Lowered T6 and swapped 17” for 20” then this…🙁

[UrbanHiker]

So I very recently had my T32 lowered and upgraded to larger alloys at the same time, itially the van drove superbly, handily was fantastic and obviously it looked so much better…then fast forward to less than 1 hour later, the first warning light appears on the dash, the amber electronic stabilisation control warning lamp had come on.
I kinda dismissed this as I suspected this was due to not having the wheels aligned and had only just left the garage where the suspension and wheel were fitted, arrived home and relaxed.
Next morning I start the van and get three separate “Error” messages appearing in the centre of the dash…
Error: stabilisation control (ESC)
Followed by…
Error: Front Assist
Then…
Error: Start-Stop
I also noticed when driving the van to work that hill assist was no longer working and I had to hold the van with the handbrake whenever stopping on an incline in traffic.
Straight to my friends garage after work to have the alignment carried out, adjustments made however the error messages remain and hill assist remains inoperable.
Pics and videos attached, would really appreciate any advice or suggestions as to what caused this and how it can be resolved.
Van looks great, and handles so much better now…but these error messages and lack of hill assist is concerning me. TIA

 

[dubber36]

Probably a broken or dislodged ABS sensor.

 

[doncarlyon]

What size tyres did you go for?

 

[UrbanHiker]

Probably a broken or dislodged ABS sensor.

The mechanic who did the alignment suggested similar, guy who fitted the suspension suspects the same and has asked me to pop along so he can check. Will keep you posted

 

[Lubrown]

Probably a broken or dislodged ABS sensor.

Was thinking a sensor of some kind and seems most likely after wheel and suspension work.
Either that or the wires to the radar unit (for front assist) got knocked?

Guess plugging into the OBD port with whatever the mechanic has might give more clues.

Hope it’s easily sorted

 

[UrbanHiker]

What size tyres did you go for?

265/40 R20’s TBH the difference between these and the original 215/60 R17 is absolutely staggering in both handling and looks.

 

[UrbanHiker]

Was thinking a sensor of some kind and seems most likely after wheel and suspension work.
Either that or the wires to the radar unit (for front assist) got knocked?

Guess plugging into the OBD port with whatever the mechanic has might give more clues.

Hope it’s easily sorted

Thanks for the advice and suggestions. Hopefully get to the root of the issue on Friday

 

[doncarlyon]

265/45 R20’s TBH the difference between these and the original 215/60 R17 is absolutely staggering in both handling and looks.

That's an unusual size, quite a bit bigger than the standard rolling radius.

I'd wondered if you had gone staggered sizes and there was a big enough difference front to rear to confuse matters.

 

[Fivetones]

I had a very similar set of errors and instead of the usual ABS sensor issues it ended up being a loose balljoint bolt from work I’d had done a couple of years back.

 

[UrbanHiker]

That's an unusual size, quite a bit bigger than the standard rolling radius.

I'd wondered if you had gone staggered sizes and there was a big enough difference front to rear to confuse matters.

Sorry, corrected my typo…meant 265/40’s
I did a fair bit of research online and 265/40 are highly recommended by THQ and others as one of the best size tyres on 20” rims and remain compliant with T32 load rating requirements. Not staggered setup, same size wheels and tyres on all four corners.
FYI I’ve found that 275/40’s are more ‘usual’ and commonplace (often found on Range Rovers, etc) however these are not recommended by THQ and others due to rubbing issues and too firm a ride after lowering.

 

[T6ARF]

I did a fair bit of research online and 265/45 were highly recommended by THQ and others as one of the best size tyres on 20” rims and remain compliant with T32 load rating requirements. Same size on all four corners.

Do you mean 265/40?

 

[UrbanHiker]

Do you mean 265/40?

Yes…typo corrected

 

[UrbanHiker]

So a wee update…started her first thing this morning, all 3 errors remain and stop/start, etc not work8mg and amber ESC warning lamp still showing.
Drove 60 odd miles, parked up for around 3 hours, returned to the van, started her up…all error messages including the ESC warning lamp have disappeared and start/stop now working as normal.
Not checked hill assist yet but it seems everything has just returned to normal without me having done anything, will keep a close eye on things but the issue seems to have disappeared without any further intervention.

 

[dubber36]

How old is your battery?