AutoCodes – Generic – P1F63

P1F63 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 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 1,291

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 Apr 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1F63 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 - Hybrid/EV System Voltage Discharge Circuit Performance - AutoCodes.com — P1F63 Code - Hybrid/EV System Voltage Discharge Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1F63?

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?

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 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 code?

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Need Help with the Code?

Get the P1F63 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1F63 Buick — Hybrid/EV System Voltage Discharge Circuit Performance
P1F63 Cadillac — Hybrid/EV System Voltage Discharge Circuit Performance
P1F63 Chevrolet — Hybrid/EV System Voltage Discharge Circuit Performance
P1F63 GMC — Hybrid/EV System Voltage Discharge Circuit Performance
P1F63 Saturn — Hybrid/EV System Voltage Discharge Circuit Performance

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 Code

1. What does the OBDII code P1F63 mean?

P1F63 indicates an issue with the Hybrid/EV System Voltage Discharge Circuit Performance, meaning the system is not properly discharging high-voltage electricity as expected.

2. What are the common symptoms of a P1F63 code?

Symptoms may include a check engine light, reduced hybrid system performance, limited vehicle drivability, or the vehicle failing to start.

3. What causes the P1F63 code to appear?

Common causes include a faulty voltage discharge circuit, malfunctioning relays, damaged wiring, or issues with the hybrid/EV battery control module.

4. Can I drive my car with a P1F63 code?

Itâ€™s not recommended, as the code relates to the high-voltage system, which could pose safety risks or further damage the vehicle if ignored.

5. How is the P1F63 code diagnosed?

A technician will use a professional OBDII scanner to confirm the code, inspect the voltage discharge circuit, check wiring and connectors, and test the hybrid control module and related components.

6. What repairs can fix the P1F63 code?

Repairs may involve replacing the voltage discharge circuit, repairing damaged wiring, or reprogramming or replacing the hybrid/EV control module.

7. Is the P1F63 code specific to any car manufacturer?

While P1F63 is a generic OBDII code, it is most commonly associated with hybrid or electric vehicles from manufacturers like Chevrolet, Toyota, or Honda.

8. How much does it cost to fix a P1F63 code?

Repair costs vary depending on the issue but can range from $200 to $1,500 or more, depending on whether parts like the voltage discharge circuit or control module need replacement.

9. Can a dead hybrid battery cause the P1F63 code?

A failing or improperly charged hybrid/EV battery can contribute to this code, as it impacts the voltage regulation process.

10. How can I prevent the P1F63 code from recurring?

Ensure regular maintenance of your hybrid/EV system, inspect high-voltage wiring for damage, and address any warning lights promptly to avoid further issues.