GS 350 RWD V6-3.5L (2GR-FSE) (2007)
![background image](/lexus/gs_350_rwd/v6-3.5l_(2gr-fse)/Page-1281007.png)
Part 4
-
Another function is the Input Signal Check, which checks if the signals from various switches are sent to the ECU correctly. By using these
functions, the problem areas can be narrowed down and troubleshooting is more effective. Diagnostic functions are incorporated in the given
system in the LEXUS GS430/350.
-
In the DTC check, it is very important to determine whether the problem indicated by the DTC is either: 1) still occurring, or 2) occurred in the
past but has since returned to normal. In addition, the DTC should be compared to the problem symptom to see if they are related. For this reason,
DTCs should be checked before and after confirmation of symptoms (i.e., whether or not problem symptoms exist) to determine current system
conditions, as shown in the flowchart.
-
Never skip the DTC check. Failing to check DTCs may, depending on the case, result in unnecessary troubleshooting for systems operating
normally or lead to repairs not related to the problem. Follow the procedures listed in the flowchart in the correct order.
Part 1