AutoCodes – RAM – B1D2B RAM

B1D2B RAM 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 RAM 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 452

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

What does this mean?

What are the Possible Causes of the DTC B1D2B RAM?

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 RAM?

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 RAM 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.

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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 B1D2B RAM Code

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

The common symptoms include the mirror not adjusting vertically, erratic mirror movement, or the mirror getting stuck in one position.

2. What could be causing the OBDII code B1D2B RAM for Mirror Vertical Motor Control Circuit Low?

Possible causes include a faulty mirror vertical motor, damaged wiring or connectors in the mirror circuit, or a problem with the mirror control switch.

3. How can I diagnose the issue related to OBDII code B1D2B RAM for Mirror Vertical Motor Control Circuit Low?

You can diagnose the problem by conducting a visual inspection of the mirror and its wiring, testing the mirror vertical motor for proper functionality, and using a scan tool to check for the specific fault code.

4. What is the recommended repair for OBDII code B1D2B RAM for Mirror Vertical Motor Control Circuit Low?

The recommended repair involves repairing or replacing any damaged wiring or connectors, replacing the faulty mirror vertical motor if necessary, and clearing the fault code with a scan tool.

5. Can I reset the OBDII code B1D2B RAM for Mirror Vertical Motor Control Circuit Low without fixing the underlying issue?

Resetting the code without addressing the root cause may temporarily clear the error code, but the issue will likely reappear until the problem is properly diagnosed and repaired.

6. Are there any DIY tips for troubleshooting OBDII code B1D2B RAM for Mirror Vertical Motor Control Circuit Low?

DIY tips include checking the mirror fuse, ensuring the mirror switch is functioning correctly, and carefully inspecting the mirror wiring for any visible damage.

7. Is it safe to drive with the OBDII code B1D2B RAM for Mirror Vertical Motor Control Circuit Low?

It is generally safe to drive with this code, but it is recommended to address the issue promptly to ensure proper functionality of the mirror adjustment system.

8. How much does it cost to repair OBDII code B1D2B RAM for Mirror Vertical Motor Control Circuit Low?

The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing the mirror vertical motor, repairing wiring, or addressing other related components.

9. Can extreme weather conditions affect the occurrence of OBDII code B1D2B RAM for Mirror Vertical Motor Control Circuit Low?

Extreme weather conditions can potentially impact the mirror motor's performance or cause electrical issues that may trigger the fault code, so it's important to consider environmental factors during diagnosis.

10. Will fixing OBDII code B1D2B RAM for Mirror Vertical Motor Control Circuit Low improve overall vehicle performance?

Fixing this code will primarily restore proper functionality to the mirror adjustment system and ensure that the mirror can be adjusted vertically as needed.