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Author Topic: no dash or heater lights.....help  (Read 1550 times)

Offline justin3779

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no dash or heater lights.....help
« on: 16 July 2010, 10:27 »
hi guys i dont know whats going on, ive checked the fuses in the drivers footwell and the bulbs, they all seem fine but theres no light at all. any one had this problem and know what it is ????
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Offline rubjonny

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Re: no dash or heater lights.....help
« Reply #1 on: 16 July 2010, 10:40 »
do your number plate lights work?
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Offline justin3779

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Re: no dash or heater lights.....help
« Reply #2 on: 16 July 2010, 10:51 »
just been and checked mate, there working fine.....
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Offline rubjonny

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Re: no dash or heater lights.....help
« Reply #3 on: 16 July 2010, 11:07 »
this means the fuse and input to the dash lights dimmer knob are fine, so id say switch is broke or a wire has come adrift. looks for loose grey/white wires, also check the jumper blocks up under the dash, the grey one iirc is dash lights.

or you have the dimmer knob turned all the way down ;)
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Offline justin3779

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Re: no dash or heater lights.....help
« Reply #4 on: 16 July 2010, 12:22 »
i am officially lost sorry mate but the grey what is a what ??????? i am looking at the larger fuses under the dash right not the blades the blocks. is there a picture of what they are supposed to be like cos there seems to be a few missing ?? and how do i check if these are blown ???
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Offline rubjonny

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Re: no dash or heater lights.....help
« Reply #5 on: 16 July 2010, 13:18 »
check the fusebox faq in the mk2 section, page 2 covers the MK3 fusebox (same as post-90 MK2) it also has a list of relays and what they do.

its not a fuse problem, the dash lights and the number plate lights are running from the same fuse so thats been ruled out. so the issue is either with the dash light dimmer knob being broken or set to minimum, or a fault with the wire from the switch to the dash lights.

actually, do the switches light up?
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Offline justin3779

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Re: no dash or heater lights.....help
« Reply #6 on: 16 July 2010, 13:46 »
no they dont thinkin about it.....
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Offline rubjonny

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Re: no dash or heater lights.....help
« Reply #7 on: 16 July 2010, 15:04 »
ok yeah, looks liek a wiring fault or a problem with the dimmer switch. follow the grey/blue wire from the dimmer switch as best you can, behind the dash you should find some jumper blocks, the grey one i think is for the dash lights feed
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Offline justin3779

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Re: no dash or heater lights.....help
« Reply #8 on: 16 July 2010, 15:32 »
right, just removed the dimmer unit as i already have the clocks etc out. one of the wires ( black and white ) has been cut and then spliced into another black and white wire but apart from that i cant see anything wrong. the weird thing is when i collected the car the other night only half the clocks were lit up but now nothing at all ???
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Offline rubjonny

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Re: no dash or heater lights.....help
« Reply #9 on: 16 July 2010, 16:00 »
hmm can you follow the other black/white wire to where it goes? maybe the fuse for this wire has gone./ trouble is untill you track down where it goes you wont know which fuse it is
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