tle Posted July 8, 2009 Report Share Posted July 8, 2009 I have an '05 CTS and the Service A/C System code came up on my screen. The pressure was low and my local repairman (not a dealer) serviced my air conditioning and said it's fine. HOWEVER, he could not clear the message and it still comes up everytime I start the car. MUST I take this to a dealer to clear this code? I tried the f1 and f6 trick, did not work. Can anyone help? Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 8, 2009 Report Share Posted July 8, 2009 My guess is that you can simply disconnect the negative battery terminal, forcing a reset/reboot Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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