Dec 22, 2025
1
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Hi all,

I've got a 2025 Ibiza I've just bought (cat s repaired), done a couple hundred miles in it no problem at all.

Left home the other day and after about 5 minutes the dashboard lit up with all the warning lights it could and got fault messages for practically every sensor in the car. Tyre pressure, parking sensors, auto lights, front assist, ecs etc. Almost like the ECU lost connection with everything.
Also found that the engine was almost "pulsing" when idle, though I'm assuming that's just a symptom of it losing all the sensors.

I've let the car sit overnight but it throws up all the errors again as soon as I turn the ignition on.

Anyone have any initial ideas I can try before I go ahead and buy an OBDEleven to read the fault codes?