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Engine-Codes – Generic – P072B

P072B Code - Stuck In Reverse

Quick Answer

The diagnostic trouble code P072B indicates that the vehicle's transmission is stuck in reverse gear. Common causes include Broken shift linkage, Worn transmission gear, Faulty transmission control module or sensor. 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
P072B indicates Stuck In Reverse.
Common causes
Common causes include Broken shift linkage, Worn transmission gear, Faulty transmission control module or sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P072B Description

The diagnostic trouble code P072B indicates that the vehicle's transmission is stuck in reverse gear. This can be a serious issue that affects the vehicle's performance, safety, and drivability. When a vehicle is stuck in reverse, it will be unable to shift into any other gears, making it impossible to drive forward.

OBDII Code P072B - Stuck In Reverse
P072B Code - Stuck In Reverse

Common Causes of P072B

  1. Broken shift linkage
  2. Worn transmission gear
  3. Faulty transmission control module or sensor
  4. Low transmission fluid levels
  5. Contaminated transmission fluid

Symptoms of P072B

  1. Inability to shift out of reverse gear
  2. Grinding or clunking noises when trying to shift gears
  3. Delayed or harsh shifting
  4. Dashboard warning lights related to transmission issues

How to Fix P072B

  1. Perform a thorough inspection of the transmission system to identify the root cause of the issue.
  2. Check and refill transmission fluid to ensure proper levels.
  3. Inspect and replace any damaged shift linkage or transmission gears.
  4. Test and potentially replace the transmission control module or sensor.
  5. Clear the trouble codes from the vehicle's computer system and test drive to ensure the issue has been resolved.

Cost to Fix P072B

The cost of repairing a vehicle stuck in reverse can vary depending on the specific cause of the issue and the extent of the damage. On average, the repair costs for this type of transmission problem can range from $500 to $1500. This estimate includes parts and labor, but it is important to note that prices can vary significantly based on factors such as the vehicle make and model, the location of the repair shop, and the type of transmission in the vehicle. It is recommended to obtain quotes from multiple repair shops to get a more accurate cost estimate for the necessary repairs.

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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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