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Got a 2010 gl450. Initial codes showed right front speed…

Customer Question
Got a 2010 gl450...

Got a 2010 gl450. Initial codes showed right front speed sensor and left rear speed sensor. Replaced sensors codes cleared and now we get a c1410 code and light has yet to go off. totally lost a this point with what to do.

Mechanic's Assistant: Does the sensor have a wire-wrapped magnet? If so, have you checked it with an ohmmeter?

We've checked ohms on new sensors.

Mechanic's Assistant: What is the model of your '10 Mercedes?

Gl450

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

I am a local shop. parts have been replaced. checked both old and new sensors. old ones were bad new ones test good.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

That should do it.

Submitted: 3 months ago.Category: Mercedes
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Answered in 2 minutes by:
4/3/2018
Mercedes Mechanic: Lou P. master tech, Mercedes Technician replied 3 months ago
Lou P. master tech
Lou P. master tech, Mercedes Technician
Category: Mercedes
Satisfied Customers: 6,080
Experience: 20 years Master Certified excellent fix rate and have access to factory wiring, and instructions.
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Hello, my name is***** and i will do my best to assist you.I am going over your story now and will reply back soon with some info,thanks!

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Customer reply replied 3 months ago
standing by
Mercedes Mechanic: Lou P. master tech, Mercedes Technician replied 3 months ago

Gordon what module are you seeing this code in? our codes in this model dont show as having C prefixes

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Customer reply replied 3 months ago
Both Mac tool and snap on scanner showed this code but cleared the sensor codes.
Mercedes Mechanic: Lou P. master tech, Mercedes Technician replied 3 months ago

ok, what is the designation of the code? sometimes aftermarket scanners make up codes which can confuse things.

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Customer reply replied 3 months ago
All it said is c1410 road test active.
Mercedes Mechanic: Lou P. master tech, Mercedes Technician replied 3 months ago

perfect.

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Mercedes Mechanic: Lou P. master tech, Mercedes Technician replied 3 months ago

someone entered road test mode, this is easy to exit.

car must drive forward UNDER 5mph while steering left and then right to relearn the yaw rate sensor.

code should clear on its own. if not then use the scanner, go to activations and or adaptations and perform the road test selection again and do not turn the key off.

then drive as described. let me know if it goes off.

this is not a fault, you are stuck in a relearn mode.

yell at whatever tech did this lol

its a pain.

avoid in the future at all costs.

let me know,

Lou

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