![]() The Tech 2 has the ability to perform a full vehicle diagnostic in a little over two minutes. Each module sends a Health/Status message which is continuously updated. If a sensor doesn't send a proper reading to it's module, an error code, called a Diagnostic Trouble Code (DTC) is generated. XLR uses two communication paths, (a high-speed GMLAN and lower-speed Class 2 bus) connecting 21 modules, each with their own set of sensors. XLR is probably the most sophisticated, module-intensive vehicle on the road today The Tech 2 is indespensible for deciphering what's happening thoughout the vehicle. Today's techs have to be continuously trained, wrench-turning, digital savants to comprehend the myriad inter-related systems that are brought to them. Modern cars employ more powerful computers in just their Nav systems than the spacecraft we sent to the moon. The days of self-taught, wrench-turning auto mechanics are over. You'd have to witness the entire Venezuelan Air Force crash-land in one of their nationalized gasoline refineries to match the kind of fun I had this afternoon using my Tech 2 for the first time.įor those who don't know what it is, the Tech 2 is the tool GM techs use to peer into the innards of our XLRs when the Mk 1 Mod 1 eyeball just isn't enough.
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