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sprinkles08, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 22690
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Asb/esp inoperable, Cruise control not working. Scanner

Customer Question

asb/esp inoperable, Cruise control not working. Scanner code:right front wheel speed sensor. Changed, but continues to have lights on. The sometimes go off but return when car reaches 20-30 mph. 2011 GL450
JA: Does the sensor have a wire-wrapped magnet? If so, have you checked it with an ohmmeter?
Customer: no
JA: What is the model of your '11 Mercedes?
Customer: GL450 4 Matic
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Yes. New sensor cable,On scanner wheel speed matches left front
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 8 months ago.
Category: Mercedes
Expert:  Kevin replied 8 months ago.

Hi im kevin so on scanner speeds are the same even when light comes on ?

Customer: replied 8 months ago.
Expert:  Kevin replied 8 months ago.

No variation at all ? What code do you have and is it the same code as before sensor replacement ?

Customer: replied 8 months ago.
7.1 to 7.2 on other wheel. Code for right front wheel sensor
Expert:  Kevin replied 8 months ago.

I need the actual fault code there is about 15 different fault codes for right front each indicates the type of issue

Customer: replied 8 months ago.
I will get it
Expert:  Kevin replied 8 months ago.


Customer: replied 8 months ago.
Expert:  Kevin replied 8 months ago.

What are you scanning with

Customer: replied 8 months ago.
Icarsoft i980
Expert:  Kevin replied 8 months ago.

Ok these codes dont exsist on my system il opt out see if another tech can help

Expert:  sprinkles08 replied 8 months ago.

Hello and welcome to JustAnswer!

Depending on the actual code setting there could be a sensor, wiring, ABS module, tone wheel or tire circumference issue, but if the sensor signal is now present and seems to match the rest then I'm not sure that a code for the right front is still setting.

Do you have the actual C code numbers that are setting? They will start with a C and have at least four digits.

Customer: replied 8 months ago.
No I do not have a C code. The previous codes from the icarsoft i980 is all I have.
Expert:  sprinkles08 replied 8 months ago.

Can you double check to see what is actually setting? It may show proprietary codes but the standardized C codes should be there. It's required to report in that form.

Customer: replied 8 months ago.
Does the code p2004 or u140a00 help any?
Customer: replied 8 months ago.
Or p313731 or 124000
Expert:  sprinkles08 replied 8 months ago.

Nothing related there I'm afraid.

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