Engine-Codes.com
Engine-Codes – GMC – P17B2 2015 GMC Sierra

P17B2 2015 GMC Sierra Code - Transmission Range Control Module System High Voltage

Quick Answer

The P17B2 diagnostic trouble code (DTC) indicates that the Transmission Range Control Module (TRCM) in a 2015 GMC Sierra is detecting a high voltage condition within the system. Common causes include Faulty Transmission Range Control Module (TRCM), Damaged wiring or connectors in the transmission range control circuit, Malfunctioning transmission range 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
P17B2 2015 GMC Sierra indicates Transmission Range Control Module System High Voltage.
Common causes
Common causes include Faulty Transmission Range Control Module (TRCM), Damaged wiring or connectors in the transmission range control circuit, Malfunctioning transmission range 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 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P17B2 2015 GMC Sierra Description

The P17B2 diagnostic trouble code (DTC) indicates that the Transmission Range Control Module (TRCM) in a 2015 GMC Sierra is detecting a high voltage condition within the system. The TRCM is responsible for controlling the transmission range selection, ensuring that the vehicle shifts gears correctly based on the driver's input and the vehicle's speed. When the TRCM detects a high voltage, it means that the system is receiving more electrical power than it should, potentially leading to erratic transmission behavior and affecting the overall performance of the vehicle.

OBDII Code P17B2 2015 GMC Sierra - Transmission Range Control Module System High Voltage
P17B2 2015 GMC Sierra Code - Transmission Range Control Module System High Voltage

Common Causes of P17B2 2015 GMC Sierra

  1. Faulty Transmission Range Control Module (TRCM)
  2. Damaged wiring or connectors in the transmission range control circuit
  3. Malfunctioning transmission range sensor
  4. Issues with the vehicle's electrical system

Symptoms of P17B2 2015 GMC Sierra

  1. Erratic shifting behavior
  2. Harsh or delayed gear changes
  3. Slipping gears
  4. Vehicle stuck in a particular gear
  5. Limp mode activation

How to Fix P17B2 2015 GMC Sierra

  1. Diagnose the issue using a diagnostic tool to read the specific fault codes and identify the source of the high voltage condition in the TRCM system.
  2. Inspect the wiring and connectors in the transmission range control circuit for any damage or corrosion. Repair or replace any faulty components as needed.
  3. Test the transmission range sensor to ensure it is functioning correctly. Replace the sensor if it is found to be faulty.
  4. If the TRCM is determined to be the cause of the high voltage condition, replace the module with a new one compatible with the vehicle's make and model.
  5. Clear the DTC codes from the vehicle's system and test drive the vehicle to confirm that the transmission is shifting properly without any issues.

Cost to Fix P17B2 2015 GMC Sierra

The typical repair costs for addressing the P17B2 DTC in a 2015 GMC Sierra can vary depending on the specific cause of the issue and the parts and labor required. On average, the cost of replacing a Transmission Range Control Module (TRCM) can range from $300 to $600, while the cost of labor can vary between $100 to $200 per hour. Additional costs may apply if there are other components that need to be repaired or replaced. It's recommended to consult with a professional mechanic or auto repair shop to get a more accurate estimate based on the specific circumstances of the vehicle.

Need more information about the P17B2 2015 GMC Sierra code?

Need more information on how to fix the P17B2 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P17B2 2015 GMC Sierra 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 P17B2 2015 GMC Sierra Code

1. What are common symptoms of OBDII code P17B2 in a 2015 GMC Sierra related to the Transmission Range Control Module System High Voltage?

- Common symptoms include harsh shifting, transmission slipping, and the inability to shift gears smoothly.

2. What are possible causes of OBDII code P17B2 in a 2015 GMC Sierra?

- Possible causes include a faulty transmission range control module, damaged wiring or connectors, or issues with the transmission control module.

3. How can I diagnose the root cause of OBDII code P17B2 in my 2015 GMC Sierra?

- Diagnose the issue by conducting a thorough inspection of the transmission range control module and its wiring, as well as testing the transmission control module for any faults.

4. Can I continue driving my 2015 GMC Sierra with OBDII code P17B2 present?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the transmission system.

5. What are some repair tips for fixing OBDII code P17B2 in a 2015 GMC Sierra?

- Repair tips include checking and repairing any damaged wiring or connectors, replacing the faulty transmission range control module, and resetting the transmission control module.

6. Is OBDII code P17B2 in a 2015 GMC Sierra a serious issue?

- Yes, this code indicates a potential problem with the Transmission Range Control Module System High Voltage, which can affect the performance and safety of the vehicle.

7. How much does it typically cost to repair OBDII code P17B2 in a 2015 GMC Sierra?

- The cost of repairing this code can vary depending on the extent of the damage and the specific components that need to be replaced, but it can range from a few hundred to over a thousand dollars.

8. Can I reset the OBDII code P17B2 in my 2015 GMC Sierra without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is important to address the root cause of the problem to prevent further issues with the transmission system.

9. Will OBDII code P17B2 cause my 2015 GMC Sierra to go into limp mode?

- Depending on the severity of the issue, the vehicle may go into limp mode as a safety measure to prevent further damage to the transmission system.

10. How long does it take to repair OBDII code P17B2 in a 2015 GMC Sierra?

- The repair time can vary based on the extent of the damage and the availability of parts, but it typically takes a few hours to a full day to address this code.

Discuss the causes and fixes for P17B2 2015 GMC Sierra OBDII Code

Submit a New Comment

Code P17B2 2015 GMC Sierra comments

No comments found for this page.