I have a Skoda fabia VRs 2004 asz engine each time the ignition is turned of fuse 7 (5) pops instantly unplugged all power steering wires but can’t find what links to fuse 7 can anyone help?

Try unplugging the MAF sensor, that appears to share fuse 7.

Still no luck with it unplugged I am getting an engine code for the maf sensor though and also a communication (p0600) not sure if that’ll help

I'm assuming the car doesn't have an oil level sensor in the sump? That would be on fuse 7 if present.

If not, check for wiring damage in the vicinity of the MAF connector and the 14 way connector adjacent to the left (UK nearside) suspension turret, where the feed from fuse 7 comes through pin 11 on a black/yellow wire.

If none found, try unplugging the two halves of that 14 way, to establish whether the short is before or after that point.

Edited 7 November7 Nov by Breezy_Pete

Will try tomorrow thanks can anything connected to fuse 7 pop it when the ignition is switched to accessories if so could I potentially have a list not a lot on google which I can find

I u plugged that 11 pin connector and the fuse didn’t pop straight away maybe 1 step closer?😁

Good start.

No oil level sensor in sump?

On 07/11/2026 at 14:52, Benwad2007 said:

Will try tomorrow thanks can anything connected to fuse 7 pop it when the ignition is switched to accessories if so could I potentially have a list

List is what I have told you already:

Power steering pump

MAF

Oil level/temperature sensor if fitted.

There could also be wiring damage shorting the black/yellow wire to chassis (or even another wire possibly).

Edited 8 November8 Nov by Breezy_Pete

Don’t think I do haven’t checked if not what’s the way forward because I am also getting a code from the obd for the maf but unplugging that connector has stopped the fuse does that mean it’s on the other side of the connector (female) or closer to the battery

Do you have a multimeter?

I do have a multimeter yes

OK, with those 14 way connectors unmated use meter set on dc volts to work out which half of the connector has pin11 at 12V when ignition is on. I'd imagine it will be the side with female contacts rather than pins.

Then put that connector aside and on the other half measure resistance from pin 11 to battery negative. See if it looks like a dead short.

Then unplug MAF, PAS 4-way connector and oil level sensor if found and see if that short is gone.

If it has gone, reconnect those items one by one to see which is causing trouble.

Finally getting round to doing this today with work and it getting darker at night will try now

One side says 12v (female) the other says 0

When you say a dead short would you say that when I put it on the pin it would read 0 volts? I kind of assumed that because it’s not connected to the other side which supplies the power? Kind of confused sorry

Once you know which the load side is (0V from first measurement), you are then switching meter to measure resistance (Ohms).

From that pin where there was OV, to chassis or battery negative. Report that number.

A dead short will read 0 Ohms (and so cause fuse to blow if connected).

Edited 1 hour ago1 hr by Breezy_Pete

Ah right I see what number ohms should I be on it’s went a bit rainy at the moment so I can’t do that now am I also correct in saying that PIN number 11 is the black and yellow one?

The lowest range of Ohms, probably 200.

Yes, pin 11, black/yellow wire.

Set it to 200 ( not 200k) and just stays at 1 doesn’t budge am I correct in putting it onto the male end with the pins

Here I have attached a photo of my multimeter

Yes, pin 11 of the male connector, if that was the one that measured 0V on first test.

Is that with MAF connected or unplugged?

The H on the left of the display suggests that you have pressed Hold. Deliberate to show me reading, or accidentally?

must of been an accident didn’t even know what that meant do you also mean unplugging the sensor connected to the airbox

Press the hold button again and it will go back to displaying live reading.

Start with MAF connected.

Show me a pic of 'sensor connected to airbox' please, so I can check what it is.

That’s the maf isn’t it?