Engine-Codes.com
Engine-Codes – Generic – B1631

B1631 Code - Mirror Driver Left Circuit Failure

Quick Answer

The B1631 diagnostic trouble code (DTC) refers to a Mirror Driver Left Circuit Failure. Common causes include Faulty mirror control switch, Damaged wiring harness, Malfunctioning mirror motor. 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
B1631 indicates Mirror Driver Left Circuit Failure.
Common causes
Common causes include Faulty mirror control switch, Damaged wiring harness, Malfunctioning mirror motor.
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 07, 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 B1631 Description

The B1631 diagnostic trouble code (DTC) refers to a Mirror Driver Left Circuit Failure. This code indicates that there is a malfunction in the circuit responsible for controlling the left driver-side mirror on the vehicle. The mirror control system is an essential component for driver visibility and safety, allowing the driver to adjust the position of the mirror for optimal viewing angles.

OBDII Code B1631 - Mirror Driver Left Circuit Failure
B1631 Code - Mirror Driver Left Circuit Failure

Common Causes of B1631

  1. Faulty mirror control switch.
  2. Damaged wiring harness.
  3. Malfunctioning mirror motor.
  4. Issues with the body control module.
  5. Corrosion or poor connections in the mirror circuitry.

Symptoms of B1631

  1. Inability to adjust the left driver-side mirror.
  2. Erratic movement or positioning of the mirror.
  3. Mirror not responding to control inputs.
  4. Warning light illuminated on the dashboard indicating a fault with the mirror system.

How to Fix B1631

  1. Diagnose the issue by using a scan tool to read the DTC and inspecting the mirror control switch, wiring, and motor for any visible damage.
  2. Replace the faulty mirror control switch if necessary.
  3. Repair or replace any damaged wiring in the mirror circuit.
  4. Test the mirror motor functionality and replace it if it is found to be faulty.
  5. Reset the DTC and test the mirror system to ensure proper operation.

Cost to Fix B1631

The typical repair costs for addressing a Mirror Driver Left Circuit Failure can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair for this problem can range from $100 to $300, including parts and labor. However, it is essential to consult with a professional mechanic or auto repair shop for an accurate estimate based on your vehicle's make and model, as well as the severity of the issue. Keep in mind that diagnostic time and labor rates may also impact the final cost of the repair.

Need more information about the B1631 code?

Need more information on how to fix the B1631 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1631 code diagnosed by a professional: Find a repair shop in your area

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 B1631 Code

What does the OBDII code B1631 indicate?

B1631 indicates a failure in the driver's left mirror circuit, which may affect the functionality of the left side mirror.

What are common symptoms of the B1631 code?

Common symptoms include the left side mirror not adjusting, not responding to commands, or not functioning at all.

What could cause the B1631 code to trigger?

Causes may include a faulty mirror motor, damaged wiring, a blown fuse, or issues with the vehicle's body control module (BCM).

How can I diagnose the issue related to the B1631 code?

To diagnose the issue, check the mirror's wiring and connectors for damage, inspect the fuse related to the mirror circuit, and test the mirror motor for functionality.

Is it possible to reset the B1631 code without fixing the problem?

Yes, the code can be cleared using an OBDII scanner, but if the underlying issue is not resolved, the code will likely reappear.

What tools do I need to repair a B1631 code?

You may need a multimeter to test electrical components, an OBDII scanner to read and clear codes, and basic hand tools for any disassembly.

Can I drive my vehicle with the B1631 code?

While it may be safe to drive, the lack of a functioning left mirror can pose safety risks, so it’s best to address the issue promptly.

How much does it typically cost to fix the B1631 code?

Repair costs can vary widely but may range from $50 to $300, depending on whether the issue is a simple wiring fix or requires a new mirror assembly.

Are there any DIY fixes for the B1631 code?

A DIY fix may include checking and repairing any damaged wires or connectors, replacing a blown fuse, or attempting to clean the mirror motor connections.

Discuss the causes and fixes for B1631 OBDII Code

Submit a New Comment

Code B1631 comments

No comments found for this page.