6gear problem P0729

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Sep 8, 2023 | 10:10 PM

Lilreed329

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8th Gear

Joined: Sep 2023

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From: New Orleans

6gear problem P0729

Hey guys, I have a 2014 C7 manual and I’m getting P0729 code what is the fix?

Sep 8, 2023 | 10:12 PM

kkupec02

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From: Bristol, Connecticut

welcome. someone here should know

Sep 8, 2023 | 10:22 PM

Vetteman Jack

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Moved to C7 Tech for assistance.

Sep 9, 2023 | 02:52 AM

Bill Dearborn

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From: Charlotte, NC (formerly Endicott, NY)

Here is the FSM diagnostic procedure for this code and several others: You may need a more powerful scanner if all you have is an OBD2 scanner.

Bill

Sep 9, 2023 | 09:21 AM

Lilreed329

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8th Gear

Joined: Sep 2023

Posts: 8

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From: New Orleans

Thanks for the helpful information Bill. I will forward this to my transmission shop. Chevy was trying to get me to replace the clutch with only 27465 on the car. I’m the only owner

Sep 9, 2023 | 02:06 PM

C5 Diag

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From: Cape Coral, Florida

Quote:

Originally Posted by Lilreed329

Thanks for the helpful information Bill. I will forward this to my transmission shop. Chevy was trying to get me to replace the clutch with only 27465 on the car. I’m the only owner

The Dealer was trying to get you to replace the clutch with this trouble code ???...this is either a wiring issue, bad ECM (doubtful) or bad gear sensor...hopefully your trans shop is good at electrical diagnostics because this can turn out to be a BIG bill if incorrectly diagnosed...if a bad gear sensor I'm not sure if they will be able to drop the trans far enough to get to the sensor because of where it resides...if not it's gotta be removed...also if you read the circuit testing checking powers and grounds using an ohm meter is NOT the correct way to check powers and especially grounds...don't know why these genius Engineers at GM want it done this way.

Last edited by C5 Diag; Sep 9, 2023 at 02:17 PM.