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XJ6 & XJ12 Series I, II & III 1968-1992

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Old 03-19-2010, 11:04 PM
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Default power window relay/fuse 85 xj6 help

All my windows will not go up or down anymore. Is there a fuse that controls the windows,if so where is it. From what I've read there is a relay. can anybody tell me where it is and how to test it. I think I found it,but not sure. the one I found is black, round and has the numbers 87,86,85 and 30/51 and lucus uk on it. also I read about a master window switch, I don't think there is one in my vehicle, if there is how do I know if it is good
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Old 03-20-2010, 07:32 AM
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Assuming you have a left hand drive car the window relay is at the extreme right side of the dashboard, outboard of the glovebox. It has brown, white/pink, black/pink, and red/slate wires. The numbers you mentioned are standard terminal designations and don't identify what the relay is used for.

With a test light or volt meter you can male some simple checks:

The brown wire should have 12v at all times.
The red/slate should have 12v with the key "on"
The white/pink should have 12v with the key "on"
The black/pink should be ground at all times *unless* the master switch is flipped.


Output from the relay branches off to two circuit breakers. Since all of your windows are inop it isn't likely to be a circuit breaker

The master switch is between the regular window switches and works by grounding or un-grounding the relay

Post back if you need more help

Cheers
DD
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1988 Ser III VDP V12
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Old 03-12-2014, 11:47 PM
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Hi Doug, I am facing the same windows problem where both aren't operating. I have cleaned the switches, checked the thermal breakers. I have removed the relay but couldn't tell if its faulty. The wires going into the relay are: white/pink, red/brown, black and brown. Can you please advise which wire goes to which terminal of the relay (85, 86, 87, 30/51).

Thanks,
Gilbert
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Old 03-13-2014, 09:07 AM
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Your wires colors don't agree. Are you sure you have your hands on the correct relay?

30/51 solid brown wire (constant 12v)
87 red/slate (outout to thermal breakers)
86 black/pink (ground)
85 white/pink ('key on' 12v)



If ALL the windows and sunroof are inoperative a good place to start is the lock-out switch. Has it been flipped?

Cheers
DD
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Old 03-13-2014, 10:49 AM
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Hi Doug, problem solved! It was the relay... What an annoying place to change it. I used another relay from the engine bay (guess horn relay) and now windows are working!

My car is actually an XJ-SC and not a convertible.

Thanks a lot for your help!

Cheers,
Gilbert
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Old 03-13-2014, 10:49 AM
 
 
 
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86, back, breaker, circuit, fuse, jaguar, left, location, power, relay, thermal, window, wont, xj6, xjs



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