Hey guys how is everyone doing I have a problem with what I think is electrical on my jeep. I purchased my 6th wrangler last year and after having it a few months I had the tipm recall thing i was doing 50 the rpms died down would not go over 1000 all lights died the dashboard lught up like a christmas tree it died and I had to jum it to start it once i did it ran fine. two days ago I got in my wrangler turned the key and nothing, then it struggled to start and nothing then it fired up turned over with no problems but the dash light up like a christmas tree blinking constantly and it keeps beeping the chekc engine light the oil light the abs light air bag seatbelt lights all come on and the rpms bounce but only on the dash the engine components run fine started altinator battery all check out. I ran the obd codes and I got u0001 which sais CAN c crank and u110a which sais lost communication with scm, i dont have any after market wireing asides from a hitch which i disconnected and tried but same thing happened any one got any ideas i would love the help thanks everyone

 

Very possible that you have a failed component, but before going there pull every ground connection off under the hood and sand/scrape it clean. Re-assemble with some good contact cleaner and then see what happens. If cleaning up the grounds does not solve the immediate problem it is still a very good thing to do. I found about half the ground connections loose when I brought my new 2011 home last year.

Look around under/behind the dash for ground connections also.

 

thanks a lot buddy I will def. try to do that and see what happens ill let ya know how I make out.

 

Check all the grounds like the other guy said only other thing I could advise is try ohming them out or do a ground test with a 6 volt battery and see if there is a short somewhere if you don't know how to hook up a 6v battery to do that PM me I will tell you but in my opinion I think it's a short and it's prob nothing to do with your grounds in the jeep just my 2cents though best of luck

 

On the driver's side, under the dash in the footwell there are two bolts with wires grounded to them. Every time mine are not straight up and down my 2007 goes haywire as you describe. Try disconnecting the battery, straightening them out and reconnecting after about ten minutes. Worked for me.

Good luck!

 

alright guys im gonna go try all of those things and ill let you all know what happens, I dont know how to check it with the 6 volt battery so ill m ya in a little while but untill then thanks boys im going crazy with out it

 

alright so i found about 7 or 8 grounds including the two near the clutch and they are all fine nice and snug the battery is bran new and the terminals are clean taped the started for shits and its fine i dont have any aftermarket security anything to i dont know of any big scm in the jeep where the current can be interupted are there grounds im missing? i also checked the positive wire that comes off the battery to the tipm and that is fine as well as the battery ground

 

Good work. Sux that it didn't make a difference. Next step is probably to have a dealer check it out. Most of the electrical stuff can be checked by just plugging their analyzer in. Don't let them suck you in to a lot of cost until they take that simple step. Should cost you 1/2 to 1 hour of shop time.

 

thanks buddy, yea i called them and the tipm was done when it was recalled but im still not trustworthy on it being done rite i love my wrangler but it is chrystler they told me 90 to plug it in and get an answer but im gonna see about bringing it to my buddies sho to do it there i was just trying to avoid that and trust me nothing would be done at a dealer on my jeep except for diagnostics and thats an extreme like now anything else will be dont by my and my buddies lol

 

Alright so I fixed it, I'm not sure what the issue was but I am thinking a lose harness or a bad ground I pulled out the tipm and checked all the harnesses there I reinstalled that then i pulled all the grounds cleaned and reconnected including the two in the passenger side under the dash and the driver side and the one under the drivers seat. I polled the drivers side seat out and cleaned it and cleaned all the rhino liner that was near it I then pulled out the gauges on the dash checked the three harnesses in the back made sure they were tight put it all back together AND........nothing ha so I pulled a few fuses out of the tipm just to double check they were not blown and they were all fine and tried it again and the problem was fixed the jeep runs like a champ and is back to its old gas hog ways. All in all here's what I think it was other a lose harness or a bad ground and I fixed that but for what ever reason it did not solve the problem until I pulled the fuse and reset what ever the problem was?