AutoCodes – RAM – B1D28 RAM

B1D28 RAM Code - Mirror Motor Common Control Circuit High

Quick Answer

When the Memory Mirror Module senses voltage present on the Mirror Motor Common Control circuit, when there should not be, 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: B1D28 RAM indicates Mirror Motor Common Control Circuit High.
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 673

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 B1D28 RAM Description

When the Memory Mirror Module senses voltage present on the Mirror Motor Common Control circuit, when there should not be, for over 10ms, this Diagnostic Trouble Code (DTC) will set.

OBDII Code B1D28 RAM - Mirror Motor Common Control Circuit High - AutoCodes.com — B1D28 RAM Code - Mirror Motor Common Control Circuit High

What does this mean?

What are the Possible Causes of the DTC B1D28 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 B1D28 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 B1D28 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 B1D28 RAM Code

1. What are the common symptoms of OBDII code B1D28 RAM titled Mirror Motor Common Control Circuit High?

The common symptoms include non-functioning power mirrors, erratic mirror movement, and illuminated mirror control warning lights on the dashboard.

2. What are the possible causes of OBDII code B1D28 RAM?

Possible causes include damaged wiring or connectors in the mirror motor circuit, a faulty mirror motor control module, or a malfunctioning mirror motor itself.

3. How can I diagnose the OBDII code B1D28 RAM issue?

Diagnosis involves using an OBDII scanner to read the code, inspecting the mirror motor wiring and connectors for damage, testing the mirror motor control module, and checking the mirror motor operation.

4. What are some repair tips for fixing OBDII code B1D28 RAM?

Repair tips include repairing or replacing damaged wiring and connectors, replacing the mirror motor control module if faulty, and replacing the mirror motor if necessary.

5. Can I drive my vehicle with OBDII code B1D28 RAM active?

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

6. How do I reset OBDII code B1D28 RAM after making repairs?

After making the necessary repairs, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the code.

7. Is OBDII code B1D28 RAM a serious issue?

While the issue may not affect the overall drivability of the vehicle, it is important to address it to ensure the proper functioning of the mirror motor system and maintain vehicle safety.

8. Can extreme weather conditions cause OBDII code B1D28 RAM to trigger?

Yes, extreme weather conditions such as extreme cold or moisture can sometimes lead to electrical issues in the mirror motor circuit, triggering the B1D28 RAM code.

9. Are there any preventive measures to avoid OBDII code B1D28 RAM in the future?

To prevent this code from recurring, regularly inspect the mirror motor wiring for any signs of damage, keep the connectors clean and secure, and address any mirror motor issues promptly.

10. Does OBDII code B1D28 RAM affect other electrical systems in the vehicle?

While the code specifically relates to the mirror motor common control circuit, it is advisable to inspect other related electrical systems for any potential issues that may be interconnected.