GQ Headlight won't turn off

Submitted: Sunday, Sep 16, 2007 at 20:53
ThreadID: 49763 Views:2446 Replies:9 FollowUps:9
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Just replaced the headlight switch on steering column last week and today left hand headlight came on and can't turn it off so pulled the plug out of the back of light and want to know where do I start looking now?
Cheers Ray
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Reply By: robert.v - Sunday, Sep 16, 2007 at 21:01

Sunday, Sep 16, 2007 at 21:01
What was wrong with the original switch? Can you plug it back in and see if the problem goes away?

Assuming the problem started when the new switch went in, it may have been wired incorrectly to the plug.

Good luck.
AnswerID: 262560

Follow Up By: Member - Poppy (QLD) - Sunday, Sep 16, 2007 at 21:06

Sunday, Sep 16, 2007 at 21:06
Old switch just wouldn't work at all so chucked it.
Can't wire it it wrong as it has a plug in type that will only go in one way, also it has worked fine for the past week, just today light came on while parked at home
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FollowupID: 524037

Reply By: Stu050 - Sunday, Sep 16, 2007 at 21:11

Sunday, Sep 16, 2007 at 21:11
Check your spotlight wiring, there may be a wire rubbed through and feeding to the high beam light.
HTH
Stu
AnswerID: 262566

Follow Up By: Member - Poppy (QLD) - Sunday, Sep 16, 2007 at 21:20

Sunday, Sep 16, 2007 at 21:20
Stu
No spotties on the old girl and it is just low beam on left hand light, all other lights switch on & off fine
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FollowupID: 524040

Reply By: stefan P (Penrith NSW) - Sunday, Sep 16, 2007 at 21:28

Sunday, Sep 16, 2007 at 21:28
was it a new one or one from the wreckers?

If its second hand maybe remove it again and do a good clean up of any connecting pins ect, blow some dust ect out of it ect

Cheers Stefan
AnswerID: 262568

Follow Up By: Member - Poppy (QLD) - Sunday, Sep 16, 2007 at 21:37

Sunday, Sep 16, 2007 at 21:37
Yeah Stefan, 2nd hand one but gave it a good clean before I fitted it.
I would have thought that the power would go to both lights from the same part of switch, which puzzles me why everything works fine until I turn all lights off and one stays on, obviously getting a leak from somewhere
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FollowupID: 524042

Follow Up By: stefan P (Penrith NSW) - Sunday, Sep 16, 2007 at 21:43

Sunday, Sep 16, 2007 at 21:43
wish I could help more but I am no sparkie!! I know I have bad conections in my head lights on my GU (just to lazy to wire in new plugs) when the drivers turns off, my spotties come on but not with the passenger side! Hope someone with more knowlage will be come along and help you soon.

Cheers Stefan
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FollowupID: 524043

Reply By: Brian (VIC) - Sunday, Sep 16, 2007 at 21:40

Sunday, Sep 16, 2007 at 21:40
Have you checked the relays out?
AnswerID: 262569

Reply By: Brian (VIC) - Sunday, Sep 16, 2007 at 21:45

Sunday, Sep 16, 2007 at 21:45
Sometimes as the relays get older the contacts roughen up and they can "latch on" and will not turn off again, worth trying a new set of relays to see if that helps out I reckon.
Brian T
AnswerID: 262573

Follow Up By: Member - Poppy (QLD) - Sunday, Sep 16, 2007 at 22:01

Sunday, Sep 16, 2007 at 22:01
Thanks Brian, hadn't thought about that will check tomorrow, also may pull switch out again and check it out, not being electrically minded though not sure what I will be looking at
Cheers Ray
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FollowupID: 524047

Reply By: Member - desray (WA) - Monday, Sep 17, 2007 at 04:15

Monday, Sep 17, 2007 at 04:15
With the GQ you can take the switch to bits to clean the contacts inside , it was fairly common for them to play up.... One light on or not work ect
AnswerID: 262597

Reply By: Willem - Monday, Sep 17, 2007 at 08:58

Monday, Sep 17, 2007 at 08:58
Ray

On my GQ the headlight switch is a sealed unit (1994 RX) and I had no end of trouble with headlights which was discussed at length here in the forum, with a diverse lot of ideas coming to the fore. My light trouble was no High Beam in the right hand light.

In the end I replaced the headlight switch and stalk with a used one from the wreckers and that solved the problem.

Cheers
AnswerID: 262617

Follow Up By: Member - Poppy (QLD) - Monday, Sep 17, 2007 at 11:57

Monday, Sep 17, 2007 at 11:57
Willem
Had exactly the same prob as you, replaced switch and stalk too and solved problem for a week until yesterday.
Pulled the plug out from rear of light overnightto save battery plugged it back in about 1 hour ago and "HEY PRESTO" everything is back to normal,
figure that one out.. gremlins methinks.
Cheers Ray
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FollowupID: 524129

Follow Up By: Member - desray (WA) - Tuesday, Sep 18, 2007 at 00:24

Tuesday, Sep 18, 2007 at 00:24
The switch does come to bits I have have done several of them, have another look.
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FollowupID: 524306

Follow Up By: Willem - Tuesday, Sep 18, 2007 at 07:10

Tuesday, Sep 18, 2007 at 07:10
ATM if it aint broke don't fix it...lol

I am most likely to break it even further. I still have the old one so might go have a play if I get the inclination. Thanks for the heads-up

Cheers
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FollowupID: 524321

Reply By: Olcoolone- Monday, Sep 17, 2007 at 09:30

Monday, Sep 17, 2007 at 09:30
Hello Poppy, GQ's don't have relays for there head lights unless some one has fitted them.

They are pretty straight forward design, the switch for the headlights is much like a standard switch where you have power coming in from on end and it goes out the other end.

The head light switch has 3 circuits... (not including turn signals)
1) circuit is for the park / number plate lights via a 10 amp fuse
2) circuit is the left hand head light HI / Low beam via a 15 amp fuse.
3) circuit is the right hand head light HI / Low beam via a 15 amp fuse.

On the plug for the switch you should have RED wire with a BLACK trace and a RED wire with a YELLOW trace, these two wires are a 12 volt feed to you Hi and Low beam left hand head light.

I think the RED wire with YELLOW trace is Low beam and the RED wire with BLACK trace is Hi beam.

If not it will be the other way around

I would almost be 100% sure it is the switch, it is a bad circuit design.

I would strongly recommend if any one is using globes bigger then the factory 55 / 60 watt ones the should look at putting relays in with separate fuses for Hi and Low beams.

If anyone wants to know how just ask me.

Regards Richard




AnswerID: 262619

Follow Up By: Member - Poppy (QLD) - Monday, Sep 17, 2007 at 11:59

Monday, Sep 17, 2007 at 11:59
Thanks Richard, but if you read my reply to Willem you will see all seems to be ok...for now at least
Cheers Ray
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FollowupID: 524130

Reply By: Chriscd - Monday, Sep 17, 2007 at 19:40

Monday, Sep 17, 2007 at 19:40
Hey Poppy,

Dunno whether it helps -60 series Tojo - changed globes, swore, checked wiring, swore - LHS light low beam only - was advised by Tojo Mecknic to check BOTH headlight fuses - bingo - no swear.

60 series cruiser has fuse for each headlight

Seeya

C

AnswerID: 262721

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