Electrical issue on 04 2500 I have codes
 

I noticed a few months ago that the steering wheel selector switches were occasionally working and then not working! Now my gauges won't work for a min or two when first starting the truck until I put the truck in drive then the gauges work. Now my service air bag light is on when I take right or left turns... The codes are C0035,U12255,U1003,C0306!
Any ideas would be great!

Thanks'
Adam

sounds like a bad ground

check the grounds, especially the one on the frame under the driver door

C0035 = left front wheel speed sensor

I will do that first thing in the morning... Do you think all the codes are related to the ground issue... it makes sense that would be the problem on everything! Thanks for your suggestion

C0035 = left front wheel speed sensor and C0306 is a 4wd issue. May be unrelated but i would check the grounds as that particular one under the driver side door can cause all sorts of weard problems. The "U" codes are communication errors and are not normally something to worry about.

All your other problems may by from the ground or something else. Tjere is one other connection to check. The two large bale connectors on the top driver side of the engine. Sometimes the pins work there way loose and need to be pulled back out. Disconnect them and inspect the pins. With needle nose pliers pull any "short" pins back out to their full length. I had this happen to me and i had gauge issues, lights staying on, etc. Weird stuff