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Wierd electrical fault 

 

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 Post subject: Wierd electrical fault
Posted: Mon Aug 09, 2010 8:34 pm 
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My brother's EL 6 on gas, has developed a weird electrical fault over the last few days.
Basically if you hold the brake down, the dash lights come on, and if you switch the ignition off with the lights on and foot on the brake, the car will still stay on and wont turn off until you turn the lights off.

Ideas? I thought it may have to do with the battery terminals as loose cables can cause strange behaviour, but they seem fine.


Edit: I was just thinking that this should probably have been in the 6cyl section.

 

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 Post subject: Re: Wierd electrical fault
Posted: Mon Aug 09, 2010 8:37 pm 
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maybe check earths or relays.
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 Post subject: Re: Wierd electrical fault
Posted: Mon Aug 09, 2010 9:41 pm 
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what he said ^^^^^

 

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 Post subject: Re: Wierd electrical fault
Posted: Mon Aug 09, 2010 9:43 pm 
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Earths certainly sound likely, sounds similar to this one:
gearbox-suspension-brake-driveline-f4/what-is-wrong-with-my-lights-t48627.html
Possibly, the brakelight power is feeding into the parklight cct, due to poor earths.
Check out the dash earth - under the fascia near the RH tweeter speaker.
Otherwise, check out the stoplight bulbs - are they dual filament ??
Then check out the earths for the bulb holders.

I'm guessing there's no brakelights during this ??

What work on the car was done leading up to this ???

 

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 Post subject: Re: Wierd electrical fault
Posted: Mon Aug 09, 2010 9:44 pm 
Getting Side Ways
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I'd also first be checking grounds. Has he taken the dash apart lately? I think there is a main ground for the dash; it's located behind the panel you need to remove to see the tweeters. It is held by an 8mm bolt that is painted green (at least on my car). Some other common items I'd be looking at to eliminate as a cause are the brake light globes, trailer plug (if any) and the brake switch. Let us know how you go and then we can dig further.

 

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 Post subject: Re: Wierd electrical fault
Posted: Mon Aug 09, 2010 9:50 pm 
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check all you brake light globes!!!!

Have seen this one before, where the globes get that hot the tail and brake light fuses together...

Replace you brake light globes.....

 

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 Post subject: Re: Wierd electrical fault
Posted: Sat Aug 14, 2010 1:12 pm 
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Thanks guys

Got around to have a look at it today and found the tail light filament had welded itself to the brake light.

All good.

Thanks again.

 

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1998 EL XR8 Auto Hot Chilli Red. New daily and project

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 Post subject: Re: Wierd electrical fault
Posted: Sun Aug 15, 2010 12:04 am 
Getting Side Ways
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Seen that one before, glad I could help....
First time I seen it happen, I was like WTF?????

Took me ages to work it out......

 

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