Engine-CodesBuick – P1201 Buick

P1201 Buick Code - Transmission Range Redundant Command Message Counter Incorrect

Quick Answer

The P1201 Buick code indicates that there is an issue with the Transmission Range Redundant Command Message Counter being incorrect. Common causes include Faulty transmission range sensor, Electrical issues such as wiring or connector problems, Software glitches in the vehicle's computer. 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
P1201 Buick indicates Transmission Range Redundant Command Message Counter Incorrect.
Common causes
Common causes include Faulty transmission range sensor, Electrical issues such as wiring or connector problems, Software glitches in the vehicle's computer.
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 Sep 10, 2024
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Code P1201 Buick Description

The P1201 Buick code indicates that there is an issue with the Transmission Range Redundant Command Message Counter being incorrect. In simpler terms, this means that the messages being sent by the transmission range sensor to the vehicle's computer are not aligning properly with the expected count. This can lead to a variety of issues with the transmission system and can affect the overall performance of the vehicle.

OBDII Code P1201 Buick - Transmission Range Redundant Command Message Counter Incorrect
P1201 Buick Code - Transmission Range Redundant Command Message Counter Incorrect

Common Causes of P1201 Buick

  1. Faulty transmission range sensor
  2. Electrical issues such as wiring or connector problems
  3. Software glitches in the vehicle's computer
  4. Transmission fluid contamination
  5. Mechanical issues within the transmission system

Symptoms of P1201 Buick

  1. Harsh shifting
  2. Hesitation when accelerating
  3. Transmission getting stuck in a certain gear
  4. Limp mode activation
  5. Check Engine Light illuminated

How to Fix P1201 Buick

  1. Use a scan tool to retrieve the trouble codes and diagnose the issue
  2. Inspect the transmission range sensor for proper operation and replace if necessary
  3. Check and repair any wiring or connector issues related to the transmission system
  4. Perform a transmission fluid flush and refill if fluid contamination is suspected
  5. Reset the transmission system and clear the trouble codes to see if the issue recurs

Cost to Fix P1201 Buick

The typical repair costs for addressing a P1201 Buick code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts for this repair may cost between $100 and $300, while labor costs can range from $150 to $400. Overall, the total repair cost for this issue may fall between $250 and $700. It's important to keep in mind that these are rough estimates and actual costs may vary based on factors such as location, vehicle make and model, and the repair shop's labor rates. It is recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.

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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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