vauxhall insignia 1.8 - insignia code 24 - Jordan Dawson

hi all, so today i popped out to the car to blow the tyres up. started the car and it said code 24 on the dash. unfortunately I've misplaced my owners manual. a quick google search said that this could either be a speed sensor or a number plate light. both seem to be working fine. There's no unwanted noises from the engine. having turned the car off and on again the error code has gone. I've plugged the car into a obd scanner, that also says no errors? anyone know why i may have gotten a code 24? or any popular things i can check? thanks all!

vauxhall insignia 1.8 - insignia code 24 - Grace byatt

I literally have all this

. Code 24, engine light on and off.. got diagnostic test they said radiators then next day code 24 come on. Seen same as you speed signal sensor or number palte lifht, but car running fine. Now I see this was 2019 so assume you know the diagnosis and would like yiu to help measure youre probably the only person experiencing the same and that long ago you should have had a diagnosis.. many thanks if yiu could help me x