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busdennis **
Joined: 18 Aug 2010 Posts: 53 Location: EASCT COAST
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Posted: Thu Feb 23, 2017 7:52 Post subject: headlights come on by them selfs |
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morning all.
Noticed last week the headlights were on (haven't used the cruiser for days) They turned of with the switch which was on the off position, this has append several times since and is getting more often. Its only the headlights, not the side or tail lights which is why i changed the headlight relay first but this has not worked.
if it was the light switch would it affect the tails light aswell? what would you check next?
thanks
Dennis |
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Posted: Thu Feb 23, 2017 7:52 Post subject: Google Ads keep this community free to join! |
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diggerdave ****
Joined: 03 Oct 2014 Posts: 448 Location: Bubwith
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Posted: Thu Feb 23, 2017 8:31 Post subject: |
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If it's not the switch and it's not the relay, it might be a possible earthing issue. Try cleaning the body earth point. Its a long shot, but corroded earth pconnections can cause all kinds of wacky problems _________________ 1997 KZJ90 3.0d, 2" suspension lift, 235/85/16 Cooper STT Pros. 217k hard miles |
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Roger Fairclough *******
Joined: 24 Oct 2007 Posts: 1619 Location: Redditch Worcestershire
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Posted: Thu Feb 23, 2017 11:39 Post subject: |
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Sounds like switch to me.
Roger |
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busdennis **
Joined: 18 Aug 2010 Posts: 53 Location: EASCT COAST
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Posted: Tue Feb 28, 2017 17:31 Post subject: |
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changed the headlight switch today with no success, any thoughts on the next move apart from going to see an auto electrician lol |
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andy Moderator
Joined: 16 Dec 2003 Posts: 2260 Location: Polegate, Sussex, England.
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Posted: Wed Mar 01, 2017 10:01 Post subject: |
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If it has a tow bar check the plugs. _________________ It's Not a Bl**dy Jeep it's a Landcruiser
150 series Invincible X
100 Series VX Limited
Mercedes Sprinter 311 Luton
1993 VX80 4.2td SOLD
1996 Hilux Surf SSR-G Intercooler Sold
1994 Hilux Surf SSR-V Sold |
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NeilJ Newbie
Joined: 26 Jan 2017 Posts: 2 Location: Surrey Hills
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Posted: Wed Mar 01, 2017 16:18 Post subject: |
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When this happens pull the headlight relay if they go out you know there is astray feed going to headlight relay. If they stay on they are picking up feed from after the relay. |
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DaveWall ******
Joined: 12 Nov 2007 Posts: 967 Location: Gloucestershire
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Posted: Thu Mar 02, 2017 5:44 Post subject: |
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What year is yours...?
Is this happening with the Key in the off position, or just when the engine/rest of the vehicle is on?
Any signs of previously fitted driving lights (especially if they used those horrible clamp on the wire bridging connectors, they basically cut the insulation)?
What other non standard electrics have been fitted (are there any additional wires connected to the battery for anything else)? |
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busdennis **
Joined: 18 Aug 2010 Posts: 53 Location: EASCT COAST
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Posted: Thu Mar 02, 2017 7:41 Post subject: |
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thanks all
pulling the relay turns off the lights
its a 98 prado which ive owned 10 years, everything looks standard from what i can see |
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DaveWall ******
Joined: 12 Nov 2007 Posts: 967 Location: Gloucestershire
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Posted: Fri Mar 03, 2017 5:30 Post subject: |
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I think from memory, there is a constant live feed to the switch on the end of the indicator stalk, but like you say - if the switch was shorting you would expect the rear lights to be on too - I cant think (will go try my switch later) if its two position and the first position does the sidelights then the second twist does the headlights, so there could be a short feeding +ve direct to the second position.
I think I would have the cowling off around the steering wheel and find the connector for the indicator stalk/light switch, check that all out.
Find the trigger wire for the headlights and clip a meter on it then give everything a good wiggle, see if you can power it up without actually turning the lights on
If it is happening regularly you could unplug the stalk/light switch and see if it eliminates the problem. If it does, maybe try and get some contact cleaner in around the contacts before replacing anything. |
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busdennis **
Joined: 18 Aug 2010 Posts: 53 Location: EASCT COAST
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Posted: Fri Mar 03, 2017 15:25 Post subject: |
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thanks again
could nt find a live feed to the head light stalk switch without the ignition on. with the ignition on there was a live switch for the indicators at the top part of the wiring block (green).
At the relay i had two live feeds both with and without the ignition on |
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DaveWall ******
Joined: 12 Nov 2007 Posts: 967 Location: Gloucestershire
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Posted: Fri Mar 03, 2017 15:46 Post subject: |
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Right sounds like the switch on the stalk grounds the relay to turn the lights on - so there is a short to earth between relay and switch or the switch itself shorting out.
Just to check - on your model, could you leave headlights on and turn the ignition off (I'm sure I can on my 97 UK model)
I'll have a chance to check mine on the weekend if you want me to. But start with un-plugging the stalk connector and leaving it unplugged, see if it eliminates the problem. |
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RADIOTWO ******
Joined: 18 Nov 2005 Posts: 816 Location: GLOSSOP
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Posted: Fri Mar 03, 2017 15:57 Post subject: |
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busdennis wrote: |
thanks again
could nt find a live feed to the head light stalk switch without the ignition on. with the ignition on there was a live switch for the indicators at the top part of the wiring block (green).
At the relay i had two live feeds both with and without the ignition on |
Hi
You say you have two live feeds ? is that with the relay plugged in or out ?
and what number pins are live ? _________________ 2004 Amazon 100 series
Steve |
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busdennis **
Joined: 18 Aug 2010 Posts: 53 Location: EASCT COAST
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Posted: Mon Feb 12, 2018 13:13 Post subject: |
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after changing relays and switches the problem went away until yesterday 11 months later when the problem started again, must be the time of year |
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Wildmutt ****
Joined: 11 Jul 2008 Posts: 260 Location: Hamble,Southampton
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Posted: Tue Feb 13, 2018 23:11 Post subject: |
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Hi. Have you checked that water isn't dripping onto the fuse box under the dash by any chance? You may have a leaking windscreen in the corner drivers side. Might be worth having a look under there next time its raining. The headlights on the Colorado are permanently live and the stalk switches the earth between the bulb connections to make them work. _________________ Steve
98 Colorado GX
1500 Goldwing
Keeping everyone happy is impossible. Pissing them off is a piece of cake......I like cake. |
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funkydung Newbie
Joined: 22 Oct 2018 Posts: 8 Location: nORTH yORKSHIRE
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Posted: Mon Feb 04, 2019 23:21 Post subject: |
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busdennis wrote: |
after changing relays and switches the problem went away until yesterday 11 months later when the problem started again, must be the time of year |
Hi
Did you find a solution to the problem?
This evening, I have just suffered the same symptoms of headlights turned on without switch being on. '99 colorado.( same time of year too)
by turning lights on then off, headlights go off for a few seconds then come back on (relay is heard clicking on )
any suggestions
Thanks
Richard |
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