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> Blinkers... Flashers, just stopped working
falcor75
post May 16 2017, 11:04 PM
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I have a similar but still different problem.

I installed Spokes front boards about a week ago. Now when I signal to turn left or right the tach indicator light only flashes once but the turn signals keep flashing as they should.

If I turn on the emergency flasher then the indicator light flashes the whole time along with the turn signals.
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Valy
post May 17 2017, 12:11 AM
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QUOTE(malcolm2 @ May 16 2017, 07:48 PM) *

QUOTE(Valy @ May 16 2017, 08:54 PM) *

C will only flash if there is load (bulb connected) on 49A.

Do your indicators stop blinking when the dash light stops blinking?
If not, check the grounding of the indicator bulbs.

BTW, you don't have LEDs , do you?


After i re-connected the relay everything started working properly. No LEDs.

So i guess you are saying if the big bulbs are out, the dash indicator won't work either?

That was my issue on the bench. Would have needed to wire up 2 bulbs. But I don't follow the readings when the relay was mounted and the car was running. C and 49a showed voltage.

Inquiring minds want to know.


When one bulb burns, the blinking will be faster. When both burn, the dash light will not blink.

It seems you had a bad contract that caused a voltage drop at the relay. It solved itself by removing and reinstating the relay.
Clean the contacts.
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Spoke
post May 17 2017, 05:27 AM
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QUOTE(malcolm2 @ May 16 2017, 03:02 PM) *

QUOTE(Spoke @ May 16 2017, 01:23 PM) *

Yes, with one bulb load the relay should flash.



Good News, Bad News, I guess...

the relay worked on the bench. Using 49a I got a bulb to flash and of course the relay clicked.

I know you said not to worry about the C terminal, but for giggles, I put the bulb connection on the C term and nothing happened.

is that expected? Or maybe half of my relay is bad? (IMG:style_emoticons/default/blink.gif)


OK, sounds like your flasher is working. If it flashes with one bulb connected it is functional.

About connecting the bulb to C (I assume from C to ground), in your car there is always a bulb connected from C to ground ('74-'76 914 only). It is the bulb in the tach. This is why I said don't worry about the C terminal until you test the flasher functionality.

Now that you've proved the flasher works, to test C, connect power to 49, ground to 31, a bulb to 49a to ground, and a small marker bulb between C and ground.

C should light the marker bulb when the flasher is flashing.
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Spoke
post May 17 2017, 05:32 AM
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QUOTE(malcolm2 @ May 16 2017, 06:37 PM) *

I release the brake and the clicking and flashing stops.


Now you may be getting closer to your issue. Brakes are not connected to the flasher system at all. Note the schematic I posted has no components or connections to the brake system.

I would guess there are some grounding or other wiring issues in your car. The flasher does not seem to be 100% the culprit.
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Spoke
post May 17 2017, 08:29 AM
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QUOTE(falcor75 @ May 17 2017, 01:04 AM) *

I have a similar but still different problem.

I installed Spokes front boards about a week ago. Now when I signal to turn left or right the tach indicator light only flashes once but the turn signals keep flashing as they should.

If I turn on the emergency flasher then the indicator light flashes the whole time along with the turn signals.


Hi Mats,

Do you have a single L-R tach turnsignal indicator or the separate L and R indicators?

The indicator light not flashing is common when switching to LED turnsignals. Since the flasher has a dual function of turnsignal flasher and brake warning flasher, the C pin which drives the tachometer turnsignal indicators does not activate when the brake warning flasher function is used (ebrake or MC warning switch active).

Thus when you change to LED turnsignals, the circuitry driving the C pin doesn't fully engage and thus doesn't flash when you put the L or R turnsignals on. For 4-way flashing, the load of all the LED turnsignals (Front and rear, right and left) is enough to activate the C-pin.

Generic flasher EP26 is pin compatible with the 914's flasher. The difference is the C-pin is not functional in the off-the-shelf EP26. I have EP26 in stock and I modify EP26 to drive the C-pin.
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malcolm2
post May 19 2017, 08:10 AM
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QUOTE(Spoke @ May 17 2017, 06:32 AM) *

QUOTE(malcolm2 @ May 16 2017, 06:37 PM) *

I release the brake and the clicking and flashing stops.


Now you may be getting closer to your issue. Brakes are not connected to the flasher system at all. Note the schematic I posted has no components or connections to the brake system.

I would guess there are some grounding or other wiring issues in your car. The flasher does not seem to be 100% the culprit.


There is only one flasher relay in the car. The brake light flashes and it clicks until I release the hand brake, so it has to be connected to the flasher relay, right?

Your diagram and this one..... show the brake light getting 12v from 49a? Am I reading that right? I have backdated my tach and have R and L blinker lights, so my set up is close to this.

Attached Image
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LowBridge
post May 19 2017, 08:39 AM
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This post is way to long... simple answer as we have this problem all over New England... your blinker fluid is just low, so fill it up and the problems will go away. for every ones convenience I have attached a coupon (IMG:style_emoticons/default/lol-2.gif)
(IMG:http://www.914world.com/bbs2/uploads_offsite/i219.photobucket.com-19045-1495205453.1.png)
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Spoke
post May 19 2017, 11:57 AM
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QUOTE(malcolm2 @ May 19 2017, 10:10 AM) *

QUOTE(Spoke @ May 17 2017, 06:32 AM) *

QUOTE(malcolm2 @ May 16 2017, 06:37 PM) *

I release the brake and the clicking and flashing stops.


Now you may be getting closer to your issue. Brakes are not connected to the flasher system at all. Note the schematic I posted has no components or connections to the brake system.

I would guess there are some grounding or other wiring issues in your car. The flasher does not seem to be 100% the culprit.


There is only one flasher relay in the car. The brake light flashes and it clicks until I release the hand brake, so it has to be connected to the flasher relay, right?

Your diagram and this one..... show the brake light getting 12v from 49a? Am I reading that right? I have backdated my tach and have R and L blinker lights, so my set up is close to this.

Attached Image


I wrote:
Brakes are not connected to the flasher system at all.

You wrote:
Your diagram and this one..... show the brake light getting 12v from 49a?

You are right and I am not exactly wrong. (IMG:style_emoticons/default/beerchug.gif) The brake light getting 12V from 49a is the brake warning indicator lamp in the multi-gauge unit which includes the fuel gauge.

As far as the brake pedal and the exterior brake lights are concerned, there is a connection between the exterior brake lights and the rear turnsignals. The connection is the connection of the ground circuit in the rear lamp fixtures on the vehicle.

Both turnsignal and brake lights share a common ground. If that ground is somehow compromised, related issues could happen. Also it could be with the rear light fixtures that the 5 spade connectors are incorrectly connected. I have mis-wired the rear fixtures a couple of times. Probably why there are many threads with folks asking which wire goes on which terminal on the rear light fixture.


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malcolm2
post May 19 2017, 12:22 PM
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Great.... I think we were both right, just referring to different parts. Thanks for your help.

It was a mystery that needed to be repaired, and it mysteriously repaired itself.

I wish that would happen more often.
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