Jansen Posted July 1, 2006 Posted July 1, 2006 Looking at picking up an Aeroforce tech gauge. Does anyone know if I can power the gauge through the ODB2 connector or do I need another power supply? Truck is 2004 GMC Sierra. Jansen
Butch 02 Denali Posted July 1, 2006 Posted July 1, 2006 Yes. a switched power supply. The earlier models were powered from the ASDL (OBD2) port and we found they would drain the battery if the vehicle say unused for a few days.
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