![]() ![]() ![]() 85% of local auto mechanics do not have any type of On-board Diagnostic (OBD) scan tool at their repair garages. It has been found out that, over 65% of mechanics in the municipality do not have knowledge on electronic engine management system. Structured self-administered questionnaires were given to the auto mechanics to fill. ![]() A non-random, quota sampling design technique was used in selecting sixty five (65) local auto mechanics in local repair garages in Ho municipality. This research assessed the knowledge of local auto mechanics on electronic engine management system and on-board diagnostic (OBD) scan tools. In order to carry out repair work on modern vehicles effectively and efficiently, OBD scan tool, deeper knowledge on on-board diagnostic and electronic engine management system is required. I'm not putting down Ross-Tech's product - in fact, I've ordered a VAG-COM for my own home use - but realistically, there can be no comparison between a $400 product that runs on a laptop, and a $20,000+ product that is made by VW, strictly for VW's.On-board diagnostics (OBD) for vehicle engines has become increasingly important because of environmental legislative regulations such as OBD II to detect faults in an engine by monitoring various sensors and utilizing fault detection algorithms. A VAG-COM cannot substitute for a VAS 5051 - it lacks the guided fault finding and the self-diagnosis capability. There is more information about this programming change at these threads: and I think it makes sense to take your Phaeton to a dealer who has the correct tools. ![]() Here is where programming changes are made This screen shows the coding for my instrument cluster before changes were made to get rid of the seat belt warning chime and the 'driver door open with key in ignition' warning chime. The tool will identify the exact location of a fault with remarkable precision This particular fault was causing my nav system to occasionally lose track of where it was when driving in underground garages, although I never noticed any problems with the speedometer. ![]()
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