Cause of the AirBag error

Right here. As practice has shown, it turned out that immediately after the airbag plug, the wire was broken off.

The yellow wire is broken. The solution that comes to mind: we build up the wires, all connections are only soldering and insulation. But during disassembly, it was revealed that it was in this place that someone had already visited and solved this problem by simply twisting and winding with electrical tape, I did not expect such a mediocre approach, because. all previous frauds with the car were done by the Skoda dealership.

Here you can see how the brown wiring was repaired. In general, I connected everything, insulated and wrapped it, stuck it in and check it - it works: the column sings, the motor began to pump fuel, the glass lifter works, the pillow remains on the tidy (because it is reset only with a cord). everything can be seen in the photo below:

Extended by soldering short wires to the ends of the plug.

Well, I isolated the whole thing with electrical tape. There were no heat shrink tubing in the store.

Next, we solder the ends to the wires coming from the door, isolate and wrap all the wires with rag tape for reliability, and check everything.

Then, after checking everything, we put the plugs with wires into the channels - it’s not so easy, because this must be done carefully.

We put everything in place. 

Source: https://www.drive2.ru/l/5390857/