Caterpillar Truck Diagnostic Scanner Fault Code Reader fault code reader Choose your Volkswagen year and

Choose your Volkswagen year and model from the drop down list above

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Caterpillar Truck Diagnostic Scanner Fault Code Reader fault code reader Choose your Volkswagen year andService and Maintain Your Caterpillar Truck On The Road. The Caterpillar diagnostic scanner enables you to read and erase the fault codes that relate to the check engine light on your truck. It works on all Caterpillar Trucks listed in the drop down box above. With the code reader, you can quickly find out trouble causes (troubleshooter) of electronically controlled systems on your truck, by simply connecting the reader to the diagnostic socket,