Breezy_Pete

I'll try this on my own car - tomorrow or Saturday - before suggesting anyone else does; but testing the motor appears to be as easy as unplugging the connector from this socket of the onboard supply unit, and connecting pin 3 to pin 4 on the loom connector with a (thickish) link wire for slow/normal speed wiper action, and pin 3 to pin 5 for high speed. If you do decide to try this please note: pulling that connector does deprive the control unit of its main earth, so do it with engine off, keys out of ignition to minimise 'system confusion'. This unit lives above the accelerator pedal on RHD cars, above clutch pedal on LHD.

Check motor operation by connecting 12V directly to the appropriate pins. May be easier to do this from the cabin end of things, rather than in the scuttle area, will look at pin numbers/connectors later for you. If that works on both speeds it may be the relay on the PCB of the onboard supply control unit: https://www.briskoda.net/forums/topic/473170-wiper-relay-replacement/

Measure battery voltage before and after starting engine.

Possibly some wiring damage due to flailing belt as it broke?

1K0698451D superseded to the suffix -G part number in late 2007 according to oemwolf, a handy site for looking up such things. So should be OK. https://oemwolf.com/oem-parts/1k0698451d.html#replacements

A great starting point is to figure out the part number of the original springs. This can be done by looking at the coloured paint mark sequence on them, then referring to sites like 7-zap,com which 'parallel' ETKA. Can't do much without those colour mark sequences in my experience. By the way your typo conjured up a great mental picture for me, setting me up for the day with some comedy - "otters online".

No j393 central convenience module fitted after April 2011 to your car as far as I can see, so the locking is controlled by the combination of lock units, centre console switch unit (got a photo?), door control units under the switch panels on the doors (these are what the front lock units themselves connect directly and only to) and BCM, I think. I don't understand the system, but do have circuits which may be useful. The two front door control units are connected by CAN to the network. For models with rear electric windows, the door control modules are connected by LIN to the front ones on the same side. You can obtain these diagrams yourself for a relatively small fee (under £10 here) if erWin Skoda works from down under. I believe you can also get wiring diagrams specific to your VIN, but only to view or print rather than download. May still be the way to go for your situation, to simplify things as much as possible I'll have another look around the appropriate general wiring diagrams today, and see if any testing/diagnostic ideas 'leap off the page'. How many electric windows on your car?

What year is the car Rob? For cars made before May 2011, J393 central convenience unit is behind or under the glove box as far as I can tell from wiring diagram. As far as I can see, all the lock units contain are microswitches, motors and resistors, so I don't think there can be a 'master'?

Check strip fuse no. 3 in the battery fusebox.

I think that's a bit hasty and relatively unlikely to be honest. I would proceed to try to eliminate each wiring leg until you run out of candidates. Take off battery negative first to be safe from upsetting anything, then unplug washer motor, retest at rear wiper motor for shorts to earth from either white wire. If still present, unplug one of the black or white 52 way connectors from the BCM, etc.

Usually 100mm or so above the bottom coolant hose connection to the radiator. Access may be easier from below, not sure what's in the way of access from above on your engine/car.

For the calipers? 1K0 615 423M left 1K0 615 424M right. The part numbers ending C were superseded by the ones ending H, which were again superseded by the ones above, on 23/01/2008.

Check for broken wires at the radiator thermoswitch.

I thought you'd already left in a huff?

^ Good observation.

I think it's one motor that runs in opposite directions to send water to front or rear. One (water) input, two outputs. Can't visualise the internal details TBH! Unplugging either the white 52 way, the black one, or both while checking for shorts at the rear wiper should tell you whether the fault is on one or other of the wiring runs, or the BCM itself (I think, but it 's a bit late for thought).

Actually it's both, the pin 3 wire becomes green/white at pin 3 of the five-way connector on its way to pin 43 of the black 52-way connector at the BCM. En route it tees off to the other side of the washer motor to the aforementioned wire.

OK, so judging by your photo the short is between the brown earth wire and the white wire nearest to it? That white wire becomes a green/red one at pin 2 of the five-way connector you've found. From there it heads forward to the BCM, pin 2 of the white 52-way connector. At some point before getting there, it also tees off to the washer pump motor, so there's the possibility of a short in that leg of the wiring too. Do the windscreen washers work, front and rear? BCM is located 'below the right dash panel' on RHD cars. A Yeti owner is likely to be able to help with access/location much more than that, I trust!

Some people have problems with their cars, others have problems that are even more difficult to solve.

Catch you after my spag bol.

It was simply frustration, I think. The OP has bought a car that's turned out to have faults that are proving difficult and expensive to fix. Very, very few of the people trying to help others on here are professional mechanics, so it shouldn't be surprising that not all of the suggestions are 'expert'. No-one here is getting paid anything for trying to help, so it seems unfair to criticise their attempts, @lalwong. I agree that the forum would be a much better problem solving resource if every question asked had a proven, documented solution, but unfortunately, once a problem is solved, most people simply get on with their lives rather than going back to write the solution for the benefit of others. Every forum is the same, and it's impossible to force people to 'complete' their threads. Many more serious problems may actually never be solved too, the car being sold or scrapped instead.

Ask the person that did it? They may not be able to tell you fine details but should at least be able to give you some sort of reference number or version number of the update, I expect?

I think the J519/ module 09 unit is called Onboard supply control Unit sometimes, which could be abbreviated to power supply unit or PSU The update may well have included software modification to specifically not allow that alarm horn confirmation of locking etc. I seem to remember reading about some EU ruling that made it illegal, for noise nuisance reasons. It would be a bit tragic for you if that was all that the update was for.

On that link I gave you before, about halfway down the page of diagrams there are two for rear brake hose set-ups depending on whether 4x4 or not. Pick the right page out of those two, find part number for relevant hose. Hint: if you can't see part numbers try viewing on a computer rather than phone, phones seem to sometimes not display all the columns in the tables.