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I have 2008 Yukon XL Denali with assist steps. They stop

Customer Question
working. How can i troubleshoot...
i have 2008 Yukon XL Denali with assist steps. They stop working. How can i troubleshoot, or is there a common problem?
Submitted: 2 years ago.Category: GMC
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Answered in 46 minutes by:
9/22/2015
GMC Mechanic: Jerry, Master Mechanic replied 2 years ago
Jerry
Jerry, Master Mechanic
Category: GMC
Satisfied Customers: 17,221
Experience: ASE Master, 30+ years exp. former shop owner/ manager
Verified

Hello and welcome. My name is ***** ***** you for visiting the site, I will be happy to assist you today.

.

That could very well be in the control module, if the running boards have been initialized. Not that it's very common with them though.

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I can get the test instructions for it and put it in a PDF file, (it is rather large) and send it to your email address for as little as is allowed by the site.

.

You will just have to accept the additional service offer and ENTER your email address in the private section so that I can see it. I do not have access to your email address, Thanks

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GMC Mechanic: Jerry, Master Mechanic replied 2 years ago

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