I keep getting this odd ball code. I have the parking brake light, abs light, and airbag light on in my truck. hooked up the smarty to see what was going on. it said I have a p0602 code, "check sum error." I tryed to clear the code, smarty said the code was erased, but the idiot lights keep staying on. now the smarty says that there are no trouble codes in the truck, but the lights on the dash still remain lit. I am confused as can be. anyone have any ideas?

 

This should help

https://www.dieseltruckresource.com/...ighlight=p0602

 

please pm me and address I will email you a software to test. thanks

 

that's good customer service....answers on a Friday night