"lights On" Warning Buzzer

[Maestro]

Hi

could any one tell me which is the easiest way for me to wire in a 12v electric buzzer into a 1994 maestro clubman 1300? ive got a 2 wire buzzer already.

Cheers Jordan

[jedmiller]

I thought there was a simple relay you could install into a Maestro that'd make it so you've got a headlight buzzer... If you wire it to the lights on warning light, it'll be buzzing all the time you're driving. The relay will take a signal from the door switch, then from the light circuit. If both are true, then make the noise.

[mgdavid]

can you not simply swap the relay for the one from the MG versions - which had the buzzer built in? Part number EEP0170.

[G51 NAV]

I didn't think it was a straight swap on a Maestro, unless someone knows for sure. No MG Maestro I've owned - EFi, 2.0i nor Turbo - had it.

[E_T_V]

Simple enough to fit one though from scratch.

You need a diode too though.

Pick up a light feed (red/black is the easiest) to the positive on the buzzer
Pick up the switched earth supply from the drivers door switch and fit via a diode to the negative terminal.

You may need to add an additional diode to the original wiring to prevent the buzzer operating when a passenger gets out with the light on, but personally I rarely bother as I can put up with the inconvenience.

[mgdavid]

I didn't think it was a straight swap on a Maestro, unless someone knows for sure. No MG Maestro I've owned - EFi, 2.0i nor Turbo - had it.

they were standard on MG Montego, not sure if Efi or Turbo or both. Might have just been turbos. I had a few in the box and the Metro lads have almost drained me of them, just one left.

[G51 NAV]

Indeed. I had a good friend (RIP) who had the same on his Countryperson estate, and it had courtesy-lamp delay as well. I'm just sure that I've read somewhere that they're not plug-and-play on a Maestro; you need to mod the wiring a bit. It would be nice to have a definitive answer.

There surely must've come a time when Maestro/Monty looms became near enough one and the same. It's a bit daft to have two different looms on such similar cars, especially in the later years when the Maestro got the Roverised dash. So maybe on those cars it's a simple swap, if it isn't so on previous cars.

[Piggy Bank]

You don't need a diode when you connect the negative terminal from the buzzer to the switched life side of the ign. switch (auxilary circuit)
When the lights are on you have 12v on both sides of the buzzer and no current. When you switch off ign. with the lights on, the buzzer can earth via the consumers fed by the ign switch. I did it this way and it works. Most of these small buzzers have a short life however.

[Austin-Rover]

I have an aftermarket lights on buzzer fitted in my Maestro. It sounds when you turn the key to the '0' position when the dipped beam is still on.

[E_T_V]

You don't need a diode when you connect the negative terminal from the buzzer to the switched life side of the ign. switch (auxilary circuit)
When the lights are on you have 12v on both sides of the buzzer and no current. When you switch off ign. with the lights on, the buzzer can earth via the consumers fed by the ign switch. I did it this way and it works. Most of these small buzzers have a short life however.

Yes you can do it that way too but it'll be very annoying if and when you leave the car with the (side)lights on waiting for someone for example. As the buzzer will go all the time rather than just when the door is open.