AutoCodes – Chevrolet – P179B 2015 Chevrolet Silverado

P179B 2015 Chevrolet Silverado Code - Transmission Range State Command Signal Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection. 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
P179B 2015 Chevrolet Silverado indicates Transmission Range State Command Signal Message Counter Incorrect.
Common causes
Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 236
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 29, 2022
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Code P179B 2015 Chevrolet Silverado Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Transmission Range State Command Signal Message Counter is Incorrect.
OBDII Code P179B 2015 Chevrolet Silverado - Transmission Range State Command Signal Message Counter Incorrect - AutoCodes.com
P179B 2015 Chevrolet Silverado Code - Transmission Range State Command Signal Message Counter Incorrect

What are the Possible Causes of the DTC P179B 2015 Chevrolet Silverado?

  • Faulty Transmission Control Module (TCM)
  • Transmission Control Module harness is open or shorted
  • Transmission Control Module circuit poor electrical connection

How to Fix the DTC P179B 2015 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P179B 2015 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P179B 2015 Chevrolet Silverado code?

Need more information on how to fix the P179B 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P179B 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P179B 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P179B in a 2015 Chevrolet Silverado?

The common symptoms include transmission shifting issues, hesitation or jerking during gear changes, and the Check Engine light being illuminated.

2. What could cause the OBDII code P179B to appear in a 2015 Chevrolet Silverado?

The code P179B typically indicates that the Transmission Range State Command Signal Message Counter is incorrect, which could be caused by a faulty transmission range sensor, wiring issues, or a problem with the transmission control module.

3. How serious is the OBDII code P179B in a 2015 Chevrolet Silverado?

While the vehicle may still be operable with this code present, ignoring it can lead to further transmission problems and potential safety issues. It is recommended to address the underlying cause promptly.

4. Can I continue driving my 2015 Chevrolet Silverado with the OBDII code P179B active?

It is not advisable to continue driving the vehicle with the code active, as it can lead to potential transmission damage and unsafe driving conditions. It is best to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose the OBDII code P179B in my 2015 Chevrolet Silverado?

Diagnosing the code P179B typically involves using a professional OBDII scanner to retrieve the specific fault codes and conducting a thorough inspection of the transmission range sensor, wiring, and related components.

6. What are some repair tips for fixing the OBDII code P179B in a 2015 Chevrolet Silverado?

Repair tips may include checking and repairing any damaged wiring, replacing the transmission range sensor if faulty, and resetting the transmission control module to clear the code.

7. Will resetting the OBDII code P179B in my 2015 Chevrolet Silverado make it go away permanently?

Simply resetting the code may temporarily clear it, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is essential to diagnose and repair the root cause of the problem.

8. Can a DIY enthusiast fix the OBDII code P179B in a 2015 Chevrolet Silverado?

While some basic troubleshooting steps can be performed by DIY enthusiasts, diagnosing and repairing the code P179B may require specialized tools and expertise. It is recommended to consult a professional mechanic for proper diagnosis and repair.

9. How much does it cost to repair the OBDII code P179B in a 2015 Chevrolet Silverado?

The cost of repairing the code P179B can vary depending on the underlying cause, parts needed, and labor rates. It is advisable to obtain quotes from reputable mechanics or service centers for an accurate estimate.

10. Is the OBDII code P179B a common issue in 2015 Chevrolet Silverado vehicles?

The OBDII code P179B may not be as common as some other codes, but it has been reported in 2015 Chevrolet Silverado vehicles. Proper maintenance and timely repairs can help prevent this issue from occurring.

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