"Quiet" feed for reversing buzzer - Motorhome Forums, Motorhome Discussion, Motorhome Chat

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post #1 of 6 (permalink) Old 16-08-2020, 09:45 Thread Starter
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"Quiet" feed for reversing buzzer

Hello
I have fitted a number of vehicles over the years with reversing warning buzzers and have had few problems. The latest ones have all had the "quiet" feed to cut the buzzer out at night time/in quiet campsites. They are (or have been) just as easy to fit: Earth to chassis; live to reversing light; and "quiet" feed from rear sidelight.

On the current motorhome (Pilote G781) though there seems an issue. The rear lights are all LEDs but I don't see a problem with them - they are all 12volt LEDs. The rear side lights are dual purpose i.e. rear light and brake light in the same fitting. I identified the '+ve' to the rear light with a volt meter and connected to that. I tested it with the ignition on and the side lights 'off' and then 'on'. Things functioned correctly but when I started the engine and re-tested it the lights being 'on' made no difference, the buzzer kept sounding. There are no rear running lights with the engine on but if there were that would reverse the fault!

Has anyone an idea? The only difference that I can suggest it that the battery voltage will be higher with the engine running but that should not affect the device which I guess responds to a voltage not an exact <13 volts. Is it an LED issue?

HyFy
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post #2 of 6 (permalink) Old 16-08-2020, 14:19
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post #3 of 6 (permalink) Old 16-08-2020, 14:22 Thread Starter
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Hello again,

I've tried a new "earth" - no change. I've tried a non-LED feed for the "Lights-on" - no change. I then tried a separate battery as a dummy feed for the "lights on" wire and the buzzer then worked properly. I thereford suspect a faulty buzzer which won't work if the "lights on" feed is over, say, 13 volts.

HyFy
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post #4 of 6 (permalink) Old 17-08-2020, 08:07
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I've never heard before of a MH having a reversing beeper.

Surely with mirrors and rear camera it's not really necessary.

Has something happened in the past to make this essential kit for you?

I'm daft and proud of it.
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post #5 of 6 (permalink) Old 17-08-2020, 08:42
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It's to get the attention of bystanders to watch how you reverse onto your pitch.

Ray.
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post #6 of 6 (permalink) Old 17-08-2020, 15:21
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Quote:
Originally Posted by raynipper View Post
It's to get the attention of bystanders to watch how you reverse onto your pitch.

Ray.
Haha, you’re a caution, you are.
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