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Note
Before performing any pin point test or component diagnosis,
a Preliminary Check must be performed.
Check for Technical Bulletins that may supersede any
information included in the repair manual or GST Manual.
For Electrical Testing.
For Fuel System Mechanical Testing.
For Oxyge
Function of Air Quality Sensor -G238-
Note
There are different versions of the Air Quality Sensor
-G238-/ humidity sensor in Fresh Air Intake Duct -G657--A-.
Therefore, ensure the correct allocation. Refer to the Parts
Catalog.
Depending on the vehicle version, there are different fres