nvdale Posted November 23, 2015 Report Share Posted November 23, 2015 I have a 2012 DJ with 4.3 uconnect system. Radio started acting up by losing presets. then a short time later, screen went blank. Disconnect neg battery cable and checked fuses. All checked good. Pulled Uconnect form dash to see if anything obvious was wrong. Again, all looked ok. Put everything back together and hooked up battery for a "cross finger" check. No luck, still blank screen. Started looking up parts for a new screen. Found for $650 - $750. Bummed out. Three hours later started car and Uconnect works fine!!!! Gremlins???? This happen to anyone else? dhh3 1 Quote Link to comment Share on other sites More sharing options...
dhh3 Posted November 23, 2015 Report Share Posted November 23, 2015 With all the electronics in today's cars, it pays to buy an extended warranty. jkeaton 1 Quote Link to comment Share on other sites More sharing options...
bramfrank Posted November 23, 2015 Report Share Posted November 23, 2015 It could just as easily be a bad radio or even an intermittent fuse - does the system go dead? Or does the screen simply not light up and everything still actually works?Check eBay for screens - $123 gets you one from a wrecked vehicle with a 30 day warranty. jkeaton 1 Quote Link to comment Share on other sites More sharing options...
OhareFred Posted November 24, 2015 Report Share Posted November 24, 2015 Fuses cannot be intermittant. They are good or they are bad. Circut breakers,on they other hand, can be. I dont think there are anycircut breakers for the electronics. More than likely if its not a bad unit you may have a loose wire, bad connection,dirty connection,etc. good luck! 11journeybama, jkeaton and dhh3 3 Quote Link to comment Share on other sites More sharing options...
bramfrank Posted November 24, 2015 Report Share Posted November 24, 2015 Sorry to burst your bubble, but they certainly CAN become intermittent. jkeaton 1 Quote Link to comment Share on other sites More sharing options...
bramfrank Posted November 24, 2015 Report Share Posted November 24, 2015 (edited) The pins on the box fuses the Journey uses can corrode and the connection can become intermittent. BTDT . . . . so only one of us is wrong . . . . and that'd be you. Edited November 24, 2015 by bramfrank jkeaton 1 Quote Link to comment Share on other sites More sharing options...
bigtsr Posted November 24, 2015 Report Share Posted November 24, 2015 I have had over the course of 4-1/2 years of driving my DJ had 2-3 occasions when the 4.3 did not start (blank screen) no big deal , turn ignition off and restart and all was fine. jkeaton and dhh3 2 Quote Link to comment Share on other sites More sharing options...
bramfrank Posted November 24, 2015 Report Share Posted November 24, 2015 Actually intermittent fuses were quite common with fast-blow fuses from the old AG (glass tube) series that used to be in common use - the filament in relatively low current devices could suffer mechanical failure by stretching due to vibration and separate. The strands would flail about and, because they were straight wires that had been stretched somewhat, if the ends touched they'd 'weld' together - and the process could repeat over and over - and they'd look just fine on a visual inspection.The box style cartridge fuses of the type the DJ uses in the engine bay have cheap metal connection pins - if you get moisture into the fuse block they can corrode and become intermittent - I had that with the '11 - about 3 months after I had the car detailed I lost two of the fuses because they had pressure washed the engine and water got into the box - the door locks and blower went weird . . . . . and the sockets on the fuses were white with corrosion - lots of contact cleaner and brushing of the contacts in the fuse well and a couple of new fuses and it was all good again. And that's how fuses get to be intermittent. OhareFred and jkeaton 2 Quote Link to comment Share on other sites More sharing options...
jkeaton Posted November 24, 2015 Report Share Posted November 24, 2015 Aaaannndd.....here comes another meme. 11journeybama and dhh3 2 Quote Link to comment Share on other sites More sharing options...
dhh3 Posted November 24, 2015 Report Share Posted November 24, 2015 Power washing your fuse box generally is not a good idea. Do you let your car presoak before blasting the electronics with water?? Sort of like my keys in my washing machine. This might be a better way to wash my FOB. At least the pool chemicals would kill any nasty germs. 11journeybama 1 Quote Link to comment Share on other sites More sharing options...
OhareFred Posted November 25, 2015 Report Share Posted November 25, 2015 Actually intermittent fuses were quite common with fast-blow fuses from the old AG (glass tube) series that used to be in common use - the filament in relatively low current devices could suffer mechanical failure by stretching due to vibration and separate. The strands would flail about and, because they were straight wires that had been stretched somewhat, if the ends touched they'd 'weld' together - and the process could repeat over and over - and they'd look just fine on a visual inspection. The box style cartridge fuses of the type the DJ uses in the engine bay have cheap metal connection pins - if you get moisture into the fuse block they can corrode and become intermittent - I had that with the '11 - about 3 months after I had the car detailed I lost two of the fuses because they had pressure washed the engine and water got into the box - the door locks and blower went weird . . . . . and the sockets on the fuses were white with corrosion - lots of contact cleaner and brushing of the contacts in the fuse well and a couple of new fuses and it was all good again. And that's how fuses get to be intermittent. Well I'll be dammed! I did not know that. I was always taught if you had no continunity at the fuse pins, the fuse was bad, if you did, the fuse was good. Never too old to learn some new shit! jkeaton and dhh3 2 Quote Link to comment Share on other sites More sharing options...
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