Hello. My 1998 xk8 sat for about 2 months. I charged the battery, then when I try to unlock the car, it's just beeps once and nothing happens. I replaced the battery and the same thing happens, just a beep. Please help.

 

We need more info. What beeps? can you open the door? Will the engine turn over? Do the lights work. Did you get a new battery? or just charge an old one?

 

The single beep comes from the front of the. The doors will not unlock. I put in a brand new battery today. Thanks for the quick reply.

 

I meant front of the car.

 

Use your key to open the door. Get in and turn on the lights... got lights? Will the engine turn over?

If you don't have lights, check to see that the battery terminals are clean and tightened down properly.

 

The door will not unlock, it makes the same beep when I turn the key in the door.

 

Disconnect the battery and then open the door.

 

The door will still not open with key. Any more ideas?

 

If door won't open manually after disconnecting battery... then I'm stumped. Do you have an aftermarket alarm system?

 

Shut the doors and disconnect the battery ground for 10 seconds. Then reconnect the battery and try the remote. Repeat if it does not work the first time. It could take up to a dozen or so tries.

 

No luck, I did it 20 times. The only thing I noticed is that sometimes the trunk lights are on and sometimes they aren't.

 

Check drivers side fuse #5, #15 and passenger side fuse #15.

If the fuses are OK, start the car, reset the windows (roll windows down, keep holding buttons until you hear a click then roll up, keep holding buttons until you hear a click) shut the car off, and try it again.

If it still does not work, try the battery disconnect-reconnect, start the car, window reset routine a few times.

 

I cant get the doors open to do those things.

 

Does the key turn? If it does, turn the key HARD clockwise and hold it against the spring pressure. This should lower the windows (and also the top if it is a convertible).

 

When I hold the key counter clockwise in the door lock it makes a knocking noise for aboit 5 seconds then stops.

 

Did you mean clockwise as I suggested?

 

I tried clockwise first and nothing happened.

 

Assuming you have a convertible, my suggestion would be to follow the instructions in this thread: https://www.jaguarforums.com/forum/x...-closed-71304/ to open the rear quarter windows from the trunk by bypassing the relays.

Then reach in with a coat hanger (unless you have very long arms) and try to unlatch one of the doors from the inside.

 

Are you sure you connected the battery correctly, negative earth???

 

Did you charge the battery when it was connected to the car?
What sort of charger did you use?
Do a proper hard reset
https://www.jaguarforums.com/forum/x...connect-74146/
If that doesn't fix it we'll need to look at a possible fried module somewhere.