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P0729 Mazda Code - Automatic Transmission 6th Gear Incorrect Ratio

- Code Popularity: 5,117 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By AutoCodes.com - Updated Jul 29, 2022
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|Code P0729 Mazda Possible Causes

  • Low transmission fluid level
  • Shift solenoid mechanical fault
  • Hydraulic circuit fault
  • Transmission failure

|How do I Fix the Code P0729 Mazda?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Mazda have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code P0729 Mazda?

Labor: 1.0

The cost of diagnosing the P0729 Mazda code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code P0729 Mazda Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Transmission will not shift into 6th gear

|Code P0729 Mazda Description

This malfunction is detected when the A/T does not shift into 6GR position as instructed by TCM. This is not only caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc.

OBDII Code P0729 Mazda - Automatic Transmission 6th Gear Incorrect Ratio - AutoCodes.com
P0729 Mazda Code - Automatic Transmission 6th Gear Incorrect Ratio

|Need More Information on the P0729 Mazda Code?

Need more information on how to fix the P0729 Mazda code? Get Access to Factory Service Manuals

|Need Help with the P0729 Mazda Code?

Get the P0729 Mazda code diagnosed by a professional: Find a repair shop in your area

|Code P0729 Mazda comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0729 Mazda code? Have you replaced any parts?
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