XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

Beeping alarm /flashing lights

Old 04-22-2017, 04:30 PM
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I agree with the above post by MALC4D, but your battery should not be dead in a week unless you have a week (sic) battery. The easy way to trace a clandestine discharge is by pulling fuses and if I remember correctly, a meter between the positive side of the battery. When you pull the right fuse the discharge stops. Then you will know the circuit the discharge is in. With the XJS you could also remove one of the power lines in the engine compartment. That would cut your fuse pulling exercise in half. Hopefully, some other owner will help with this explanation.
Old 04-24-2017, 08:47 PM
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I did not find an Eagle Picher CF-1.2 SLA battery that appears to be the original battery. Mine was marked 11 92. I assumed 11 92 was the date of manufacture. The 1.2 is the wattage. I found an Eagle Picher CF-6V4.5 SLA battery. It is larger, won't fit in the box, but small enough to go into the antenna compartment. They run about $11.00 and are all over the internet including eBay.
I worked on the nudge box and found the sensitivity pot had broken loose and soldered it.
I also noted that there were two spade connectors, one three contact and the other four contact. My nudge box was only connected on the three connector side and I found no other connectors nearby???
Connected everything up and shook the nudge box, but the only thing I saw or heard was the red LED flash in the box occasionally. I did not have the trunk closed but did have the locks on the doors also no backup battery. The yellow wires were separated and I joined them. From this description I thought you might recognize the problem, and would appreciate your input
By the way Jaguar calls it a Shock Alarm (fig 28, 1993 Electric Guide)and in the military we called it a Trembler use to prevent the movement of high explosives. I like Nudge Box; it's so British!

Last edited by afterburner1; 04-24-2017 at 08:52 PM.
Old 12-23-2018, 12:48 PM
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Default This diagram is awesome!!!

Originally Posted by malc4d View Post
You will need 3 hands. push in where shown and pull plug apart. Maybe will need help with a small screwdriver also where shown.

A huge thank you for this! I finally got that disconnected and no longer have the battery drain issues. Somehow the security system is killing my battery and no clue how to fix it.
Old 05-10-2019, 03:17 PM
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This worked for me! I'd been fussing with locking, unlocking manually, trying the remote, key this way and that. I read this, got in the car, closed the door, pressed the fob 5 times in quick succession. The alarm sounded twice, then.....sweet silence! Central locking works too. No disconnecting scary plugs or brain surgery necessary!
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