AutoCodes – Dodge – B1D31 Dodge

B1D31 Dodge Code - Mirror Horizontal Motor Control Circuit Open

Quick Answer

When the Memory Mirror Module senses an open condition on the Mirror Horizontal Motor Driver circuit during a mirror operation, 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: B1D31 Dodge indicates Mirror Horizontal Motor Control Circuit Open.
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 563

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 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1D31 Dodge Description

When the Memory Mirror Module senses an open condition on the Mirror Horizontal Motor Driver circuit during a mirror operation, for over 10ms, this Diagnostic Trouble Code (DTC) will set.

OBDII Code B1D31 Dodge - Mirror Horizontal Motor Control Circuit Open - AutoCodes.com — B1D31 Dodge Code - Mirror Horizontal Motor Control Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1D31 Dodge?

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 B1D31 Dodge?

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 B1D31 Dodge 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 B1D31 Dodge Code

1. What are the common symptoms of OBDII code B1D31 Dodge (Mirror Horizontal Motor Control Circuit Open)?

The common symptoms include the power mirror not adjusting horizontally, mirror movement being erratic, or complete failure of the mirror motors.

2. What are the possible causes of OBDII code B1D31 Dodge?

The causes can vary, but common ones include a faulty mirror motor, damaged wiring or connectors in the mirror circuit, or a malfunctioning mirror control switch.

3. How can I diagnose the issue related to OBDII code B1D31 Dodge?

You can diagnose the issue by inspecting the mirror motor, checking the wiring and connectors for damage, and using a multimeter to test for continuity and voltage in the circuit.

4. Can I repair the Mirror Horizontal Motor Control Circuit Open issue myself?

If you have experience with automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty mirror motor, repairing damaged wiring, or fixing loose connectors.

5. Are there any quick fixes or temporary solutions for OBDII code B1D31 Dodge?

While there may be temporary solutions like manually adjusting the mirror position or tapping on the mirror motor to get it working temporarily, it is recommended to address the root cause of the issue for a lasting repair.

6. Will driving with OBDII code B1D31 Dodge pose any safety risks?

Driving with this code may not directly pose safety risks, but having non-functioning mirrors can compromise visibility and overall safety while driving. It is best to address the issue promptly.

7. How much does it typically cost to repair OBDII code B1D31 Dodge at a professional auto repair shop?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor at a professional auto repair shop.

8. Can resetting the OBDII system clear the B1D31 Dodge code?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear upon driving and using the mirror controls.

9. Is it safe to continue driving my vehicle with the mirror horizontal motor control circuit open?

While you can technically drive with this issue, it is not recommended due to the safety implications of having non-functioning or erratic mirror adjustments. It is best to address the problem as soon as possible.

10. How can I prevent OBDII code B1D31 Dodge from occurring in the future?

To prevent this code from occurring in the future, regularly inspect and maintain your vehicle's mirror system, including checking for any signs of damage, ensuring proper electrical connections, and addressing any issues promptly.