Engine-CodesDodge – B1D04 Dodge

B1D04 Dodge Code - Mirror Adjust Switch Input Circuit Performance

Quick Answer

The B1D04 Dodge diagnostic trouble code (DTC) indicates an issue with the mirror adjust switch input circuit performance in the vehicle. Common causes include Faulty mirror adjust switch, Damaged or frayed wiring in the mirror adjust switch circuit, Defective control module that processes mirror adjust signals. 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
B1D04 Dodge indicates Mirror Adjust Switch Input Circuit Performance.
Common causes
Common causes include Faulty mirror adjust switch, Damaged or frayed wiring in the mirror adjust switch circuit, Defective control module that processes mirror adjust signals.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B1D04 Dodge Description

The B1D04 Dodge diagnostic trouble code (DTC) indicates an issue with the mirror adjust switch input circuit performance in the vehicle. This code specifically relates to the electronic control system that manages the mirror adjustment functions. The mirror adjust switch is a component typically located on the driver's side door panel that allows the driver to adjust the position of the side mirrors for optimal visibility.

OBDII Code B1D04 Dodge - Mirror Adjust Switch Input Circuit Performance
B1D04 Dodge Code - Mirror Adjust Switch Input Circuit Performance

Common Causes of B1D04 Dodge

  1. Faulty mirror adjust switch.
  2. Damaged or frayed wiring in the mirror adjust switch circuit.
  3. Defective control module that processes mirror adjust signals.
  4. Poor electrical connections or loose connectors.
  5. Water damage or corrosion in the mirror adjust switch components.

Symptoms of B1D04 Dodge

  1. Inability to adjust the position of the side mirrors.
  2. Side mirrors adjust sporadically or erratically.
  3. Malfunctioning mirror adjust switch.
  4. Warning light on the dashboard related to mirror adjustment.

How to Fix B1D04 Dodge

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to read the DTC and identify the faulty component.
  2. Inspect the mirror adjust switch and wiring for any visible damage or loose connections. Replace or repair as necessary.
  3. Test the control module for proper functionality and replace if found to be defective.
  4. Clear the DTC from the vehicle's memory using the diagnostic scanner.
  5. Test the mirror adjust function to ensure proper operation after repairs have been completed.

Cost to Fix B1D04 Dodge

The typical repair costs for addressing the B1D04 Dodge code can vary depending on the specific cause of the issue and the required repairs. In general, the cost of parts for a mirror adjust switch replacement can range from $50 to $150, while labor costs may add an additional $50 to $100 per hour. Overall, the total repair cost for this issue could range from $100 to $300, excluding any additional diagnostic fees or taxes.

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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 B1D04 Dodge Code

1. What does the OBDII code B1D04 mean on a Dodge vehicle?

The B1D04 code indicates an issue with the Mirror Adjust Switch Input Circuit's performance, meaning the signal from the mirror adjust switch is not within the expected range or functioning properly.

2. What are the common symptoms of the B1D04 code?

Symptoms may include the side mirror adjustment not working, erratic mirror movement, or unresponsive mirror controls.

3. What causes the B1D04 code to trigger?

Common causes include a faulty mirror adjust switch, damaged wiring or connectors in the circuit, or a malfunctioning Body Control Module (BCM).

4. Can I still drive my Dodge if the B1D04 code is present?

Yes, you can still drive the vehicle, but you may not be able to adjust the side mirrors, which can impact visibility and safety.

5. How do I diagnose the B1D04 code on a Dodge?

Start by inspecting the mirror adjust switch, checking for damaged or loose wiring, and scanning the system with an OBDII scanner to confirm the fault.

6. How can I fix the B1D04 code?

Repairs may involve replacing the mirror adjust switch, repairing damaged wiring, cleaning corroded connectors, or, in rare cases, reprogramming or replacing the BCM.

7. How much does it cost to fix the B1D04 code?

The cost depends on the issue but typically ranges from $50 to $200 for parts and labor, depending on whether the switch, wiring, or BCM needs attention.

8. Can a blown fuse cause the B1D04 code?

While unlikely, a blown fuse in the mirror adjustment circuit could potentially cause issues and should be checked during diagnosis.

9. Is the B1D04 code a common issue in Dodge vehicles?

It’s not extremely common but can occur, especially in older models or vehicles with frequent use of the mirror adjustment feature.

10. Do I need to reset the B1D04 code after repairs?

Yes, after completing repairs, clear the code with an OBDII scanner and test the system to ensure the issue is resolved.

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