TURN SIGNAL FLASHER

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John_Aldrich
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Joined: Wed Mar 13, 2019 10:46 am
First Name: John
Last Name: Aldrich
* REQUIRED* Type and Year of Model Ts owned: 1915, 1923. 1927
Location: Kapowsin WA

TURN SIGNAL FLASHER

Post by John_Aldrich » Sun May 04, 2025 3:43 pm

Installing a turn signal flasher on my 27 Touring. Pretty simple schematic or wiring diagram if you prefer.

Once installed and system powered up the turn signals both work correctly.

When the turn signals are NOT on, the flasher "buzzes" and none of the turn signals are on or flashing.

What's going on?
John Aldrich
Typical Model T Addict

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TRDxB2
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First Name: Frank
Last Name: Brandi
* REQUIRED* Type and Year of Model Ts owned: Speedsters (1919 w 1926 upgrades), 1926 (Ricardo Head)
Location: Moline IL
Board Member Since: 2018

Re: TURN SIGNAL FLASHER

Post by TRDxB2 » Sun May 04, 2025 5:42 pm

Would help to see your wiring diagram and what flasher your using.
When the turn signals are not "on" are you lights on.
The past is a great place and I don't want to erase it or to regret it, but I don't want to be its prisoner either.
Mick Jagger

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varmint
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* REQUIRED* Type and Year of Model Ts owned: October 26, 1926 Coupe
Location: New Orleans, LA
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Re: TURN SIGNAL FLASHER

Post by varmint » Sun May 04, 2025 8:00 pm

I installed ours two months ago but I hear a lack of information.

Just some general questions:

Is it an electronic flasher or thermal?
Does the flasher have it's own ground wire?
Does it buzz then head lights are ON? OFF?
Does it buzz then the engine is ON? OFF?
Are you using incandescent or LED bulbs?
Are you using two separate sockets per side or a double element socket for parking and turn?
Have you proven that every ground works with a VOM?
If you already have another flasher, have you swapped it out?

I had a problem and it turned out to be the LED bulbs that were back feeding turn signal voltage into the parking light circuit.
Vern (Vieux Carre)

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