12v 1uo941243c Relay repairable?

[bohaboha]

Is it possible to repair this relay?
the three resistors look like they have purple color on the bands is that correct? and one of the small diodes is broken. i ask because it is said that normal relays are not serviceable

[petehall347]

Re: 12v 1uo941243c Relay repairable?

easy to fix or even fully rebuild if the mood takes you .

[eccerr0r]

Re: 12v 1uo941243c Relay repairable?

what the heck...what's the switching element in this "relay" ... why aren't these diodes and resistors potted with the rest of the circuitry if there's more in the base?

Without more data...that can't be a relay even if the encapsulation looks like one.

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Seems this PN crosses to other relays but no specs found yet. Probably has parts embedded in plastic (SSR) making it that much harder to replace the switching components if they're there.

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

easy to fix or even fully rebuild if the mood takes you .

Thanks for the reply. can you confirm the colour of the resistor? yes it looks to be. but what is under the surface? I don't see anything special other than the traces under a black cover hard to show with pictures

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

what the heck...what's the switching element in this "relay" ... why aren't these diodes and resistors potted with the rest of the circuitry if there's more in the base?

Without more data...that can't be a relay even if the encapsulation looks like one.

---

Seems this PN crosses to other relays but no specs found yet. Probably has parts embedded in plastic (SSR) making it that much harder to replace the switching components if they're there.

yes it is a relay that belongs to a scoda octavia. "Probably have parts embedded in plastic (SSR) which makes it much more difficult to replace the clutch components if they are broken." exactly what i was thinking but there doesn't seem to be more than traces in the plastic protection

[eccerr0r]

Re: 12v 1uo941243c Relay repairable?

Take a photo of it in sunlight...

You know, maybe we need to start poking people to do this when they take pictures of resistors asking what color bands they are, so we don't have to trust the CRI of their light source as well as the "CRI" of the photosensor... enough trouble as it is that our monitors tend not to be color calibrated either.

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

[QUOTE=eccerr0r;1166070]Take a photo of it in sunlight...

You know, maybe we need to start poking people to do this when they take pictures of resistors asking what color bands they are, so we don't have to trust the CRI of their light source as well as the "CRI" of the photosensor... enough trouble as it is that our monitors tend not to be color calibrated either.[ You're right, but right now I can't trust my eyes. it's 4 bands not 3 as I said before

[diif]

Re: 12v 1uo941243c Relay repairable?

You could remove one and measure it's resistance.

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

You could remove one and measure it's resistance.

I'll thank you

[eccerr0r]

Re: 12v 1uo941243c Relay repairable?

You're right, but right now I can't trust my eyes. it's 4 bands not 3 as I said before

Might be easier to see the colors in sunlight too, it's not only cameras that benefit from better CRI!

[redwire]

Re: 12v 1uo941243c Relay repairable?

Oh, I see the PC board trace is melted and lifted up, it must have fused due to a short circuit in the car somewhere. It might have also blown a 1N4004 diode.
The resistors are not a problem, I see the middle as gray-brown so possibly 680Ω the first stripe I thought purple but no parts exist like that i.e. 780Ω.

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

Oh, I see the PC board trace is melted and lifted up, it must have fused due to a short circuit in the car somewhere. It might have also blown a 1N4004 diode.
The resistors are not a problem, I see the middle as gray-brown so possibly 680Ω the first stripe I thought purple but no parts exist like that i.e. 780Ω.

ya there is a broken IN4005 but I measure 180 ohm po resistance with a lifted foot. In4005 Sy309 is the 2 small diode one is blown

[redwire]

Re: 12v 1uo941243c Relay repairable?

You know I'm saying the copper track has melted
There is a problem with the car. It will just blow the relay once you repair it.
OK the resistor first stripe is brown then for 180Ω, and they are 1N4005 and a 1N5404.

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

You know I'm saying the copper track has melted
There is a problem with the car. It will just blow the relay once you repair it.
OK the resistor first stripe is brown then for 180Ω, and they are 1N4005 and a 1N5404.

"You know I say the copper strip has melted." you mean on the relay itself ?
ok you say there is a problem with the car. Do you have any idea what the problem could be in the car? lol now we are going from elektronic to car mecanique but note that i don't see any abnormality on the traces that are remotely visible on the cap

[redwire]

Re: 12v 1uo941243c Relay repairable?

Yes, inside the relay the track looks to have melted. I would say it was overloaded- which melts the PCB trace and pops the diode.
I would say a new relay or fixing this one and it will just melt again.
There must be a short circuit, such as a light bulb (socket) or cheezy LED lighting added to the car, or maybe some damaged wires. I can't tell what goes to the cracked diode.
Can you post a clear picture of the circuit board trace side AND the relay pins (numbers). Do you have a wiring diagram for any of the car that involves the relay?

Škoda Octavia - 1U0941243C, AEV0306, VK7 relay, it seems to be for the power door locks (was the car in an accident?) and alarm system?

[stj]

Re: 12v 1uo941243c Relay repairable?

door lock motors sieze or jam,
i'v replaced a number on ford and bmw - total shit
it's a tiny brushed electric motor with a BRASS gear on it driving a PLASTIC rack that extends or retracts.

i cant see one drawing enough current to do that though.
i'v never seen a bad one damage anything.

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

Yes, inside the relay the track looks to have melted. I would say it was overloaded- which melts the PCB trace and pops the diode.
I would say a new relay or fixing this one and it will just melt again.
There must be a short circuit, such as a light bulb (socket) or cheezy LED lighting added to the car, or maybe some damaged wires. I can't tell what goes to the cracked diode.
Can you post a clear picture of the circuit board trace side AND the relay pins (numbers). Do you have a wiring diagram for any of the car that involves the relay?

Škoda Octavia - 1U0941243C, AEV0306, VK7 relay, it seems to be for the power door locks (was the car in an accident?) and alarm system?

redwire I don't want to disagree . but the tracers look to be intact and equally thick across the small circuit and no deviation. it's really hard to show in the picture. No I don't have information because I can't find anything about this car it's my own. now I know about this relay thanks to your information.

[stj]

Re: 12v 1uo941243c Relay repairable?

before it failed, did all your doors lock and unlock reliably?
including the fuel filler cover?

[bohaboha]

Re: 12v 1uo941243c Relay repairable?

before it failed, did all your doors lock and unlock reliably?
including the fuel filler cover?

no problem att all with doors

[petehall347]

Re: 12v 1uo941243c Relay repairable?

think those relays are also used for dash lights