Question about Cars & Trucks
The hydraulic ABS pump stays on . Warning lights ESP BAS and the orange abs light on all the time . Changed the relay , changed the pump ,changed angle steering sensor changed the brake switch , checked speed sensors fine . No resolve . code C1401 High Pressure Return Pump Circuit Open/Shorted; Will Not Shut Off . Please advise many thanks
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Posted on Jan 02, 2017
SOURCE: Warning Light on Mercedes ML270
To my understanding:
BAS ESP - Electronic Stability Program (keeps you moving in the direction you intended the vehicle to go); probably a faulty brake switch or a bad brake sensor. You may want to reference this forum for additional insights;
ETS - Electronic Traction System (keeps you moving); would require an appropriate code reader to diagnose and pinpoint problem.Surprisingly, there has been some reports of defective brake pedal switch that activates this warning. You may lilkewise want to reference this forum for additional insights.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
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Posted on Jun 06, 2008
BAS is the Brake Assist System and if there is a malfunction it would only come into play in an Emergency stop while applying full pressure. BAS applies full braking force because people tend to lighten up their pressure on the pedal in these situations. I would suggest that the best thing to do is go to a Workshop or Service Center and have it checked out. Please remember to put a good rating on my profile.
Posted on Jun 26, 2008
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