AutoCodesHonda – P1F3D Honda

P1F3D Honda Code - Voltage Control Unit Circuit Malfunction High

Quick Answer

The motor control module (generator) receives IGBT high side short-circuit information detected by the Voltage Control Unit (VCU) via serial communication and detects a malfunction and stores a DTC when the information is received continuously for the prescribed time or more. Common causes include Faulty Voltage Control Unit, Voltage Control Unit harness is open or shorted, Voltage Control Unit 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
P1F3D Honda indicates Voltage Control Unit Circuit Malfunction High.
Common causes
Common causes include Faulty Voltage Control Unit, Voltage Control Unit harness is open or shorted, Voltage Control Unit 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 1,427
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 25, 2020
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Code P1F3D Honda Description

The motor control module (generator) receives IGBT high side short-circuit information detected by the Voltage Control Unit (VCU) via serial communication and detects a malfunction and stores a DTC when the information is received continuously for the prescribed time or more.
OBDII Code P1F3D Honda - Voltage Control Unit Circuit Malfunction High - AutoCodes.com
P1F3D Honda Code - Voltage Control Unit Circuit Malfunction High

What are the Possible Causes of the DTC P1F3D Honda?

  • Faulty Voltage Control Unit
  • Voltage Control Unit harness is open or shorted
  • Voltage Control Unit circuit poor electrical connection

How to Fix the DTC P1F3D Honda?

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 P1F3D Honda 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 P1F3D Honda code?

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Need Help with the 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 P1F3D Honda Code

1. What does the OBDII code P1F3D mean on a Honda?

The P1F3D code indicates a "Voltage Control Unit Circuit Malfunction High," meaning the voltage control unit is detecting an abnormal high-voltage condition in the circuit.

2. What are the common symptoms of the P1F3D code on a Honda?

Symptoms may include an illuminated check engine light, reduced hybrid system performance, poor fuel efficiency, or the vehicle entering a limp mode.

3. What causes the P1F3D code to appear on a Honda?

Possible causes include a faulty voltage control unit, damaged wiring or connectors, a malfunctioning hybrid battery, or a failing inverter/converter.

4. Can driving with the P1F3D code damage my Honda?

Yes, driving with this code can risk further damage to the hybrid powertrain components and reduce vehicle performance, so it’s best to address the issue promptly.

5. How do you diagnose the P1F3D code on a Honda?

Diagnosis involves using an OBDII scanner to confirm the code, inspecting the voltage control unit and related wiring, checking for loose or corroded connections, and testing the hybrid battery’s performance.

6. How is the P1F3D code typically fixed on a Honda?

Common fixes include repairing or replacing the voltage control unit, fixing damaged wiring or connectors, or servicing the hybrid battery and inverter system.

7. Can a weak hybrid battery trigger the P1F3D code?

Yes, a weak or failing hybrid battery can cause voltage irregularities, potentially triggering the P1F3D code.

8. How much does it cost to repair the P1F3D code on a Honda?

Repair costs vary but could range from $200 for wiring repairs to over $1,000 if the voltage control unit or hybrid battery needs replacement.

9. Can I clear the P1F3D code without fixing the issue?

You can clear the code with an OBDII scanner, but if the root problem isn’t fixed, the code will likely return and may cause further issues.

10. Is the P1F3D code specific to hybrid Honda vehicles?

Yes, the P1F3D code is typically associated with Honda hybrid models as it relates to the voltage control unit and hybrid system components.

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