kjtully
Well-Known Member
Okay @Omodan I have to ask the stupid question. Did you check all the fuses? With everything in today's vehicles being interconnected a failure of one system can cause a cascade effect - part A fails and throws a code, part B that relies on part A detects that part A failed and reports it's own failure and code, etc. My son recently had the fuse to the tranny controller blow and his car threw 5 or 6 codes. After a couple of hours of researching the codes, one solution was to check the fuses. He found and replaced the bad fuse and everything has been good since. Many of the other solutions to the codes required diagnosing and expensive fixes by a dealer.
Since you made new connections and removed them to the CAN BUS for the auto running boards and @Rob6805 said the 'U' codes are CAN BUS related, might be that one or more fuses have blown and the quick simple fix could be to replace them.
Since you made new connections and removed them to the CAN BUS for the auto running boards and @Rob6805 said the 'U' codes are CAN BUS related, might be that one or more fuses have blown and the quick simple fix could be to replace them.