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Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

2014 promaster

  • Cheryl
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3 years 2 months ago #57438 by Cheryl
2014 promaster 3.6 no crank was created by Cheryl
I’m getting a u0426:31 does the flowchart for the code seem to easy? It says if the code is active check if it’s in any other module including bcm replace bcm. But can not find anything on another code p1c4f.

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3 years 2 months ago #57461 by Cheryl
Replied by Cheryl on topic 2014 promaster 3.6 no crank
Anyone have information on the u0426:31?

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3 years 2 months ago #57479 by Noah
Replied by Noah on topic 2014 promaster 3.6 no crank
All i see is basically what you described
"Ground cannot be checked with a 10mm socket"

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3 years 2 months ago #57480 by Cheryl
Replied by Cheryl on topic 2014 promaster 3.6 no crank
What about the p1c4f?

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3 years 2 months ago #57482 by Noah
Replied by Noah on topic 2014 promaster 3.6 no crank
literally nothing on Shop Key (Mitchell) or All Data. Sorry
"Ground cannot be checked with a 10mm socket"

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3 years 2 months ago #57485 by Cheryl
Replied by Cheryl on topic 2014 promaster 3.6 no crank
I have the shifter in order. Checked powers grounds and data lines to it. All good. I think that’s why the key won’t come out of the ignition or crank. It isn’t showing the gear indicator on the cluster

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3 years 2 months ago - 3 years 2 months ago #57609 by Cheryl
Replied by Cheryl on topic 2014 promaster 3.6 no crank
Ended up looking online some more on the u0426-31 code and found something interesting. Found the fuse box wiring shorted together enough to dimly light a test light.
Attachments:
Last edit: 3 years 2 months ago by Cheryl.
The following user(s) said Thank You: Monde

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3 years 2 months ago #57610 by Noah
Replied by Noah on topic Thinkcar Platinum S10 Can Fd
Awesome, nice find!
"Ground cannot be checked with a 10mm socket"

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3 years 2 months ago #57612 by Cheryl
Replied by Cheryl on topic 2014 promaster
Not sure how the subject got changed never changed it. But hopefully this thing will finally be fixed

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3 years 2 months ago #57638 by Cheryl
Replied by Cheryl on topic 2014 promaster
Fuse box fixed starting issue and all other issues. But trans has a cracked housing so it’s pouring fluid everywhere. Owner never said anything about it. Just it had a slight leak never could tell never ran until yesterday

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3 years 1 month ago #57840 by superdoctor
Replied by superdoctor on topic 2014 promaster
hello sir
nice to hear that you solved this problem, i have same car and same problem same dtc fault codes, which fuse box did you changed? the fuse box on the front under the hood? or the fuse box inside the car under the steering wheel?

thank you very much

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3 years 1 month ago #57842 by Cheryl
Replied by Cheryl on topic 2014 promaster
You mean mam…

But anyway are you getting the u0426:31? Shifter not lighting up the gear indicator? Key stuck? I replaced a few things but the under hood fuse block was melted.

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3 years 1 month ago #57843 by superdoctor
Replied by superdoctor on topic 2014 promaster
yes the key is stuck and no coming out, the dtc U0426 is present also the P1C4F is present. what do you think ? fuse box?

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3 years 1 month ago #57844 by Cheryl
Replied by Cheryl on topic 2014 promaster
I’d flip it over and look see if you have any melting in the underhood fuse block. You know how to use test light?

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