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[Ratty]

I had a dodgy headlight switch which I replaced with one from a user on here but my dash lights don't work, they used to with the old switch, but now they even don't work with that either, it's just the instrument panel lights, switch lights, the cigar lighter and ashtray lights, infact everything that would be controlled by the dimmer, I've tried cleaning all the contacts but it's still not working.

Any idea what might be the problem? is there a fuse for them? I can't find one listed anywhere. Have I got another duff switch?

Any help appreciated, thanks

[Pete Elite]

Have you just tried pulling each fuse in turn and seeing if it's blown?

[Ratty]

not as yet, thought somebody might have known which to check, didn't check the dash lights when I put the switch in earlier, I'll go through all the fuses in the morning. Strange thing is all the other stuff is working at least everything that I can see.

[Ratty]

wanted to check the dimmer on the switches but couldn't work out which pins it runs on, assuming it works on a rheostat basis does anybody know the answer to that?

[Ratty]

Just been out and checked all the fuses they're all okay, but I've still not got any dash lights (damn hard to check in daylight)

also I checked the wiring for damage and found a lose bulb hanging down anybody know where it should be?

[Welung666]

The stray bulb is for the air vent illum.

[Ratty]

ahhh that's that mystery solved... thanks 

still haven't got any dash (or anything controlled by the dimmer) lights

[Andy H]

Is your new switch faulty too? Is it a simple task to plug the old one back in to see if the dash lights come back?

[Ratty]

Thanks Andy, but as i said in my OP the dash lights won't work with either switches in now. which made me think it was a fuse but I can't find a reference to one for that circuit.

could do with someone who knows how to read circuit diagrams and be able to tell me if i can short the connectors to eliminate a bad switch.

[Andy H]

Oops, sorry.

The GM plugs & sockets are usually good quality but it is possible for a contact to get pushed out of the back of its socket.

I once wasted a lot of time fault finding dash lights before I realised that they only come on if the ignition is on too.

[Ratty]

I've tried that too, had ignition on and engine running, I am at a complete loss.

Any auto electricians on here in Coventry? 

[Andy H]

I once wasted a lot of time fault finding dash lights before I realised that they only come on if the ignition is on too.

Oops again. Just been outside and checked on my 2003 Omega. The dash lights came on without the ignition :-?.

I did once have the situation I described above but it can't have been in an Omega

[Ratty]

hehe, wish mine was as simple switch on and shout "yay it works" but sadly...

[Ratty]

...Going back to this problem, does anybody know whether the Ident reference is critical? My original switch had an Ident of MP but subsequent replacements I've had to try have been PX and LG neither of the replacements worked so I'm trying to work out whether it is an incompatible switch or a fault on the car.

I'm supposed to be going to an Auto Sparks today and don't want to be charged for him to tell me that he can't find anything cos it's the wrong switch (he's already charged me £30 and done nothing)...

My head is hurting with this one

[Ratty]

Just been onto Brandish in Coventry and they tell me that the Ident is indeed critical which would go a long way in explaining why my dash lights won't work, Original switch knackered replacements incompatible

Gonna update my wanted post for anyone who might have the correct fitment but I'll just say it here too (if the Mods don't mind)

I need a headlight switch with an Ident [size=12]MP[/size]

part number = 90566851