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Old 02-10-2020, 01:21 PM   #1
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Location: Martinez,CA
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Turn Signal Flasher

I thought my moho did not have turn signal flasher because I never heard one.
The other day I was working under the dash and guess what I found the flasher.It does make a noise but I don't think anyone could hear it.
So my question is what do you all use to make it louder?
There must be a two prong flasher out there?
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Old 02-13-2020, 04:31 PM   #2
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Originally Posted by rvtips View Post
I thought my moho did not have turn signal flasher because I never heard one.
The other day I was working under the dash and guess what I found the flasher.It does make a noise but I don't think anyone could hear it.
So my question is what do you all use to make it louder?
There must be a two prong flasher out there?
About 15 years ago a half-deaf friend of mine had the same issue with his 1981 Chevy Suburban... I solved it for him using a couple of cheap diodes, some wiring and a Mallory Sonalert - it's a loud industrial signalling beeper that's made for anything from 6 to 24 volts... It's about an inch to 1.5 inches in diameter and about an inch long... not waterproof but otherwise pretty much indestructible...

Look at the diagram below... the bottom represents the underdash wiring... the lines coming upwards represent the wires going to the dashboard turn indicators on the dash, or the left and right front bumper turn signal lights (either will work).
The diodes are common 1N4002 1N4003, 1N4004, 1N4005, 1N4006, or 1N4007, any of those will work, you will need two.
The Sonalert is a plain SC628 model. There are a number of them with letters after the 628, DO NOT use anything but a plain SC628. They are under $10 on ebay (you can get the diodes there also). The Sonalert is polarized, the + side goes to the diodes, the - side to ground.

You need to find the wires that drive the dashboard turn indicators in the wiring mess under the dash, the easiest place to connect was the wiring from the turn signal switch on the steering column to the dash cluster. He found the wire by using the Sonalert itself,... just ground the negative lead, and connect the positive connection to a piece of wire clipped to a sewing needle... Just turn on the key, move the turn signal lever for a left turn, poke each wire until you found the one that goes beep-beep-beep in step with the dashboard turn indicator and is not affected by the brake pedal is the one you want. Then repeat the process with the right turn signal. Tap those two wires with the diodes... You want the banded end of the diodes connected together and to the + side of the Sonalert.

Note the Sonalert is LOUD, it's made to be an industrial alerting unit. Even my half-deaf friend Ed had to use a small piece of duct tape across the active end of the Sonalert to muffle the sound. At first the tape was too much, he just poked more holes with the sewing needle until it was loud enough. My thought was thinner tape, or a 500 ohm volume control... but he was VERY happy with poking holes in the tape.

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Old 02-13-2020, 07:59 PM   #3
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There are a lot of two prong flashers on Ebay. I just replaced the two I have so I could use LED lights and turn signals.

They do make noise. Some will not, usually the solid state type will not make noise. Also keep in mind, some flashers are polarity driven. You can buy ones that will work either way.

My MH requires two flasher. My first one I used the EF32RLNP flasher that was universal to both polarity. The second one, I thought I would just try the normal EF32RL, and it worked perfect.

Type these numbers on EBAY and you will get lots of results. My MH is a Workhorse P32.
2005 Damon Daybreak 3070 Workhorse P32 8.1 eng
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