just registered fellas /,Gooday from australia / i need some help with the computer i had trouble with throttle body on my 8.1/ ,lot of trouble codes /,after a lot of work i got rid of the codes all relating the throttle body . the only way i got rid of the codes i traced it down to two wires that come out of the ecm and into the throttle control module / wires are number 14 orange/black circuit 1061 UART serial data secondary and 15 dark blue /white stripe circuit 774 UART serial data tertiary . these 2 wires both are positive power and iv got them both .as soon as i join them back up ,the codes return to throttle body and truck goes into limp mode . is there somebody out there who can tell what to do tofix this wire problem and what the 2 wires mean thanks bob

Don't know if our Silverado is compatible but we have the info for an y US make.

im sure the silverado ecm would have similar if not the same info . how do i get the info u have and thanks for the reply ,chev 8.1 is in a winnebago motorhome 2004

From the PCM'* standpoint, it should be about the same as a Silverado 2500/3500 2WD or Suburban/YukonXL 2500 2WD with no options except air conditioning and maybe ABS.

https://charm.li/Chevrolet/2004/

thanks very much to cathedral club and carfix007 /i believe i have the problem sorted now (in my mind) at least.ill get back to the 8.1 at the weekend and thanks to u two im sure ill sort the problem. thanks again

Please let us know how it goes!