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I have alarm on my Merceds 2007 it says ABS Inoperative

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I have alarm on my Merceds 2007 it says ABS Inoperative
Submitted: 4 months ago.Category: Mercedes
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Answered in 4 hours by:
3/29/2018
Mercedes Mechanic: sprinkles08, ASE Certified Technician replied 4 months ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 24,228
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified

Hello and welcome to JustAnswer! I apologize for the extended wait time you experienced, I've only just come online now and would like to assist you with your question.

There are many possible causes for ABS being inoperative. The problem may be with the ABS module itself or a loss of power or ground to it. The module may also have seen a failure and has set fault codes. If it sees a failure in any monitored component then it will set fault codes and turn on the warning. There are literally dozens of possible causes, anything in the entire system, but the most common issue would be a bad wheel speed sensor.

The first step in diagnosing the problem will be to use a scan tool to see if the ABS module communicates, and if so to see what fault codes have set; and then testing can be done accordingly.

My goal is to give you the best experience possible! I hope I have earned a 5 star rating! Please remember to rate my service by selecting the 5 stars at the top of the screen before you leave today. If you need more assistance, please use the reply box and let me know.

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