How to fix Codes P0826-P0827??? - Chevy and GMC Duramax Diesel Forum
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Old 04-19-2011, 02:12 PM   eBay Motors  #1 (permalink)
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How to fix Codes P0826-P0827???

I was out the other day and stepped in to it a bit and got the old check engine light...These are the codes i got...P0826 Up and Down Shift Switch Circ.- P0827 Up and Down Shift Switch Circ Low..Were should i start to fix this prob.??
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Old 04-19-2011, 02:27 PM   eBay Motors  #2 (permalink)
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Not much on 826, but here's a link for 827 site:duramaxforum.com P0827 - Google Search
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Old 04-19-2011, 02:58 PM   eBay Motors  #3 (permalink)
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That is the up and down switch for your tap shifter in the steering column. Check ignotion 0 fuse.
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Old 04-19-2011, 05:23 PM   eBay Motors  #4 (permalink)
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If the fuse is OK, you probably have a broken wire at the switch.

The wires are very small, and like the others in the column, they do break at times.

The wires may be broke, even though the insulation looks OK. You will need to check the circuit with a meter.
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Old 08-04-2011, 07:36 PM   eBay Motors  #5 (permalink)
 
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hey sir i have right now that problem.... but what other issue this error afect the car? cuz when i ran over 45Mph its loke something is stoping the car doesnt run well when u quit the foot of the acelerator and also when u accelerate the rpm when stuck for a moment and then suddenly comes the forced shift
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Old 06-08-2013, 03:55 AM   eBay Motors  #6 (permalink)
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This was a great help thank you to all respondents. I found the orange wire that contained the four very thin wires, two black and two white. A black and white were already cut and the other two were soon to follow. The whole repair took less than an hour.

This site is fantastic.
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Old 07-25-2013, 03:07 PM   eBay Motors  #7 (permalink)
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hey paint guy can you tell me where to find these wires in the steering column. i have that P0826 code and think thats the issue.
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Old 07-25-2013, 03:34 PM   eBay Motors  #8 (permalink)
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Remove the lower steering column cover, look where the wires are held down at the column.
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Old 07-26-2013, 05:03 AM   eBay Motors  #9 (permalink)
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There is what looks like an orange wire that you won't miss on the shifter side of the steering column. The orange wire is a case with 4 very thin wires in it and on mine two were broken most of the way through. I soldered them back together and fixed the other two at the same time to stop them from breaking the following week and then heat shrieked the repairs. So far so good.
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Old 07-26-2013, 06:17 AM   eBay Motors  #10 (permalink)
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Ok thanks for the help guys! I will look at it tonight when I get off of work. If you had to guess what is the gauge of the little wires that might be cut? I love this forum, I was going nuts trying to figure that CEL light!
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all headlight mod, dual turn signal swap, 285/75/16 Cooper ATS 3 discovery powdered coated OEM wheels Plastic dipped pumpers, grill.
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