Skoda Superb estate 2.0 mkii FL (2014).

 

Blower motor fan (for climatronic car - associated with fuse 22) isn't working.

 

I have had tested the voltage with a multimeter and the thick brown wire is reading nothing.

 

I assume that the wire is broken somewhere and will either need replacing back to the fuse box or repairing if the damage is obvious.

 

Can anyone tell me what this wire is for and what voltage it should be reading?

 

And, what is the cable guage and amperage rating?

 

 

FYI - this connector in the picture plugs in to the blower motor underneath passenger side glove box (RHD) heater blower climatronic 

 

Thanks for any info at all!

Brown wire is chassis earth, so no voltage is what you should expect.

Thanks @Breezy_Pete. Very helpful, based on that, I've further refined the issues.

 

I mentioned above I assumed it could be a broken wiring issues due to the 40a (fuse 22) burning out (the fuse for some reason did not pop)

 

From the same photo I'm now wondering what voltage the thick Red and white wire should be. When the car is on its current reading 3.15v.

 

the small black and white wire's voltage goes up, when fan speed is set to higher, and down when it's turned lower - I assume that is normal for that wire.

 

The cables From the resistor (that is connected to the fan) to the fan doesn't show any voltage reading at all.

 

My current assumption is that the resistor on the fan has died - but that still wouldn't explain why the fuse melted previous, would it?

The issue is 'resistance', as current flows through resistance. If the resistance is high, due to a failing fan motor / resistor, even if the current is below the fuse rating it will cause it to overheat.  

Edited 11 February, 20233 yr by Smart Pro

@Smart Pro and @Breezy_Pete thanks very much to both of you. I believe I've managed to find the problem, with both of your help.

 

I'll add more info for anyone else searching for a similar fix 

 

Once I replaced the 40a fuse (fuse 22 in the internal fuse box) and tested all the voltages of the wires - it turns out that the offending part was the resistor on the replacement Eurocarparts heater blower which I'd not long replaced. Changed for a new one and we are once again blowing air! - however

 

In the process I've managed to light up the dash with warning lights...

 

I think I left the battery disconnected for too long (possibly shouldn't have totally disconnected it at all? 🤔) and now a bunch of lights have come up on the dash. 

 

-traction control light

-the steering wheel icon (?) Light

- another I can't recall currently.

 

any easy way to reset or clear those lights?

 

 

 

I expect just driving the car may clear these fault indications after a short while. 

Unless one is the Airbag light, which would require VCDS or similar to reset.

As Pete said, a short drive will clear the lights.