Ford Transit MK8 2020 Issue with ABS, Traction Control

[BTec_DomHoward]

Ford Transit MK8 2020 Issue with ABS, Traction Control, Parking Sensors, Rev Matching, Cruise Control

I have been having an intermittent issue with my 2020 MK8 Ford Transit that has now become permanent as of the past few days.

For the past month or so every few times I drove I would have a fault involving the following symptoms:

- ABS Warning Light on dash

- Traction Control Warning Light on dash

- Parking Sensors unavailable

- Change in feel of moving off from a stop with the revs/bite point

- Cruise Control and Speed Limiter not able to be used

The issue was intermittent for a month or so and would sometimes not come up for days in a row or sometimes come on when I start the vehicle and go away after a few mins. The fault has now been present for the past 5 days and hasn't gone away at all so I am now more keen to diagnose the issue.

The van doesn't feel any different to drive (apart from moving off) so I don't think it's anything mechanical at fault.

All the symptoms lead to a speed sensor issue with one of the wheels which would explain the the cruise control unavailable, rev matching of the van not working, and traction control not working.

I've inspected all the wiring running to the ABS sensors and it all looks ok. I've also checked for any blown fuses of which there are none.

I've connected ForScan and run some basic diagnostics from my limited knowledge of the software. All ABS sensors are consistently reporting the correct speed of the wheels when driving. I've attached photos of the errors currently on the van, not all of which are related to this issue.

Anyone who has experienced these faults before or have any suggestions I'd be grateful to hear from you.

[metalworker0]

Change in feel of moving off from a stop with the revs/bite point

I not quite sure how hill start assist works ..but believe it holds the brakes on whilst you rev and then releases ..would explain the way the throttle is performing, if this hill start assist (if it has it ) is malfunctioning ..or permanently switched on. or the calipers sticking. rears more likely.

Then hill start assist or traction control will not function correctly, if any of the other ABS gubbins is not working properly.

Lots of systems perform together with info from the ABS system, so anything that depends on this chucks up an ABS fault.

of course if you have these systems turned on - hill start / traction control on when you don't need them ..they will fail earlier than they were designed to - as they are sort of emergency devices only.

i trust you've done a brake flush and brake service .

There is a list here with all faults for fords

https://www.dtcdecode.com/Ford

You press on the numbers and page comes up with whole description may give extra information for you .

all the best.mark

[andz327]

Try resetting steering position sensor
Have you had steering tracking or any work done to steering??

Sent from my SM-G990B using Tapatalk

[dumper]

When my mk8 did this it was a cracked reluctor ring spinning on the rear hub .

[BTec_DomHoward]

No work done to the steering since I've had the van which is about 15 months

[knobby1]

No work done to the steering since I've had the van which is about 15 months

Have you checked all the ABS reluctor rings and sensors for obvious damage..??

Lord Knobrot