Engine-Codes.com
Engine-Codes – Generic – B1F04

B1F04 Code - Mirror Fold Control Circuit

Quick Answer

The B1F04 diagnostic trouble code (DTC) refers to an issue with the mirror fold control circuit in a vehicle. Common causes include Faulty mirror control module, Broken or damaged wiring in the mirror fold control circuit, Loose or corroded electrical connections. 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
B1F04 indicates Mirror Fold Control Circuit.
Common causes
Common causes include Faulty mirror control module, Broken or damaged wiring in the mirror fold control circuit, Loose or corroded electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1F04 Description

The B1F04 diagnostic trouble code (DTC) refers to an issue with the mirror fold control circuit in a vehicle. This code is typically found in modern vehicles equipped with power-folding mirrors. The mirror fold control circuit is responsible for controlling the folding and unfolding of the mirrors electronically. When this circuit malfunctions, it can lead to various issues with the operation of the power-folding mirrors.

OBDII Code B1F04 - Mirror Fold Control Circuit
B1F04 Code - Mirror Fold Control Circuit

Common Causes of B1F04

  1. Faulty mirror control module
  2. Broken or damaged wiring in the mirror fold control circuit
  3. Loose or corroded electrical connections
  4. Defective mirror folding motor
  5. Water or moisture ingress into the mirror assembly causing corrosion

Symptoms of B1F04

  1. Power-folding mirrors not responding to control inputs
  2. Mirrors folding or unfolding intermittently
  3. Unusual noises coming from the mirror motor when attempting to fold or unfold
  4. Mirrors getting stuck in a partially folded or unfolded position
  5. Mirror fold control switch not working properly

How to Fix B1F04

  1. Diagnose the issue by using a scan tool to retrieve the specific DTC and inspect the mirror fold control circuit for any visible damage.
  2. Check the wiring and connectors for any signs of damage or corrosion and repair or replace as necessary.
  3. Test the mirror folding motor to ensure it is functioning properly, and replace if faulty.
  4. Reset the mirror control module and perform a calibration procedure to ensure proper operation.
  5. Clear the DTC from the vehicle's computer system and test the power-folding mirrors to confirm the issue has been resolved.

Cost to Fix B1F04

The cost of repairing a mirror fold control circuit issue can vary depending on the specific cause of the problem and the vehicle make and model. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can add another $100 to $200. Overall, the total repair cost for this issue can be between $200 and $500. It's important to note that these are rough estimates, and actual costs may vary based on the factors mentioned earlier. It's recommended to consult with a professional mechanic for a more accurate cost estimate based on your specific vehicle.

What does this mean?

Tech Notes for B1F04

B1F04-11 MIRROR FOLD CONTROL CIRCUIT SHORT TO GROUND

B1F04-15 MIRROR FOLD CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

Need more information about the B1F04 code?

Need more information on how to fix the B1F04 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1F04 code diagnosed by a professional: Find a repair shop in your area

Code B1F04 Information for Specific Makes

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 B1F04 Code

1. What are the common symptoms of OBDII code B1F04 (Mirror Fold Control Circuit)?

- The common symptoms include the inability to fold or unfold the side mirrors electronically, erratic mirror movement, or complete mirror failure.

2. What are the possible causes of OBDII code B1F04?

- The code B1F04 can be triggered by issues such as a faulty mirror fold control switch, damaged wiring harness, defective mirror folding motor, or a malfunctioning mirror control module.

3. How can I diagnose the OBDII code B1F04 related to the Mirror Fold Control Circuit?

- To diagnose code B1F04, you can start by checking the mirror fold control switch for proper operation, inspecting the wiring for any visible damage, and testing the mirror folding motor and control module with a multimeter.

4. How can I repair OBDII code B1F04 (Mirror Fold Control Circuit) on my vehicle?

- Repairing code B1F04 may involve replacing the faulty mirror fold control switch, repairing or replacing damaged wiring, replacing the mirror folding motor, or repairing/reprogramming the mirror control module.

5. Can I still drive my vehicle with OBDII code B1F04 present?

- It is generally safe to drive your vehicle with code B1F04, as it primarily affects the electronic mirror folding functionality and does not impact the overall drivability or safety of the vehicle.

6. How do I reset OBDII code B1F04 after making the necessary repairs?

- After repairing the issues causing code B1F04, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the stored fault code.

7. Is it possible to prevent OBDII code B1F04 from occurring in the future?

- To prevent code B1F04, it's recommended to regularly inspect and maintain the mirror fold control system, avoid excessive force when folding the mirrors manually, and address any electrical issues promptly.

8. Can extreme weather conditions affect the Mirror Fold Control Circuit and trigger code B1F04?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially damage the mirror fold control system components, leading to issues and triggering code B1F04.

9. Will fixing OBDII code B1F04 require specialized tools or professional assistance?

- Repairing OBDII code B1F04 may require basic tools like a multimeter and socket set, as well as some DIY skills. However, if you are unsure or uncomfortable with the repair process, seeking professional assistance is recommended.

10. How common is OBDII code B1F04 (Mirror Fold Control Circuit) in vehicles?

- Code B1F04 related to the Mirror Fold Control Circuit is relatively common in vehicles equipped with electronic mirror folding features, especially in modern vehicles with advanced mirror control systems.

Discuss the causes and fixes for B1F04 OBDII Code

Submit a New Comment

Code B1F04 comments

No comments found for this page.