AutoCodesGMC – P1F63 GMC

P1F63 GMC Code - Hybrid/EV System Voltage Discharge Circuit Performance

Quick Answer

This is an internal fault detection of the power inverter module, often referred to as the drive motor generator power inverter module. Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter 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
P1F63 GMC indicates Hybrid/EV System Voltage Discharge Circuit Performance.
Common causes
Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter 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 861
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 27, 2020
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Code P1F63 GMC Description

This is an internal fault detection of the power inverter module, often referred to as the drive motor generator power inverter module. This fault is handled inside the power inverter module, and no external circuits are involved.
OBDII Code P1F63 GMC - Hybrid/EV System Voltage Discharge Circuit Performance - AutoCodes.com
P1F63 GMC Code - Hybrid/EV System Voltage Discharge Circuit Performance

What are the Possible Causes of the DTC P1F63 GMC?

  • Faulty Power Inverter Module
  • Power Inverter Module harness is open or shorted
  • Power Inverter Module circuit poor electrical connection

How to Fix the DTC P1F63 GMC?

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 P1F63 GMC 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 P1F63 GMC code?

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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 P1F63 GMC Code

What does the OBDII code P1F63 mean for my GMC?

The OBDII code P1F63 indicates a performance issue in the hybrid or electric vehicle’s voltage discharge circuit, which may affect the battery management system.

What are common symptoms associated with the P1F63 code?

Symptoms may include warning lights on the dashboard, reduced power or performance, battery charging issues, and unusual noises from the hybrid system.

What could cause the P1F63 code to trigger?

Common causes include a faulty voltage discharge circuit, issues with the hybrid battery or its connections, a malfunctioning inverter, or problems with the battery management system.

Can I drive my vehicle if the P1F63 code is present?

It is not recommended to drive the vehicle, as it may lead to reduced performance and could potentially cause further damage to the hybrid system.

How can I diagnose the issue related to the P1F63 code?

Start by using an OBD-II scanner to confirm the code, inspect the voltage discharge circuit for damage or corrosion, check the hybrid battery and connections, and test the inverter for proper function.

What repairs might be necessary to resolve the P1F63 code?

Repairs can include replacing damaged wiring or connectors, fixing or replacing the hybrid battery, or servicing the inverter and battery management system components.

Is it safe to attempt repairs for the P1F63 code myself?

If you have experience with hybrid systems and electrical components, you may attempt repairs; however, it is often safer and more effective to consult a qualified technician due to the complexity and high voltage involved.

How much might it cost to fix a P1F63 code issue?

Repair costs can vary widely depending on the exact issue, ranging from minor fixes around $100 to several thousand dollars if a major component like the hybrid battery or inverter needs replacing.

Will clearing the P1F63 code make the problem go away?

Clearing the code may temporarily reset the warning lights, but if the underlying issue is not fixed, the code will likely reappear and the symptoms will persist.

Discuss the causes and fixes for P1F63 GMC OBDII Code

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