Code P0712, do I just change the fluid and filter or replace the transmission?

2006 PONTIAC GRAND PRIX
201,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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RONALD DEVOLD
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I have a P0712 transmission Code along with P0300 misfire code. I need help with the P0712 code. My question is, do I just change the fluid and filter or replace the transmission?
Also, the code refers to a transmission temperature sensor on which I don't know where its located.
May 27, 2023 at 3:13 PM
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JACOBANDNICKOLAS
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Hi,

I don't feel the transmission needs to be replaced. Also, the fluid itself isn't the cause. You likely have a short in the wiring harness to the transmission.

I attached diagnostics below for you. Take a look through them and let me know if you are comfortable performing them.

Let me know.

Take care,

Joe

See pics below.
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May 29, 2023 at 7:41 PM
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RONALD DEVOLD
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Thanks. I cleared the code, and I changed the fluid and filter. It's been a few days since and the code did not come back, but a slight drag when shifting.
May 31, 2023 at 3:51 AM
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JACOBANDNICKOLAS
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Hi,

Thanks for the update. If things change, let me know. Also, feel free to come back at any time in the future.

Take care,

Joe
May 31, 2023 at 9:21 PM