CTIS problems

[mcmullag]

I had/have a truck with working CTIS, I think, but it has been really cold out so I did not start it for two weeks. one tire does leak down in that time, you can see the bulge. I started it up and had 5 flashing lites on Saturday. I followed the info that somebody pasted on page 1 and it helped. I also turned the truck off and on twice while fiddling with it. What seems to help is run the engine at 1200 rpm and hit the run flat button. I think that makes the system try to put air in the tires more often. I got down to one flashing hwy lite and I think if I drive it, that will prolly go solid as it was in the past. This cold weather is probably causing more leaks and problems.

 

[MtnSnow]

CTIS is made up of multiple parts located in multiple locations on the truck. I suggest taking a look at this attachment
View attachment CTIS Troubleshooting AXTS0015.pdf
Also you will find info on the CTIS within the -10 TM as well as the -23 & -24 TM's as well.