The back illumination to the dash ( that comes on when you switch your lights on ) on my car isn't working. The indicators light up and main beam shows but the back lights don't. I've just checked the bulbs and they're fine. (1/00)
Do the tail lights work? If not, try the tail light fuse - I'm not absolutely sure that's where the panel lights are fused though. Do the lights in the switches (eg hazard and retractor switches and the ash tray illumination work? Or is your panel light dimmer turned down? (1/00)
Yup, tail lights work...actually just got an email saying: Check the bridge on the Front fog light switch blank. If the bridge is broken it will cut off the supply to the dash illumination. This would explain a lot as I fitted a switch for the hardtop demister to a blank last weekend..hadn't got 'round to investigating why that wasn't working yet!! (1/00)
OK disconnected switch and they still don't work. I spoke to a guy at Mazda and he said it could possibly be a faulty control mechanism....presume he means the bits that the indicator and wiper stalks go into??? Any ways of testing this??? (1/00)
I would have thought he meant the panel lights dimmer control. You should be able to bridge the wires that the unit controls - sorry can't help much beyond that - my Roadster doesn't have a dimmer, and there is no circuit diagram in the workshop manual for this bit - you need the electrical supplement for the full detail. Usually there are three connections to these units, and one (black?) is earth. Try bridging the other two with a piece of 5amp fuse wire (just in case you get the wrong ones!) (not held with your fingers!) (1/00)
As far as I know, all later cars have provision for dimming the dash lights. However not all had the dimmer fitted. but the wiring was there, just shorted out with a plug. The dimmer goes in the middle of the three switch positions on the right of the steering wheel. So if you have fitted a new switch may be you have disturbed something? (1/00)
Quite simply the circuit has been broken. You need to plug the connector back in, and Hey Presto! Far better to put the de-mister on a separate independent switch. But link it to the ignition or it will merrily drain the battery after you have left the car and forgot to switch it off. (1/00)

The back illumination to the dash ( that comes on when you switch your lights on ) on my car isn't working. The indicators light up and main beam shows but the back lights don't.

Do the lights on the switches work? If not it's probably your dimmer control. Sadly they are quite expensive, but you can probably get one from a scrapyard. I can probably check the connections for you so you can short the connector and get full brightness lights as a test. (1/00)

I have just bought my mx 5 eunos roadstar, it's a great car but since having the alarm fitted we have lost the dashboard illumination lights. can any one out there please help me? (2/00)

My guess is that you now have an indicator or LED for the alarm on your dash, where one of the unused switches used to be ? Middle switch to the right of the ignition, I think ?

On some cars, this switch is actually used for the dash-light dimmer. With cars without a dimmer, this blank switch contains an electrical connection that forces the dash lights to "full" brightness. Your alarm-fitter probably assumed it was just a 'blank', unplugged it and reused the blank for your LED without reconnecting the old wiring.

If so, you need to reconnect the blank to the wiring loom or else find some way to properly short the connector. In any case, explain this to the fitter and ask them to fix it - they will remember which connector they removed (there will be three at least behind there: rear-demist, dash-dimmer, front-fogs).

On the other hand, you may not have had your dash fitted with an indicator in which case ignore all of the above and just ask the alarm-fitter to fix it !! (2/00)

Hi I have an Eunos 1.6i '90 The backlights on the dash and on the heater controls don't work. The fuses seem OK It may be the bulbs but as both are out I doubt it. Can any one help? (12/00)
Check that the dash dimmer control or the blanking plate if you dont have the dimmer is connected correctly to the switch/blank. There is a short on the blanking plate that gives full brightness, if this becomes unplugged then the dash lights won't come on. (12/00)
Have you being messing with any of the switches on the right hand side of the steering column? On some cars there is a dimmer here, on others that don't have it, the blank switch has the wiring behind. This needs to be connected to the back of the switch or the backlights don't work. (12/00)