Issue with blinking F4 Mirrors - MVAgusta.net
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post #1 of 13 (permalink) Old 07-30-2019, 07:26 AM Thread Starter
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Issue with blinking F4 Mirrors

Hi guys,

I have a 2010 F4 and noticed that my right turning lights were flashing very fast whereas the left ones were OK. Turned out that my Front Right was not blinking at all and my Rear Right was OK, just blinking faster.

To make sure it was not the relay, I swapped the front mirrors and the issue was moved to the other side => My right front mirror was the problem.

I noticed that the negative wire was damaged so welded it to make sure there was a good conection. When I plugged the Front Right mirror back, I noticed that the LED barely light up. How is that even possible? This means that there is definitely electricity going through but not enough? I have tried removing the mirror itself to get access to the electronics t see if there was not a messed up fuse, but was unable to remove the mirror itself.

Is there anything you would suggest? Thanks for your help.

G.
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post #2 of 13 (permalink) Old 07-30-2019, 09:22 AM
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You have a bad solder joint
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post #3 of 13 (permalink) Old 07-30-2019, 11:55 AM
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Nothing inside the mirror, just the wires and socket for the bulb which you can get to from the blinker lens.

As George says, bad solder joint. High resistance = voltage drop = dim light.

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post #4 of 13 (permalink) Old 07-30-2019, 12:56 PM Thread Starter
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Thanks guy, keep in mind they are LED lights so not sure how that could happen. Also, all 3 LEDs are weak. Would that bad soldier join be inside the blinker itself?
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post #5 of 13 (permalink) Old 07-30-2019, 01:29 PM Thread Starter
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Forgot to mention but the connectors (male and female) are damaged so might be the cause.

If you guys ever wonder what connectors Ducati, MV Agusta and KTM use, they are this reference: 02T-JWPF-VSLE-S (female) and 02R-JWPF-VSLE-S (male). They are called "JWPF Connectors" and they are cheap as chips (although you need to buy them 10 at once) and you can get quite a few for the price of only one on ebay...
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post #6 of 13 (permalink) Old 07-30-2019, 07:26 PM
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Damaged connectors bad solder joint (same thing) or something in the circuit that is dropping voltage (resistance).

I used to be fast....now I just dream about it.
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post #7 of 13 (permalink) Old 07-31-2019, 02:48 AM Thread Starter
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Thanks, I have ordered a few connectors so will try to swap and let you know if that fixes the issue. I hope it does as it is becoming hard to get MV spare parts these days...
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post #8 of 13 (permalink) Old 07-31-2019, 05:28 AM
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In your original post you said you welded the negative lead. I assume you mean soldered. That solder joint is probably the problem
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post #9 of 13 (permalink) Old 08-04-2019, 07:23 AM Thread Starter
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Quote:
Originally Posted by number2 View Post
In your original post you said you welded the negative lead. I assume you mean soldered. That solder joint is probably the problem
Indeed, I soldered it, because the plastic around the wire was open and most of the metallir wire were cut off. I soldered well after I had the issue and assumed that making a proper conection would solve my issue, which it die not. What I noticed though is that electricity flows between the positive and negative connectors, which is not the case when I test the blinker that works. That makes me believe the connector itself, which is broken, is creating a short circuit.

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post #10 of 13 (permalink) Old 08-06-2019, 07:33 AM Thread Starter
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Managed to find what the issue was... As per this picture of the inside of the blinker printed circuit (a real pain to dismantle it by the way), I found a moving part (at the tip of the screw driver) which seems to have broken and I have no idea what it is. I am not an electronic guy so was wondering if any of you knew what this would be? If I know what that is, I would be able to buy a new one and solder it back (just to try and see if that works).

https://drive.google.com/open?id=1-G...s22_LECpmZA379
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