Anyone had the key fob loose its programming?

[Motorhead]

My 2007, 5. 9 truck did a funny thing yesterday. I came hope from an appointment, parked the truck and pushed the lock button on the key fob and nothing happened. I came into the house and got the other key and it worked the locks. I checked the battery and it was good. I cleaned contacts in the fob but no good. I searched the forums about diagnosing the in-op fob. I decided to try reprogramming it. I followed the procedure in the factory shop manual and it works now. What would have caused this to happen?? I have been using the same key/fob since new.

 

[JJPage]

Does the fob have a battery? I'm guessing it does... .

 

[Motorhead]

Yes it does. Mine is the fob with the key all in one like this.
http://www.ebay.com/itm/08-Dodge-Ra...Parts_Accessories&hash=item2c6eb0b87c&vxp=mtr

 

[sag2]

carefully inspect the board for broken solder joints.

 

[Motorhead]

carefully inspect the board for broken solder joints.

I'll take a look at it. Thanks

 

[JDeMont]

Any resolution? I have the separate fob on my 2004. 5 & thought it was a battery, but it wasn't as I tried the alternate fob & it worked the same; either not at all or after about 5-10 tries. I'm guessing, but it appears that the problem may be in the receiver or whatever it is in the truck. Trying to avoid the dealer on this one, but i may have to bend over & grab the soap! Intermittent function with 2 separate fobs would eliminate most of the issues mentioned above.

 

[Motorhead]

My BAD..... I should have reported back. I just did the standard key programming like the shop manual says and I think ​if you search the threads, it is posted here too. I reprogrammed it and it worked! Don't what the hell made it loose the programming and I haven't had any trouble since.

 

[Prairie Dog]

Could be as Sag suggested. You may have cracked cold solder joints that will keep acting up.
Seems like Dodge is becoming the poster child for poor flow-solder.

 

[Motorhead]

I looked at the circuit with a good magnifier hood and all joints were good.