Engine-CodesGeneric – P07AF

P07AF Code - Transmission Friction Element 'G' Stuck On

Quick Answer

The diagnostic trouble code P07AF indicates that the transmission friction element 'G' is stuck on. Common causes include Worn friction material on the clutch or brake, Faulty solenoid controlling the friction element, Low transmission fluid levels or contaminated fluid. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P07AF indicates Transmission Friction Element 'G' Stuck On.
Common causes
Common causes include Worn friction material on the clutch or brake, Faulty solenoid controlling the friction element, Low transmission fluid levels or contaminated fluid.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P07AF Description

The diagnostic trouble code P07AF indicates that the transmission friction element 'G' is stuck on. This means that the clutch or brake within the transmission system that corresponds to element 'G' is not disengaging properly, causing it to remain engaged even when it should not be. This can lead to issues with shifting gears, loss of power, decreased fuel efficiency, and potential damage to other components within the transmission system.

OBDII Code P07AF - Transmission Friction Element 'G' Stuck On
P07AF Code - Transmission Friction Element 'G' Stuck On

Common Causes of P07AF

  1. Worn friction material on the clutch or brake
  2. Faulty solenoid controlling the friction element
  3. Low transmission fluid levels or contaminated fluid
  4. Mechanical damage to the transmission system
  5. Electrical issues affecting the transmission control module

Symptoms of P07AF

  1. Difficulty shifting gears
  2. Harsh or delayed gear engagement
  3. Slipping transmission
  4. Reduced fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P07AF

  1. Inspect the transmission system for any visible damage or signs of wear.
  2. Check and replace the transmission fluid if necessary.
  3. Test the solenoid controlling the friction element and replace if faulty.
  4. Replace the clutch or brake with the stuck friction element 'G'.
  5. Clear the diagnostic trouble code and test drive the vehicle to ensure proper operation.

Cost to Fix P07AF

The cost of repairing a stuck transmission friction element 'G' can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the repair cost for this issue can range from $200 to $800, including parts and labor. However, it's important to note that labor rates and part prices can vary significantly based on location, the make and model of the vehicle, and the specific repair shop. It is recommended to obtain quotes from multiple reputable repair facilities to get a more accurate estimate for this repair.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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