AutoCodes – Generic – B1D2B

B1D2B Code - Mirror Vertical Motor Control Circuit Low

Quick Answer

When the Memory Mirror Module senses a value below the tolerance of the mirror motor on the Mirror Vertical Motor Control circuit for over 10ms, this Diagnostic Trouble Code (DTC) will set. Common causes include Faulty Mirror Motor, Mirror Motor harness is open or shorted, Mirror Motor 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: B1D2B indicates Mirror Vertical Motor Control Circuit Low.
Common causes: Common causes include Faulty Mirror Motor, Mirror Motor harness is open or shorted, Mirror Motor 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 448

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 Aug 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1D2B Description

When the Memory Mirror Module senses a value below the tolerance of the mirror motor on the Mirror Vertical Motor Control circuit for over 10ms, this Diagnostic Trouble Code (DTC) will set.

OBDII Code B1D2B - Mirror Vertical Motor Control Circuit Low - AutoCodes.com — B1D2B Code - Mirror Vertical Motor Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1D2B?

Faulty Mirror Motor
Mirror Motor harness is open or shorted
Mirror Motor circuit poor electrical connection
Faulty Memory Mirror Module

How to Fix the DTC B1D2B?

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 B1D2B 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 B1D2B code?

Need more information on how to fix the B1D2B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1D2B code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1D2B Chrysler — Mirror Vertical Motor Control Circuit Low
B1D2B Dodge — Mirror Vertical Motor Control Circuit Low
B1D2B Jeep — Mirror Vertical Motor Control Circuit Low
B1D2B RAM — Mirror Vertical Motor Control Circuit Low

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 B1D2B Code

1. What are the common symptoms of OBDII code B1D2B (Mirror Vertical Motor Control Circuit Low)?

- Common symptoms include non-responsive or slow movement of the vertical mirror adjustment, erratic mirror movement, or complete failure of the mirror to adjust vertically.

2. What are the possible causes of OBDII code B1D2B?

- The code B1D2B can be triggered by issues such as a faulty mirror vertical motor, damaged wiring or connectors in the mirror control circuit, or a malfunctioning mirror control switch.

3. How can I diagnose the cause of OBDII code B1D2B?

- To diagnose the issue, you can start by visually inspecting the mirror control circuit wiring and connectors for any damages. You can also test the mirror vertical motor's functionality and check the mirror control switch for proper operation.

4. Can I drive my vehicle with OBDII code B1D2B?

- It is generally safe to drive your vehicle with this code, as it mainly affects the vertical adjustment of the mirror and does not pose a significant risk to vehicle operation or safety.

5. How can I repair OBDII code B1D2B?

- Repairing this code typically involves replacing the faulty mirror vertical motor, repairing any damaged wiring or connectors in the mirror control circuit, or addressing issues with the mirror control switch.

6. Will OBDII code B1D2B cause my check engine light to illuminate?

- This code is related to the mirror vertical motor control circuit and may not always trigger the check engine light. However, it may cause a separate warning light related to the mirror system to illuminate on the dashboard.

7. Can weather conditions affect OBDII code B1D2B?

- Extreme weather conditions, such as exposure to moisture or humidity, can potentially exacerbate issues with the mirror vertical motor control circuit, leading to the triggering of code B1D2B.

8. How much does it cost to repair OBDII code B1D2B?

- The cost of repairing this code can vary depending on the underlying issue, the cost of parts, and labor charges. It is recommended to consult a professional mechanic for an accurate diagnosis and cost estimate.

9. Is it possible to reset OBDII code B1D2B without repairs?

- Resetting the code without addressing the underlying issue may temporarily clear the code, but it is likely to reappear until the root cause is fixed. It is best to diagnose and repair the problem to prevent further issues.

10. Can OBDII code B1D2B affect other vehicle systems?

- While this code specifically relates to the mirror vertical motor control circuit, electrical issues in one part of the vehicle can sometimes impact other systems. It is recommended to address the code promptly to prevent potential secondary issues.