ABS, Traction and TPS Warning Lights

[Afrokid]

All of these have come on in our 2017 Aygo. The tyre pressure flashes for a while and then stays on with the other lights. It sounds like it might be a sensor from other threads but I can't find definitive answer/ solution. Any help much appreciated.

[DJ123]

Sounds like it is a wheel speed sensor as this works in all 3 systems you've detailed. A quick plug into a diagnostics machine will say which one is at fault. 

[Pangit]

I had the same problem when the drive shafts had been out for a clutch change, but although the 3 lights were on, there was no fault code (which seemed to indicate that the wheel hub sensors were OK). After much checking of wiring, sensors, Battery condition, earthing points, any connections removed and replaced during clutch change, etc. I found the problem by removing the drive shafts again. I found that during reassembly of the wheel hubs/driveshafts, one of the magnetic sensor rings on the wheel bearing had been damaged....there was only a third of it left !!! Changed the bearing, and problem was solved immediately.

[johnny_c-l]

I have this problem too and dropped the Aygo into Toyota today.

It's a faulty oxygen sensor but is covered under the 10yr/100k warranty. I'd researched online before taking it in, and this appears to be common and throws up the three warning lights you've got.