![]() Yes, I have had this happen to me as well. Unfortunately many times a technician is thrown off by this and starts looking for problems with the data communication lines. Not a big deal if you know your tool and realize you need to check those circuits. When this condition is encountered you generally end up at a screen that states that the module will not communicate. ![]() Many scan tools now have their own battery supply. therefore if the scan tool will not power up there is a basic problem with power or ground to the DLC. The Tech 2 makes it simple because the tool does not have it’s own battery supply. ![]() ![]() Although the vehicle I am working on is a 2005 Cadillac Escalade, this information is relevant to many OBD2 vehicles. ![]()
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