Engine-Codes - Nissan - P0729 NISSAN

P0729 NISSAN Code - Automatic Transmission 6th Gear Incorrect Ratio

- Code Popularity: 7,975 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P0729 NISSAN Code?

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

|How to Fix the P0729 NISSAN Code?

Start by checking 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.

|P0729 NISSAN code tech notes

There is a Factory Service Bulletin for the 2009-2011 Nissan GT-R:
2009-2011 Nissan GT-R Factory Service Bulletin OBDII Code P0729

|What is the cost to diagnose the P0729 NISSAN code?

Labor: 1.0

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

|What are P0729 NISSAN code possible symptoms?

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

|What Does the P0729 NISSAN Code Mean?

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.

Automatic Transmission 6th Gear Incorrect Ratio

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