ayc issues

[galant360]

hi guys having a bit of bother with my ayc lights.

When started up the ayc lights up and goes out. when you move all lights come on. oncu hit 40mph one bar drops off then 45 two are out and then 50 ts are out. once s down to 50 again one light comes on 45 second comes on 40 all three are on Any one got any ideas

[elnevio]

Are the tyres different sizes? Are the pressures identical?

Pull the fault codes. I wouldn't be surprised if there is a wheel sensor issue.

[galant360]

tyres are the same size. Ill check the pressure in them. it was poring down with rain with a run up the motorway then wet to start it 10 mins later andit was on

[Subaru ETA]

Agree with Nev. probably low tyre pressure.

[elnevio]

But I wouldn't have thought low pressure on its own would be enough to get all three green bars up? I had a slow puncture a little while back, ended up with 36 PSI on one side, and about 12 on the other. Was only giving me an occasional green bar in a straight line. That's why I'm wondering about it being a sensor, hence suggesting pulling the fault codes. However, it is a no-brainer to check the free & easy stuff first!

[galant360]

Cheers guys I'll get on to it the mora

[Subaru ETA]

Mine would light up at least 2 bars if I had about 5- 10psi difference