Have been to local parts house they plugged in diagnostic reader. several codes came up. Long list of codes. U1000, U1016,C00055, C0Z01, U1255, C0550, B0790, B2725, P0380, P0540. Do not notice any thing wrong with vehicle starting driving nothing, but from codes WTH???? Is the main PCU bad ??? One of the codes refers to the dash cluster and all gauges are functioning fine. As well as every thing else seems to no problems ?? Please advise.....
Disconnect battery *negative* cable for about 5 minutes.. Reconnect cable .. Drive truck until light comes back on .. Have codes read again ASAP... One fault code can trigger others! .. OBD-II code readers are fairly inexpensive, may want to consider buying one for your own use... Go to > engine-codes.com > for code definitions.
Tried unhooking the cables for quite a while when I started the truck the check engine light stayed on when it started.. Just got back from having Chevy garage check it they said it showed only two problems both relating to the engine air preheat relay ... Which one shop said that was the only error was the preheat.. Go figure... thanks for your reply !
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Tried unhooking the cables for quite a while when I started the truck the check engine light stayed on when it started.. Just got back from having Chevy garage check it they said it showed only two problems both relating to the engine air preheat relay ... Which one shop said that was the only error was the preheat.. Go figure... thanks for your reply !
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