AutoCodes – GMC – P17DF 2017 GMC Sierra

P17DF 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: P17DF 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 186

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 P17DF 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 P17DF 2017 GMC Sierra - Transmission Range Control Module System High Voltage - AutoCodes.com — P17DF 2017 GMC Sierra Code - Transmission Range Control Module System High Voltage

What does this mean?

What are the Possible Causes of the DTC P17DF 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 P17DF 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 P17DF 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 P17DF 2017 GMC Sierra code?

Need more information on how to fix the P17DF 2017 GMC Sierra code? Get Access to Factory Service Manuals

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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 P17DF 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P17DF in a 2017 GMC Sierra related to the Transmission Range Control Module System High Voltage?

- Common symptoms include harsh shifting, transmission slipping, and the vehicle going into limp mode.

2. What can cause the OBDII code P17DF in a 2017 GMC Sierra?

- The code P17DF is usually triggered by a malfunction in the Transmission Range Control Module or issues with the wiring harness.

3. How serious is the OBDII code P17DF in a 2017 GMC Sierra?

- The code P17DF indicates a high voltage issue in the Transmission Range Control Module system, which can lead to transmission problems and should be addressed promptly.

4. Can I continue driving my 2017 GMC Sierra with the OBDII code P17DF present?

- It's not recommended to continue driving the vehicle with the code P17DF active as it can lead to further damage to the transmission.

5. How can I diagnose the OBDII code P17DF in my 2017 GMC Sierra?

- Diagnosing the code P17DF typically involves using a scan tool to retrieve the trouble codes, checking the Transmission Range Control Module for faults, and inspecting the wiring harness for any damage.

6. What are some possible repair tips for fixing the OBDII code P17DF in a 2017 GMC Sierra?

- Repair tips may include checking and repairing any damaged wiring, replacing the Transmission Range Control Module if necessary, and clearing the trouble codes to see if the issue recurs.

7. Is it possible to reset the OBDII code P17DF in a 2017 GMC Sierra without addressing the underlying issue?

- While clearing the trouble codes may temporarily turn off the Check Engine Light, it's important to address the root cause of the code to prevent further issues.

8. How much does it typically cost to repair the OBDII code P17DF in a 2017 GMC Sierra?

- Repair costs for the code P17DF can vary depending on the extent of the issue, but it's advisable to consult with a professional mechanic for an accurate estimate.

9. Can a DIY enthusiast fix the OBDII code P17DF in a 2017 GMC Sierra?

- While some basic troubleshooting steps can be taken by a DIY enthusiast, diagnosing and repairing the code P17DF may require specialized tools and expertise best handled by a professional mechanic.

10. Are there any recalls or technical service bulletins related to the OBDII code P17DF in a 2017 GMC Sierra?

- It's advisable to check with the manufacturer or a GMC dealership to inquire about any recalls or technical service bulletins related to the code P17DF in your specific vehicle model.