Help...W140 ABS ESP/BAS lights stay lit!

[SL300-24]

I have a problem with my S600 W140 that I require some info on. I have not driven the car for about 2 months and it has been connected to an optimate battery charger/conditioner.

When parked up it was fine, however when started and driven on Saturday the ABS and ESP/BAS lights in the dash, stay lit up.

Is there a fuse for these or a relay/control box? It still drives fine, but I need to get the lights extinguished, could it be the brake light switch?
Or do I need a trip to my local indy? Thanks for any help

 

[SL300-24]

anyone?

 

[BlackC55]

Check the fuse in the OVP.

 

[SL300-24]

Solved.....spoke to MBTECHNICIAN and was told that low battery voltage car cause this to happen.
Reset the steering by turning it a couple of time from lock to lock as told, and now no more lights....thanks

 

[SL300-24]

Spoke too soon, came home tonight, started the car and the lights are back on