lights... what the!?
#1 _oikurtman_
Posted 05 July 2006 - 07:47 PM
the main problem is though, headlights, blinkers, stereo and starter motor all work, but i have no brake lights, tail lights, number plate light, dash lights, or horn.
all fuses are fine. there are two green wires left in the engine bay, not sure where they go or what they do.
can anyone help me? please!?
cheers.
#2
Posted 05 July 2006 - 07:52 PM
#3 _oikurtman_
Posted 05 July 2006 - 08:04 PM
cheers
#4 _devilsadvocate_
Posted 05 July 2006 - 08:05 PM
Yes, this is where Id go 1st, if no voltmeter, use a testlight.Do you have power to both sides of the fuses?
From the sounds of it the live sources on the fuse panel are not getting a 12 V supply. If you have a multimeter check the voltage between the fuse terminals and earth for the stop and park lamps fuses.
If this is confirmed as no voltage present, then the failure to this point needs to be investigated. There should be a very large diameter red wire that supplies the power bar for these bank of fuses, it will go back to the headlight switch and joins another red wire which should then make its way to the ignition switch. Check the connection of this wire/integrity of join at the headlight switch(where it attaches to the switch will be the point where your headlamps are getting its 12V they are working, so we know there is power in the wire up to that point)
My circuit diag of the LH/x is a little blurry, and im going off the UC one here, but Im 99% confident this part of the fuse panel, ign and headlight switch are exactly the same. The power fuse for your dash lights is supplied downstream from the headlight switch and it should be rectified by fixing the above.
Let us know how you go.
Edited by devilsadvocate, 05 July 2006 - 08:07 PM.
#5 _oikurtman_
Posted 05 July 2006 - 08:29 PM
all worked with the test light except the 'inst lts' both terminals and the 'horn/stop/park/dome' left terminal...
any ideas?
cheers.
#6 _devilsadvocate_
Posted 05 July 2006 - 08:39 PM
#7 _oikurtman_
Posted 05 July 2006 - 08:44 PM
#8 _devilsadvocate_
Posted 05 July 2006 - 08:54 PM
Another test, put the fuse so that one end is on the good end and the other end is pointing straight out towards you, put the test lamp between the end pointing at you and the body, does it light up?
Edited by devilsadvocate, 05 July 2006 - 08:57 PM.
#9 _oikurtman_
Posted 05 July 2006 - 08:59 PM
#10 _oikurtman_
Posted 05 July 2006 - 09:07 PM
#11 _devilsadvocate_
Posted 05 July 2006 - 09:08 PM
#12 _oikurtman_
Posted 05 July 2006 - 09:10 PM
if i test the right terminal to earth, thers light.
left terminal to earth, nothing
left terminal to right terminal, nothing
left terminal to right terminal with fuse in, nothing.
#13 _oikurtman_
Posted 05 July 2006 - 09:13 PM
#14 _devilsadvocate_
Posted 05 July 2006 - 09:22 PM
Edited by devilsadvocate, 05 July 2006 - 09:23 PM.
#15 _oikurtman_
Posted 05 July 2006 - 09:25 PM
how come the right terminal works regardless of whether the fuse is in or not, whereas the left doesn;t work at all?
#16 _devilsadvocate_
Posted 05 July 2006 - 09:34 PM
So please do the last test suggested.
Edited by devilsadvocate, 05 July 2006 - 09:37 PM.
#17 _oikurtman_
Posted 05 July 2006 - 10:34 PM
thanks for your help devil's.
#18 _devilsadvocate_
Posted 06 July 2006 - 01:16 AM
#19
Posted 18 July 2006 - 01:32 PM
With the fusebox, you basically have two rows of fuses. From memory, every single fuse in an LC or LH series Torana is powered from the inner connection, ie the side of the fuse that is closest to the centre of the fusebox. Therefore when you test the inner connection of the fuse or fuse holder, you will always see +12 volts if that particular bunch of circuits is active. Some of the fuses are always active, such as the stop/tail/dome/horn, and some only become active when you turn the ignition key, such as the heater, radio, etc.
The fuses when in place connect the inner connections on the fusebox with the outer connections on the fusebox. All of the outer connections are the ones that supply power to the various circuits - you will not see any voltage on these unless there is voltage on the corresponding inner conector, and the fuse is in place and not blown.
Hope that helps to explain what you were measuring. With the two green wires, if they are a light green and a dark green pair, they are probably for your reversing lights, and you will have a corresponding switch for them on your gearbox, shifter or bottom of steering column, depending on what type of trans and shifter you have. If it's a single dark green wire and it's a factory one, it's probably your temperature sender wire.
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