abs and tracs light on

[dannyboy101]

As above. Both came on today randomly. No loss of braking. No codes tho, which I find wierd. Any ideas please guys?

[Wobbly Dave]

Dry joints in the ABS ECU - common failure ( & yes I still fix them) or cracked/broken reluctor rings (the castelated rings that sit on the CV joints on the drive shafts).

Read the codes - If the DTC show more than 1 wheel at fault then it is most likely your ABS ECU that will need repairing.

http://www.vpcuk.org/forums/showthread.php?t=224

[dannyboy101]

My code reader hasn't shown me any codes, any ideas why?

[dannyboy101]

Quick update, still no codes, either pending or live. But after leaving the car all day at work, drove home, no lights on at all. Is there a most likely cause, i want to get this fixed as i want my brakes to work!

[Wobbly Dave]

The ABS ECU is most likely - as the dry joints will present as an intermittant fault initially. As the heat rises in the bay resistance in the joints will also rise.

Having refurbished over 300 units it is easy to see how this can occur, particularly as the main fault lies with the power plug points.

Brake operation will not cease - just your ABS will be offline when the light is on. It is an MOT fail but only if the light is on when the brakes are tested.

[Tomcat]

Mines intermitant too Dave, Marc said he got the ABS ECU done a while back, it's got silicon sealant around the edge, does this sound like one of your repairs Dave?.. Just wondering if it actualy got done or if it's something else I need to do.

[dannyboy101]

Dave pm'd about the ecu repair.

[JamesT5]

I've got exactly the same problem!

[Wobbly Dave]

Mines intermitant too Dave, Marc said he got the ABS ECU done a while back, it's got silicon sealant around the edge, does this sound like one of your repairs Dave?.. Just wondering if it actualy got done or if it's something else I need to do.

Official ones will have WD melted into the lid along with the year & month of repair. There may well be other issues - such as the reluctor rings, something that happened to me a few years back on Betsy.

[BIG DAN]

i had this on my xc and all it was a split cv boot threw grease all over the rings cleaned with new boot job sorted :)

[Tomcat]

Cheers Dave, I've not removed it yet as I'll double check first and get the codes read.

[dannyboy101]

It hasnt stopped raining since this happened! But also hasnt come back on again. Fingers crossed it will stop raining so i can see what ecu i have.