ok guys so i had 2 jag xjs , one of them had a burnt out box of some sort behind the drivers side tail light in the trunk, i sold the other jag and now i dont remember what the box even did, something with the lights or brake lights on the left side ? can anyone maybe help identify the missing part, i think there is like 4 - 6 wires that plug onto it, and the info on the box it self said 102 101 lucas 0587 .. thanks a bunch in advance

 

should probably mention it is a 1988 xjs v-12 , thanks again

 

jasinp, I've moved your post from the General Tech section to the XJS section where members more familiar with this model can assist you. You may also want to check the How To's and downloads at the top of this section.


As this is your first post, please stop by the New Member section and post an intro. In return, you receive a warm welcome and some useful tips to navigate the forum:
New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum


enjoy!

 

Plastic or metal? And approx what size?

From vague memory (I used to have an '88 XJS) the 'fuel interface unit" was in that location. It takes info from the ECU and translates it into a language the trip computer can use

Later in in 1988 model year.....VIN 142xxx or so....the speedometer speed sensor was moved to the differential. This required the use of a 'speedometer interface unit' that was also located in the trunk, LH side.

Other will chime in

Cheers
DD

 

if i remember right it was metal and just few inches by few inches in size, the wires that plug into it are individual wires its not a wiring harnes . the last 6 of my vin number is 145123.. from what i can find in the electrical diagrams online and in my books, it would appear that its the abs ecu but i really dont think thats right and when i look up a abs ecu it looks similiar but has a spot to plug in a harness with multiple wires, but like i said mine hooks up from single wires... thanks a bunch , i appreciate the reply

 

What are the wire colors?

Cheers
DD

 

stock photo of bulb failure sensor unit

 

thanks a bunch doug, i appreciate your help, i was just scrolling thru the pdf of my jag repair and it caught my eye this time, i was thinking it had something do do with the lights in some way i just couldnt remember what.. the bulb failure unit makes perfect sence. and after i seen the pic i remembered ... lol