Intermittent Problem with ESC, Hill Descent

Dear all. Just looking for some guidance/direction please on a new problem we are experiencing with our 2022 Broadway EL

We are just back from a 1500 mile round trip to France during which our ESC (traction control),Hill Descent Control and Cruise Control warning lights came on intermittently. I.e. the warning lights come on but once we have stopped and restarted the following day all seems okay again.........until 2-300 miles later when the warning lights come back on. I guess this might be an ECU problem but as I am not technically minded I'm not sure. The van still has Fiat warranty so presumably its a problem that would be fixed in their camp and not Autosleepers.....if it needs to go external to fix it

Any thoughts welcome as it may be a simple fix but maybe not. 

Thanks

Alastair0811 wrote:...The van still has Fiat warranty so presumably its a problem that would be fixed in their camp and not Autosleepers.....if it needs to go external to fix it

Any thoughts welcome as it may be a simple fix but maybe not. 

Thanks

Yes - definitely a Fiat problem that I would report to them before the warranty expires.

The most likely cause is a wheel speed sensor problem. Once detected the lights will come on but resetting the ignition initiates a self check and if all passes then no lights on.
There are other systems linked that can also cause this I.e. the steering angle sensor as this lets the ABS know which wheel speed should be higher when cornering etc.
The faults should be in the ECU memory so once scanned, the cause should be clear. 
The cheaper OBD scanners you can buy are unfortunately unlikely to be able to read the data so it you do look for one, check the specs that ABS scanning is possible.

Thanks Fixer. That's really interesting and useful. Thankyiu. Ironically I did notice that the steering wheel is no longer centred when driving straight. Could this be connected to the problem? I'll do some research into the specs and also if appropriate research an old scanner that might do the job...assuming of course ABS scanning is possible. Thanks again

Alastair0811 wrote:Thanks Fixer. That's really interesting and useful. Thankyiu. Ironically I did notice that the steering wheel is no longer centred when driving straight. Could this be connected to the problem? I'll do some research into the specs and also if appropriate research an old scanner that might do the job...assuming of course ABS scanning is possible. Thanks again

Steering out of straight can well be the cause but as it isn’t a permanent fault then it is difficult to be sure. A system scan is the only way to see what happened at the time.

Alastair0811 wrote:I did notice that the steering wheel is no longer centred when driving straight. Could this be connected to the problem?

How did this come to be? Was some work done on the van just before you noticed? You really should get that looked at - whether it is the cause of the warning light problem of not.

No work done on the van beforehand and we don't notice until our latest trip.. It's booked into a Fiat dealer to assess and resolve. Thanks for your input