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P189C 2015 Chevrolet Silverado Code - Transmission Range Command Message Performance

Quick Answer

The P189C diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to "Transmission Range Command Message Performance." This code typically indicates a problem with the transmission range sensor, which is responsible for determining the position of the gear selector in an automatic transmission vehicle. Common causes include Faulty transmission range sensor, Wiring or electrical connection issues, Malfunctioning TCM. 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
P189C 2015 Chevrolet Silverado indicates Transmission Range Command Message Performance.
Common causes
Common causes include Faulty transmission range sensor, Wiring or electrical connection issues, Malfunctioning TCM.
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 08, 2024
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Code P189C 2015 Chevrolet Silverado Description

The P189C diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to "Transmission Range Command Message Performance." This code typically indicates a problem with the transmission range sensor, which is responsible for determining the position of the gear selector in an automatic transmission vehicle. The transmission range sensor sends this information to the transmission control module (TCM) to help the vehicle shift gears accurately and smoothly.

OBDII Code P189C 2015 Chevrolet Silverado - Transmission Range Command Message Performance
P189C 2015 Chevrolet Silverado Code - Transmission Range Command Message Performance

Common Causes of P189C 2015 Chevrolet Silverado

  1. Faulty transmission range sensor
  2. Wiring or electrical connection issues
  3. Malfunctioning TCM
  4. Low transmission fluid levels
  5. Software or programming issues

Symptoms of P189C 2015 Chevrolet Silverado

  1. Erratic or delayed shifting
  2. Harsh shifting
  3. Inability to shift gears
  4. Check Engine Light illuminated
  5. Transmission slipping

How to Fix P189C 2015 Chevrolet Silverado

  1. Begin by using a scan tool to diagnose the specific cause of the P189C code.
  2. Inspect the wiring and electrical connections related to the transmission range sensor for any damage or corrosion. Repair or replace as needed.
  3. Check the transmission fluid level and condition. Top off or replace the fluid if necessary.
  4. Test the transmission range sensor and TCM for proper function. Replace any faulty components.
  5. Clear the code from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P189C 2015 Chevrolet Silverado

The cost of repairing a P189C code on a 2015 Chevrolet Silverado can vary depending on the specific cause of the issue and the labor rates in your area. In general, you can expect to pay anywhere from $200 to $500 for parts and labor to address this problem. Keep in mind that diagnostic time and labor rates can vary, so it's a good idea to get a few quotes from reputable auto repair shops in your area to get a more accurate 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.

Frequently Asked Questions about P189C 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P189C in a 2015 Chevrolet Silverado?

The common symptoms of code P189C include issues with shifting gears, hesitation or jerking when accelerating, and the transmission slipping.

2. What are the possible causes of OBDII code P189C in a 2015 Chevrolet Silverado?

Possible causes of code P189C can include a faulty transmission range sensor, wiring issues in the transmission control module, or a malfunctioning transmission control module itself.

3. How can I diagnose OBDII code P189C in my 2015 Chevrolet Silverado?

Diagnosing code P189C typically involves using a professional OBDII scanner to retrieve the fault code, checking the transmission range sensor for proper operation, and inspecting the wiring and connections related to the transmission control module.

4. Can I continue driving my 2015 Chevrolet Silverado with OBDII code P189C?

It is not recommended to continue driving your vehicle with code P189C present, as it can lead to further damage to the transmission and potentially result in unsafe driving conditions.

5. How can I repair OBDII code P189C in my 2015 Chevrolet Silverado?

Repairing code P189C may involve replacing the transmission range sensor, repairing any damaged wiring, or replacing the transmission control module if necessary.

6. Is it possible to reset OBDII code P189C in a 2015 Chevrolet Silverado?

While you can clear the fault code with an OBDII scanner, it is important to address the underlying issue causing code P189C to prevent it from reoccurring.

7. Are there any preventative maintenance tips to avoid OBDII code P189C in a 2015 Chevrolet Silverado?

Regularly servicing your transmission, checking for any signs of wear or damage in the transmission components, and addressing any transmission-related issues promptly can help prevent code P189C from occurring.

8. Can a DIY enthusiast repair OBDII code P189C in a 2015 Chevrolet Silverado?

Repairing code P189C may require advanced knowledge and tools, so it is recommended to consult a professional mechanic for proper diagnosis and repair.

9. How long does it typically take to repair OBDII code P189C in a 2015 Chevrolet Silverado?

The repair time for code P189C can vary depending on the exact cause of the issue, but it may take a few hours to a full day to diagnose and repair the problem.

10. Will OBDII code P189C cause my 2015 Chevrolet Silverado to fail an emissions test?

Code P189C may cause your vehicle to fail an emissions test, as it indicates a fault in the transmission system that can affect the overall performance of the vehicle.

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