How to fix a code P0977?

2012 HONDA CIVIC
100,000 MILES
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CHICKENRACER2020
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The "D" indicator light keeps flashing so I had it scanned and received two different codes from two different places (auto parts store and a mechanic). P0977 came from the auto parts store after the mechanic scanned and got a different code at first and then received that code with a different scanner. My question is, where is problem and is there a diagram or video I can follow to fix it?

Car listed above is a DX model.
Oct 1, 2021 at 10:25 AM
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SQM
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Hello,

The code - P0977: Shift Solenoid Valve B (Open)

This can be triggered due to a faulty shift solenoid in the transmission. It can also be an issue with not getting proper signal from the PCM.

I have attached the troubleshooting steps for the code P0977 below. Try following those steps to figure out the issue.

https://www.2carpros.com/articles/how-to-use-a-voltmeter
https://www.2carpros.com/articles/how-to-check-wiring

Please let me know of any questions.
Thank you.
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Oct 1, 2021 at 11:21 AM
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CHICKENRACER2020
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Regarding the last slide, is there a way you can send me the link on changing the solenoid?
Oct 1, 2021 at 12:03 PM
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SQM
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I have attached the shift solenoid replacement procedure below.
Let me know of any questions.
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Oct 1, 2021 at 12:36 PM
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CHICKENRACER2020
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Awesome thank you. I am having trouble with solenoid B. This has helped a lot. Thank you
Oct 4, 2021 at 10:37 AM
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SQM
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You are welcome. Let me know if you need further assistance.
Oct 4, 2021 at 12:10 PM