AutoCodes – GMC – P17B2 2017 GMC Sierra

P17B2 2017 GMC Sierra Code - Transmission Range Control Module System High Voltage

Quick Answer

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Faulty Transmission Range Control Module, Transmission Range Control Module harness is open or shorted, Transmission Range 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: P17B2 2017 GMC Sierra indicates Transmission Range Control Module System High Voltage.
Common causes: Common causes include Faulty Transmission Range Control Module, Transmission Range Control Module harness is open or shorted, Transmission Range 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.

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Code Popularity 164

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 04, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P17B2 2017 GMC Sierra Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. The Diagnostic Trouble Code (DTC) will be set when the Transmission Range Control Module detects a system voltage below or above a threshold.

OBDII Code P17B2 2017 GMC Sierra - Transmission Range Control Module System High Voltage - AutoCodes.com — P17B2 2017 GMC Sierra Code - Transmission Range Control Module System High Voltage

What does this mean?

What are the Possible Causes of the DTC P17B2 2017 GMC Sierra?

Faulty Transmission Range Control Module
Transmission Range Control Module harness is open or shorted
Transmission Range Control Module circuit poor electrical connection

How to Fix the DTC P17B2 2017 GMC Sierra?

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 P17B2 2017 GMC Sierra 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 P17B2 2017 GMC Sierra code?

Need more information on how to fix the P17B2 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P17B2 2017 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 2017 GMC Sierra Code

1. What does the OBDII code P17B2 mean on a 2017 GMC Sierra?

P17B2 indicates a "Transmission Range Control Module System High Voltage" issue, suggesting an electrical problem in the transmission range control module.

2. What are the common symptoms of code P17B2 on a 2017 GMC Sierra?

Symptoms may include difficulty shifting gears, transmission slipping, the check engine light turning on, or the vehicle entering limp mode.

3. What causes the P17B2 code to appear on a GMC Sierra?

Common causes include a faulty transmission range control module, damaged wiring or connectors, or issues with the power supply to the module.

4. Can driving with code P17B2 damage my 2017 GMC Sierra?

Yes, driving with this code can lead to further transmission damage or unsafe driving conditions due to shifting issues.

5. How do I diagnose the P17B2 code on a GMC Sierra?

Diagnosis involves using an OBDII scanner to confirm the code, inspecting the transmission range control module, and checking the associated wiring and connectors for damage or corrosion.

6. How is the P17B2 code fixed on a 2017 GMC Sierra?

Repairs may include replacing the transmission range control module, repairing or replacing damaged wiring, or updating the module's software if applicable.

7. Is the P17B2 code covered under warranty for a 2017 GMC Sierra?

It depends on your vehicleâ€™s warranty status and coverage terms. Check with your GMC dealer for details.

8. Can a low battery cause the P17B2 code on a GMC Sierra?

Yes, a weak or failing battery can cause voltage irregularities that trigger this code.

9. How much does it typically cost to fix the P17B2 code on a 2017 GMC Sierra?

The repair cost can vary widely, ranging from $200 to $1,000 or more, depending on whether the issue is with wiring, the module, or related components.

10. Can I clear the P17B2 code without fixing the problem?

Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely return and could worsen over time.