The mysterious tri-fecta: DSC, ABS, Brake amber lights

[lay3r3]

Originally Posted by mstrmnd

Do recall what the part number is for the wheel speed sensors?

Sorry, I don't. I believe you can track it down on RealOEM though.

[jaima]

Originally Posted by Contigo

Aha this is helping me guys,

I had the dreaded three lights on mine after a dead battery and they have since gone after I got things running again but I am still plagued with the dead batteries despite the battery being diagnosed as healthy. I wonder if I've got an alternator same as bgnmi?

Your dead battery could be down to a faulty relay switch, my dead battery syndrome came from "nav audio relay" when I took out fuse #72 (in the boot/cargo area) which was drawing over 4 amps in sleep mode, the battery has been working fine since then, Yesterday I replaced fuse #72 and the nav audio relay (2nd hand relay given to me), time will tell if the relay is now working or not, battery will go flat again if relay is not working? need it working to get audio from radio, cd & satnav.

[Contigo]

The Nav system works fine as does the Radio etc... I also have the comms pack and the trafficmaster (uk feature) and lots have reported that this can drain the battery in no time. I'm getting really irate trying to diagnose this issue now.

[jaima]

Yes my nav system, multi cd and radio also work fine when the fuse is in place but the battery drains drastically (less than 24 hours), when I disconnect the fuse #72 the battery will last (remain charged) but no audio from radio etc,
Others have also reported their phone modules (fuse #74) draining their batteries and the fsu (Final Stage Unit for the AC)

[Contigo]

Yours must be a later model than mine as the Phone is 7,72 and 73 and you need to remove all three of those fuses to actually disconnect the phone. Unfirtunately this actually kills the CD, Nav, OBM, Phone and Audio unit so I have no entertainment if I want to eliminate just one of those devices!

[Brad-E53]

I had the famous warning light trifecta... Forums i had searched said it could most likely be one of two things: abs module or wheel speed sensor. since i lost my temp guage as well as rpm, i ruled out the wheel speed sensor. I had took out my abs module, very simple, and shipped it to cheap-abs, one of the abs places that came up on google, and for about $120 it cleared the codes and it has been driving/shifting like perfect. Hope this helps!