Hi all - car is 2001 x-type 2.5
I've trawled numerous posts but still no fix for my problem. Key fob worked fine last night - I double locked the car no problems. Maybe 40 ish minutes later key fob was totally unresponsive - all buttons. Unlocked drivers door (only) and after alarm etc. car started fine.
I replaced key battery and nothing. I tried reprogramming key but no 'ding' from car. Key manually unlocks drivers door only which leaves passenger door unlocked. Is there a fuse or relay I should check before getting a garage to look at it?

 

I opened my FOB and found that the IC (brain) had come completely unsoldered. Also the buttons most used had black goop around them. So, I'm debating whether to go to the dealer for a new one with programming. They charge about $300.00

 

I'd loop for a broken connection on the board; the goop is normal.

 

try e bay for a replacement key
i got one for my x type a couple of pounds from a scrap yard

 

Think a garage is looking likely - boot now refuses to latch closed and lock won't work on inside drivers door. Too many headaches for a weekend fix

 

my boot never closes first time its a fault with the boot button.

 

Found a temporary fix for the boot. Used a screwdriver activate the latch as if it were closing. Pushed the boot button twice and it closed. That'll do for now...

 

I had the same problem on BOTH fobs. Happily for me the solution was very simple.

If you look at Patterson's very useful photo you will see the four microswitches which sit under the rubber keypad. These frequently become stuck through contamination (body fluids?) and need to be cleaned to restore full operation. I used a can of electronics switch cleaner, but IPA alcohol or methylated spirit will do just as well. Give them a thorough wash using a cotton bud. You can test them without putting the entire fob back together.

Finally, double check that the battery is making good contact with the little spring contacts inside the fob case.

My suspicion would always fall on the keyfob mechanism before looking at the car itself.