GolfGTIforum.co.uk

Model specific boards => Golf mk4 => Topic started by: scarr89 on 11 December 2012, 17:20

Title: No dash/instrument lights - Update
Post by: scarr89 on 11 December 2012, 17:20

My brother wired in a boost gauge incorrectly, from what he tells me I think he wired in the live and then connected it to the the other wire coming from the dimmer switch INSTEAD of earthing it...Tit.

Now his instrument lights don't work (warning lights work but not the blue glowing ones for the dials/radio), checked all fuses and they are fine. Although he popped the brake light and central locking one which will get replaced....

The coil light was flashing (130PD ASZ by the way), which led me to believe the brake light switch, but this turned out to be fine after borrowing a fuse from mums car.

Any ideas on the cluster/radio back lighting?  :sad:

Title: Re: No dash/instrument lights
Post by: scarr89 on 12 December 2012, 07:02

Possibly thinking wiring it incorrectly could have blown the dimmer switch? Going to replace and see what happens...

Title: Re: No dash/instrument lights
Post by: Wazzzer on 12 December 2012, 07:15

I'd say yes to that mate as the lights don't come on if you have the dimmer switch unplugged

Title: Re: No dash/instrument lights
Post by: Golf_GT_TDI on 12 December 2012, 08:44

I'd also go with dimmer switch, let us know how you get on?

Title: Re: No dash/instrument lights
Post by: scarr89 on 12 December 2012, 18:57

Brother borrowed mums dimmer switch and still no joy.  :undecided:

Could he has fried/pop all of the bulbs for the radio/cluster!?  :huh:

All fuses checked and replaced, everything else is working fine...Stranngeeeee

Title: Re: No dash/instrument lights - Update
Post by: Golf_GT_TDI on 12 December 2012, 20:01

Got a multimeter handy? quick test to see if you're getting voltage from the grey/blue wire from dimmer switch

Title: Re: No dash/instrument lights - Update
Post by: scarr89 on 13 December 2012, 13:58

Ok, there is power to the dimmer switch as when FULL beam put on the cluster and radio backlights come on, then when FULL beams turned off they disappear again.

I am really stumped. Will check all the wiring for a short circuit. Could it be the earthing for the dimmer switch isn't sufficient, hence why you would need full beam to make it work? Or something similar?  :undecided:

Title: Re: No dash/instrument lights - Update
Post by: harlemex on 13 December 2012, 14:22

where did he wire in the actual live?

Title: Re: No dash/instrument lights - Update
Post by: scarr89 on 13 December 2012, 14:56

Quote from: harlemex on 13 December 2012, 14:22

where did he wire in the actual live?

There are two wires coming out of the dimmer switch right? He just wired those 2 (not sure which way around) into the 2 wires coming from the boost gauge.  :sad:

He should have asked big brother eh!  :lipsrsealed:

Title: Re: No dash/instrument lights - Update
Post by: harlemex on 13 December 2012, 15:30

hmmmm tricky one. I would try them the other way around first.