AutoCodes – Generic – B1D4D

B1D4D Code - Memory Switch Input Circuit Stuck

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Memory Select Switch Mux is under 2.6 volts for over 30 seconds. Common causes include Faulty Memory Set Switch, Memory Set Switch harness is open or shorted, Memory Set Switch 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: B1D4D indicates Memory Switch Input Circuit Stuck.
Common causes: Common causes include Faulty Memory Set Switch, Memory Set Switch harness is open or shorted, Memory Set Switch 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,743

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 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1D4D Description

The Diagnostic Trouble Code (DTC) sets when the Memory Select Switch Mux is under 2.6 volts for over 30 seconds.

OBDII Code B1D4D - Memory Switch Input Circuit Stuck - AutoCodes.com — B1D4D Code - Memory Switch Input Circuit Stuck

What does this mean?

What are the Possible Causes of the DTC B1D4D?

Faulty Memory Set Switch
Memory Set Switch harness is open or shorted
Memory Set Switch circuit poor electrical connection
Faulty Door Module

How to Fix the DTC B1D4D?

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 B1D4D 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 B1D4D code?

Need more information on how to fix the B1D4D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1D4D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1D4D Chrysler — Memory Switch Input Circuit Stuck
B1D4D Dodge — Memory Switch Input Circuit Stuck
B1D4D Jeep — Memory Switch Input Circuit Stuck
B1D4D RAM — Memory Switch Input Circuit Stuck

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 B1D4D Code

1. What are the common symptoms of OBDII code B1D4D, Memory Switch Input Circuit Stuck?

- Common symptoms include issues with the memory seat function, failure of the memory switch to respond, and warning lights on the dashboard.

2. What causes the OBDII code B1D4D, Memory Switch Input Circuit Stuck?

- The code is typically triggered by a malfunction in the memory switch system, faulty wiring, or a damaged memory switch itself.

3. How can I diagnose the OBDII code B1D4D, Memory Switch Input Circuit Stuck?

- Diagnosis involves checking the memory switch, inspecting the wiring for any damage, and using a scan tool to retrieve the code and related data.

4. Can I continue driving with the OBDII code B1D4D, Memory Switch Input Circuit Stuck?

- It is generally safe to continue driving with this code, but it is recommended to address the issue as soon as possible to avoid further complications.

5. How do I repair OBDII code B1D4D, Memory Switch Input Circuit Stuck?

- Repair typically involves replacing the faulty memory switch, repairing damaged wiring, or resetting the memory switch system if it is a temporary issue.

6. Is it possible to reset the OBDII code B1D4D, Memory Switch Input Circuit Stuck without repairs?

- While clearing the code with a scan tool may temporarily remove the warning lights, the underlying issue causing the code will persist until properly repaired.

7. Are there any DIY tips for fixing the OBDII code B1D4D, Memory Switch Input Circuit Stuck?

- DIY tips may include checking for loose connections, inspecting the memory switch for physical damage, and ensuring proper power supply to the switch.

8. How much does it cost to repair the OBDII code B1D4D, Memory Switch Input Circuit Stuck?

- The cost of repair can vary depending on the extent of the issue, but it may range from a few dollars for simple fixes to a couple of hundred dollars for more complex repairs at a mechanic.

9. Can a faulty memory switch cause other electrical issues in the vehicle?

- Yes, a faulty memory switch can potentially cause other electrical issues such as malfunctions in the seat adjustment system or interference with other electronic components.

10. Is it recommended to seek professional help for diagnosing and repairing the OBDII code B1D4D, Memory Switch Input Circuit Stuck?

- It is advisable to seek professional help, especially if you are not familiar with automotive electrical systems, to accurately diagnose and repair the issue to prevent further complications.