Toyota Corolla (E120): On–vehicle inspection

1. Inspection throttle body idle speed control valve assy

Notice:

Notice

:

  • it is impossible to check the resister value and the operation of isc valve by itself, because the isc valve has an ic circuit inside it, which transforms the duty signal from the ecm to the derive signal.
  • After checking, erase the dtc.
  • Clear the dtc after inspection.

Hint

: when the isc valve system has malfunctions except for its adherence, dtc p0505 is detected.

  1. Operation inspection.
  1.  Connect the isc connector to the isc valve.
  2.  Check the isc valve movement when the ignition switch is turned on.

    Movement: half open " fully close " fully open " half open

Hint: isc valve moves within 0.5 Second.

    Share this page:

    Other materials:

    How to proceed with troubleshooting
    The hand–held tester can be used at step 3, 4, 6, 9. 1 Vehicle brought to workshop 2 Customer problem analysis 3 Connect the obd ii scan tool or hand–held tester to dlc3 4 Check and clear dtc and freeze frame data 5 Visual inspection 6 Setting the check mode diagnosis 7 Proble ...

    Uniform Tire Quality Grading
    This information has been prepared in accordance with regulations issued by the National Highway Traffic Safety Administration of the U.S. Department of Transportation. It provides the purchasers and/or prospective purchasers of Toyota vehicles with information on uniform tire quality grading. ...

    Replacement
    Hint: installation is in the reverse order of the removal. But the installation is indicated only when it has a point. In the lh side, work in the same procedure as in the rh side. 1. Disconnect battery negative terminal 2. Remove front seat assembly rh 3. Remove front seat inner be ...