4 Runner 2WD V6-4.0L (1GR-FE) (2006)
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In the DTC check, it is very important to determine whether the problem indicated by the DTC is still occurring or has occurred in the past but
returned to normal at present. In addition, it must be checked in the problem symptom check whether the malfunction indicated by the DTC is
directly related to the problem symptom or not. For this reason, the DTC should be checked before and after the symptom confirmation to
determine the current conditions. If this is not done, it may, depending on the case, result in an unnecessary troubleshooting for normally operating
systems, making it more difficult to detect the problem area, or trying to repair irrelevant areas. Therefore always follow the procedures in the
correct order and perform the DTC check.
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A flow chart showing how to proceed with the troubleshooting using the diagnostic trouble code (DTC) check is shown. This flow chart shows
how to utilize the DTC check effectively Then, by carefully checking the results, this chart indicates how to proceed either to the DTC