XJ XJ6 / XJR6 ( X300 ) 1995-1997

Strange place for Relays... how to extract them?

 
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Old 02-13-2019, 03:52 PM
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Default Strange place for Relays... how to extract them?

Relays shown are just behind the nearside (driver's) headlamps (in the front of engine bay of course). I've heard /read this location for electrical is problematic, and just wondering what these relays power, since I do not have a workshop manual yet. The car ('95 XJ6 X300 4L) has some off-putting electrical issues. As such, I'd like to pull those relays and check the contacts.. but depressing the clip and attempting to remove, not a single one will ...budge! ...at all! I'm reluctant to force out the relay with pliers, of course. So ... any ideas on how to pull these? Also there is a vacuum hose T junction running off to some strange (to me) looking devices just below the air filter housing... any idea what the vacuum hoses connect to?
TIA for any help here.
PS promise I'll get a workshop manual..!

 
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Old 02-13-2019, 04:46 PM
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G'day Montoya,

Have a look here and you'll find all the info you need.

https://www.jaguarforums.com/forum/x...48/#post263943

There are relays behind each headlight area. As far as removing them there is a clip which needs to be depressed before the relay and plug can be separated and strangely the relay remains attached to the car and the plug can be removed. IIRC you can slide the whole relay and socket upwards off the mounting bracket and then separate them.

In your pic the shiny black thing behind the yellow cable is the vacuum pump for the cruise control.

Cheers from down under,
Jeff.
 
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Old 02-14-2019, 12:06 AM
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Under your arrow is also the purge valve for fuel vapours, the lines you are seeing might be the purge lines.
 
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Old 02-14-2019, 01:25 AM
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The large relays have waterproof rings that seal and stick

A shot of penetrating oil helps free them up

with a thin screwdriver the mounting clip can be released and pulled up to turn the socket upside down to get penetrate in the mating halve seams

The relay and the socket has a button that needs to be depressed to separate the 2

The wiring guide for the 95 year has some small differences from the later 96 - 97 year

http://www.jagrepair.com/images/Auto.../jagxj1995.pdf


There was some fuse size upgrades over the years

See TSB 15 - 17

http://www.jagrepair.com/X300TSB.htm

See page 17 of the Doc below :

The # 1 fuse is always the one closest to the terminal post on the fuse boxes , 2 boxes under the rear seat
 
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X300 1996 LWB.pdf (2.14 MB, 9 views)

Last edited by Lady Penelope; 02-14-2019 at 02:32 AM.
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Old 02-14-2019, 06:21 PM
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[email protected]! thanks again for all the great info LP! ...a very useful forum!
Lots here to digest, especially on the modifications introduced in '96...!
Speaking of lots, I've got lots in progress and will update, after all deferred (until now) maintenance is addressed.
One thing that concerns me is the eventuality of possibly replacing the o2 sensors, mainly from an access point of view.
Shown in the photo is the sensor at the rear bank down cat, looking down from the bonnet offside, and looks really inaccessible to me.
Has a 17 mil crow foot worked successfully here?
Another question, since the scanner is/was reporting a cat error, if repeatable do I assume the up cats need to be replaced?
..or the under floor cats need replacing? ie how to determine which cats are bad, if the same cat error code repeats?
Unfortunately I am inexperienced with scoping pulses, reading live data, or addressing open loop/closed loop errors!
The above will only come into play however when I get through the maintenance and have the car running again, to scan for codes should the engine MIL return.
regards

 
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Old 02-14-2019, 07:57 PM
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See oage 81

http://www.jagrepair.com/images/Trai...20-%202000.pdf

There are many things to do before changing Cats or sensors

The sensors are the different platinum sensors and there is a cheaper Bosch connector ready equivalent

The sensors generate a different resistance per O2 concentration and do not generate a voltage from ground
 

Last edited by Lady Penelope; 02-14-2019 at 08:25 PM.
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