Re: BAS ESP/ ABS/ E Brake/ Brake wear indicator light all on
Easy to check if it's the RCM.
Remove the RCM.
Remove the cover (video on YouTube shows how, How to open RCM Crossfire.)
Reinstall RCM and position it so you can see the relays.
Start car.
Check that the 3 inner relays are engaged.
If not, you haz a problem!
Email me tighed1@hotmail for repair info. :-)