Originally Posted by
tighed1
The traction control relay can affect the speedometer and BAS/ESP.
The relay with the burnt contacts is the air pump relay. Common problem.
Both can be fixed with relay replacement. That's what I do.
Email tighed1@hotmail.com if you would like to get your RCM refurbished.
For the life of me, I can not figure out why anyone would want to bypass the RCM when such an easy, quick, inexpensive, refurbished RCM is available from tighed1. He does great work for just the cost of repair and it is fast turn around time. Please do not get side tracked with this bypass solution when you can get the job done right by another forum member.
Thank You tighed1 for helping so many!