Toyota Corolla (E120): Terminals of ecu

Problem symptoms table

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    Pre–check
    1. Diagnosis system Release the parking brake lever.  check the warning lights. When the ignition switch is turned on, check that the abs warning light and brake warning light goes on for 3 sec. Hint: when the parking brake is applied or the level of the brake fluid is low, the ...

    Fail–safe chart
    If any of the following codes is recorded, the ecm enters the fail–safe mode. Check for intermittent problems Hand–held tester only: by putting the vehicle’s ecm in the check mode, the 1 trip detection logic is possible instead of the 2 trip detection logic, and the sensitivity to de ...

    Inspection procedure
    Hint: start the inspection from step 1 in case of using the hand–held tester and start from step 2 in case of not using the hand–held tester. 1 Perform active test by hand–held tester(abs motor relay) Check the operation sound of the abs motor individually when operaing it with the ...