the starter control signal (sta) while the vehicle is driving, it will conclude that there is a fault in the starter control circuit. The ecm will turn on the mil and a d ...