S40 (New) General : Anti skid service required

[scubasteve]

Had "brake failure stop safely" appear on the way to work this morning. Went from doing 80mph in the outside lane of the M5 to the ridiculous 'limp mode' instantly and had to swing across two lanes of traffic with no power to the hard-shoulder. The car effectively takes control away from you and forces you to stop whatever the situation which is dangerous IMO.

Anyway, the car wouldn't start for 5 minutes on the hard-shoulder with the red triangle displayed. A few cycles of turning off ignition and attempting to start the car finally cleared codes and started with no faults. Drove on from the hard-shoulder for another 5 minutes and got to work with another 'limp mode' event on the way.

The car is now parked at work and am going to get a taxi back tonight with laptop and diagnostics gear to read the codes. Car is a Volvo v50 56 model which is sounds like it is covered by the technical bulletin. Based on the comments here I am anticipating the 0130 BCM code and a big repair bill with no help from Volvo.

Has anybody had good experiences with third party repairers like ecutesting.com?

Any help appreciated.
James

[scubasteve]

OK so I'm hooked up to VIDA and am getting and endless stream of all sorts of fault codes

DIM-0001 mileage manipulated
EPS-0080 steering angle sensor faulty signal
EPS-E000 can communication faulty
...
the list is endless

The battery voltage without ignition is 12.48v
When running the voltage hovers around 14.7v

Any ideas?

[scubasteve]

So I've been clearing codes and re-reading and the following show every-time:

ECM-C073 ECU communication error signal missing
ECM-C100 ECU communication error signal missing
ECM-060D Accelerator pedal sensor faulty signal
ECM-1934 Vehicle speed signal (VSS) signal missing
ECM-1935 Stop (brake) lamp switch faulty signal
ECM-C104 ECU communication error signal missing
ECM-C121 Communication Brake Control Module (BCM) signal missing
ECM-C140 Communication Central Electronic module (CEM) signal missing

[scubasteve]

OK there is a strange buzzing sound coming from somewhere by the accessory belt so assume it is the alternator.

Voltage dropped below 12v and will not start.

I guess replacing this would be the next step

[scubasteve]

Well I towed it home tonight and everything has been fine.

Removed the CEM, scraped the oxidation off all connectors, cleared the codes in VIDA and now everything seems fine.

[SonyVaio]

Scubasteve,

What you have been experiencing is classic symptoms of the CEM.

Once you start getting multiple error messages over multiple systems then this points to a problem of sorts with the CEM. It can often happen when a garage or owner does servicing and doesn't plug the connectors back in properly and lock into place and of course if you have dirty and oxidised connections then this will cause similar issues.

I would however try and trace the reason why you have oxidised connectors in the first place. You have had some sort of water ingress.

[Holes]

C30, 2007 2.0 Diesel, 98k. Anti-skid Service Required came up 4 weeks ago. My local independent garage who services my car said the DTC's indicated the ABS Pump Module needed replacing for £650. To save myself some money, can anyone give me advice on where it is in the engine bay and how best to remove it? I plan to send it to ECU Testing.com for a refurb. Thank you.

[Gwendoline]

This message has just come up on my volvo v50 this evening 08 plate and 55,000 miles can someone give me any advise the car has been serviced regular but not always by volvo thank you .

[woody6046]

This happened to me on my 2012 S40 , anti skid and abs lights showing , Snows volvo sorted it FOA when i had my yearly service done , im told it can cost in excess of £1000 .

[cranem]

So I had my car in for a service.. Went to collect it today and this anti skid message was on the car when I started it.

They took it back into the workshop cleared the codes.. All fine.. Drop it out the workshop on the forecourt and back it came so they'll be looking at it tomorrow.. Surely if it's in their care when this happens volvo would have to cover it? Baring in mind that it was fine when it went in?