[SOLVED] P0729 Code: Fixing Automatic Transmission 6Th Gear Incorrect Ratio

Are you experiencing the frustration of your engine light being on and your transmission refusing to shift into 6th gear? Well, the fault code P0729 might be the culprit. This code is typically triggered by a low transmission fluid level, a shift solenoid mechanical fault, a hydraulic circuit fault, or even a transmission failure.

To fix this issue, start by visually inspecting the wiring harness and connectors for any damage. Look out for broken, bent, pushed out, or corroded connector pins. The repair time for this problem is estimated to be around 1.0, so it’s important to address it promptly.

Don’t worry, we’ll guide you through the process of interpreting the fault code and getting your vehicle back on track.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

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If you’re experiencing an illuminated Engine Light and your transmission won’t shift into 6th gear, you might be dealing with the p0729 fault code.

  • The symptoms of the automobile fault code p0729 include the Engine Light ON (or Service Engine Soon Warning Light) and the transmission not shifting into 6th gear.

The fault code p0729 can be caused by a low transmission fluid level, shift solenoid mechanical fault, hydraulic circuit fault, or transmission failure.

  • The fault code P0729 can be caused by: low transmission fluid level, shift solenoid mechanical fault, hydraulic circuit fault, and transmission failure.

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To fix the p0729 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0729, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.
  • This fix should take approximately 1.0 hour.

The factors influencing the diagnosis and fixing cost of the automobile fault code p0729 are the estimated repair time of 1.0 hour and the average hourly rate charged by auto repair shops, which ranges between $75 and $150.

The P0729 fault code is detected when the automatic transmission (AT) fails to shift into the 6th gear position as directed by the Transmission Control Module (TCM). This issue can be caused by both electrical malfunctions, such as open or shorted circuits, as well as mechanical malfunctions like a sticking control valve or improper operation of the solenoid valve. In simpler terms, it means that there is a problem with the transmission not shifting into the correct gear, specifically the 6th gear.

What are the possible causes of fault code P0729 in an automobile?

If you’re experiencing the fault code P0729 in your automobile, you may notice that the engine light is on or the service engine soon warning light is illuminated. Additionally, your transmission may not shift into 6th gear. This issue can be caused by a few different factors, including a low transmission fluid level, a shift solenoid mechanical fault, a hydraulic circuit fault, or even a transmission failure. To fix this problem, it’s important to check the possible causes mentioned above. Take a close look at the wiring harness and connectors, inspect for any damage or broken components, and check for any bent, pushed out, or corroded connector pins.

What are the symptoms of fault code P0729 in an automobile?

If you see the engine light on or the service engine soon warning light in your automobile, along with the transmission not shifting into 6th gear, you might be dealing with fault code P0729. This code can be caused by a low transmission fluid level, a shift solenoid mechanical fault, a hydraulic circuit fault, or even a transmission failure. To fix this issue, start by checking the possible causes mentioned above. Take a close look at the wiring harness and connectors, inspect for any damage or broken components, and check for any bent, pushed out, or corroded connector pins.

How can I fix fault code P0729 in my automobile?

To fix fault code P0729 in your automobile, start by checking the possible causes such as low transmission fluid level, shift solenoid mechanical fault, hydraulic circuit fault, or transmission failure. Next, visually inspect the wiring harness and connectors for any damage or broken, bent, pushed out, or corroded pins. This will help identify and resolve the issue causing the engine light to be on and the transmission not shifting into 6th gear.

p0729 error fault code explained

If your engine light is on and your transmission won’t shift into 6th gear, it could be due to a low transmission fluid level, a shift solenoid mechanical fault, a hydraulic circuit fault, or even a transmission failure.

To fix it, check the possible causes mentioned above, visually inspect the wiring harness and connectors, and look for any damaged components or corroded pins.

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