AutoCodes – Generic – P1F03

P1F03 Code - Battery Charger Control Module Supply Voltage Performance

Quick Answer

The battery charger contains several internal sensor diagnostics that require the vehicle AC supply to be in the proper range. Common causes include Faulty Battery Charger, Battery Charger harness is open or shorted, Battery Charger 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: P1F03 indicates Battery Charger Control Module Supply Voltage Performance.
Common causes: Common causes include Faulty Battery Charger, Battery Charger harness is open or shorted, Battery Charger 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 1,911

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 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1F03 Description

The battery charger contains several internal sensor diagnostics that require the vehicle AC supply to be in the proper range. These diagnostics are internal battery charger diagnostics, but need the correct AC voltage to run properly.

OBDII Code P1F03 - Battery Charger Control Module Supply Voltage Performance - AutoCodes.com — P1F03 Code - Battery Charger Control Module Supply Voltage Performance

What does this mean?

What are the Possible Causes of the DTC P1F03?

Faulty Battery Charger
Battery Charger harness is open or shorted
Battery Charger circuit poor electrical connection

How to Fix the DTC P1F03?

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 P1F03 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 P1F03 code?

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Need Help with the Code?

Get the P1F03 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1F03 Buick — Battery Charger Control Module Supply Voltage Performance
P1F03 Cadillac — Battery Charger Control Module Supply Voltage Performance
P1F03 Chevrolet — Battery Charger Control Module Supply Voltage Performance
P1F03 GMC — Battery Charger Control Module Supply Voltage Performance
P1F03 Saturn — Battery Charger Control Module Supply Voltage 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 P1F03 Code

1. What are the common symptoms of OBDII code P1F03 (Battery Charger Control Module Supply Voltage Performance)?

- Common symptoms include the Check Engine Light coming on, poor battery charging performance, and potential battery draining issues.

2. What are some possible causes of OBDII code P1F03?

- Possible causes may include a faulty battery charger control module, a weak or failing battery, issues with the charging system, or loose or corroded electrical connections.

3. How can I diagnose the OBDII code P1F03?

- Diagnosis typically involves using a scan tool to retrieve the code, checking the battery charger control module for proper functioning, testing the battery and charging system, and inspecting electrical connections for any issues.

4. What should I do if I encounter OBDII code P1F03?

- If you encounter this code, it is recommended to address the issue promptly to avoid potential battery-related problems. Diagnose the root cause, repair or replace any faulty components, and clear the code to see if the issue is resolved.

5. Are there any DIY repair tips for OBDII code P1F03?

- DIY repair tips may include checking and cleaning electrical connections, testing the battery and charging system using a multimeter, and ensuring the battery charger control module is functioning correctly.

6. Can a low or weak battery cause OBDII code P1F03 to trigger?

- Yes, a low or weak battery can potentially cause this code to trigger as the battery charger control module may struggle to maintain proper voltage levels for charging.

7. Is it safe to continue driving with OBDII code P1F03 present?

- It is generally not recommended to continue driving with this code present, as it may lead to battery-related issues and potential vehicle breakdowns. Address the problem as soon as possible.

8. How much does it typically cost to repair OBDII code P1F03?

- The cost of repairing this code can vary depending on the root cause of the issue, parts needed for replacement, and labor costs. It is advisable to consult a professional mechanic for a more accurate estimate.

9. Can environmental factors affect the triggering of OBDII code P1F03?

- Yes, extreme temperatures or weather conditions can sometimes impact the performance of the battery charger control module and potentially lead to the triggering of this code.

10. Is resetting the Check Engine Light after addressing OBDII code P1F03 necessary?

- Yes, it is recommended to reset the Check Engine Light after addressing the code to clear the vehicle's system and verify if the repair was successful.