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Window Woes.

752120
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Joined: Wed Jun 25, 2014 7:10 am
Location: Warrington Cheshire

Window Woes.

Postby 752120 » Thu Jul 12, 2018 10:11 am

Well the gremlins have struck again. Apart from the none existant bulb blown warning and the occasional self mending fuse blown warning, my Morocco sov has been pretty good for working electrics. However two days before Wroxall my front passenger window refused to budge preferring to make arcing noises from the switch area of the door. Obviously I didn't even attempt a repair until this week. Took the door card off to see if there were loose connections. No. I have a spare switch still crackles. With the difficulty getting the spare regulator out of its door I was reluctant to test it outside my car so changed the regulators over. Still crackled. Glass is free neither switch or regulator works in any combination so it looks like loom probs. I have not got my multimeter out yet as I ran out of time and had to put it back together but where would our electrically inclined and knowledgeable forum people suggest I start testing?
cheers
Dave

katar83
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Location: Cambridge

Re: Window Woes.

Postby katar83 » Thu Jul 12, 2018 1:22 pm

Front passenger window motor is only connected to the switchpack with two cables - orange/black and orange/blue. Check these for continuity and whether any of them is shorted to the ground. Regulator is always easy to test with a spare battery and some leads. It can be temporarily connected directly to 12V, orange/black is UP, orange/blue is down. If other windows work fine then I'd say it must be an issue with these two cables somewhere.
1997, 4.0 LWB X300 - Unlucky car but still a daily driver.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

752120
Snr Member
Posts: 1012
Joined: Wed Jun 25, 2014 7:10 am
Location: Warrington Cheshire

Re: Window Woes.

Postby 752120 » Thu Jul 12, 2018 3:56 pm

Cheers mate, you come to my aid once more. Only the car I am using ever breaks. The turquoise rat has just started on the button after all that hassle after Two weeks.
:shock:

katar83
Distinguished Mbr
Posts: 2502
Joined: Tue Aug 23, 2011 11:17 am
Location: Cambridge

Re: Window Woes.

Postby katar83 » Thu Jul 12, 2018 5:56 pm

My own car gives me nothing but trouble so it's not just you :lol:

Only just sorted a gearbox cable that slipped of a little bush that hold it to gear selector and it felt like the whole diff at back only holding up on a single loose bolt, gears were all over the place! :lol:
Then x300 has this plastic intake breather/resonator, can't remember whether xj40 has it, it basically split right in the middle in a little hole it has and created a 3mm hole each side and an air leak. Took me 2 or 3 weeks to locate it! I knew it has an air leak, just couldn't locate it as it was in a such an awkward place. Of course the car misfired on petrol and stalled often when getting to a stop, I was ready to pull the fuel pump out of the tank... :lol:
Luckily I have lpg on which it ran ok so wasn't stuck completely.

Still love that damned car :shock:
1997, 4.0 LWB X300 - Unlucky car but still a daily driver.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

naki_k
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Location: Kirton, nr Boston, Lincolnshire

Re: Window Woes.

Postby naki_k » Thu Jul 12, 2018 8:53 pm

Did you ever solder the fuseboxes?
The intermittent fuse fail warning is a classic sign that the soldering is failing. Most are by now if they have not been soldered already.
88 3.6 XJ6 PDH/CEM
90 Range Rover Vogue SE 3.9 V8 LPG
91 3.2 XJ6 SportPack Manual
91 4.0 XJ6 Manual
92 4.0 XJR Manual
92 4.0 XJR
93 3.2s - 4.0 Manual conv
93 4.0 Sovereign
93 6.0 XJ81 DD6
93 6.0 XJ81 XJ12
94 4.0 XJR
96 4.0 X306 XJR
96 4.0 X300 D6
97 4.0 X300 Sport Manual
2000 LR Discovery ES TD5 A
Breaking 40/ 300

katar83
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Posts: 2502
Joined: Tue Aug 23, 2011 11:17 am
Location: Cambridge

Re: Window Woes.

Postby katar83 » Thu Jul 12, 2018 10:06 pm

naki_k wrote:Did you ever solder the fuseboxes?
The intermittent fuse fail warning is a classic sign that the soldering is failing. Most are by now if they have not been soldered already.


Dave should have plenty of resoldered fuseboxes, whether he fitted them is another story :lol:
1997, 4.0 LWB X300 - Unlucky car but still a daily driver.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

752120
Snr Member
Posts: 1012
Joined: Wed Jun 25, 2014 7:10 am
Location: Warrington Cheshire

Re: Window Woes.

Postby 752120 » Thu Jul 12, 2018 10:31 pm

I did...... :lol:

752120
Snr Member
Posts: 1012
Joined: Wed Jun 25, 2014 7:10 am
Location: Warrington Cheshire

Re: Window Woes.

Postby 752120 » Sun Jul 15, 2018 7:45 am

Well I have tested the regulator and it works, I have put a multimeter across the feed side of the regulator plug and I get +/- 11.8v depending on the up or down on the window switch. Engine off BTW. To my way of thinking if you have power from the feed and the window regulator works if you plug 'em together you should have an electric window operation. No I get the crackle from that bloody switch again. Didn't crackle when the multimeter was in. Tested regulator with a power pack by the way. Is there a relay somewhere? An earth in the wiring? Seems odd that the crackle comes from the switch. :cry:

752120
Snr Member
Posts: 1012
Joined: Wed Jun 25, 2014 7:10 am
Location: Warrington Cheshire

Re: Window Woes.

Postby 752120 » Sun Jul 15, 2018 9:04 am

Well after trying to get my phone to cut and paste the picture references into my post for ages I have booted up the desk top.
I took the original switch apart. inside is like this.

Image

Image

I cleaned the contacts on the second pic and sprayed contact cleaner everywhere
Tried and still crackles. With switch in hand it feels like the crackling is coming from underneath, which corresponds to the position held by those suspiciously relay looking things on pic 1.
I am completely baffled now. I did notice that the battery's actual voltage is 12.4 ( been fiddling without the engine for two hours now)but the output going to the regulator is 11.8 might this be significant

Brake buster
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Re: Window Woes.

Postby Brake buster » Sun Jul 15, 2018 9:24 am

good luck with the investigations

BB
1994 3.2S in Morocco red and Doeskin/Ruby red interior
1989 V12 XJS White with Mulberry interior
2004 2.1 X-Type Platinum with Champagne Leather interior

previously ,
1999 V8 Sovereign in Seafrost with Oatmeal and Antelope interior


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