AutoCodes – Generic – B257D

B257D Code - B Pillar Power Sliding Door Lockout Switch Circuit Low

Quick Answer

When the Cluster/CCN senses less than 0.2 volts on the Power Sliding Door Lockout Sense circuit for longer than 10 seconds, this code will set. Common causes include Faulty Power Sliding Door Lockout Sense, Power Sliding Door Lockout Sense harness is open or shorted, Power Sliding Door Lockout Sense 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: B257D indicates B Pillar Power Sliding Door Lockout Switch Circuit Low.
Common causes: Common causes include Faulty Power Sliding Door Lockout Sense, Power Sliding Door Lockout Sense harness is open or shorted, Power Sliding Door Lockout Sense 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 970

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 Dec 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B257D Description

When the Cluster/CCN senses less than 0.2 volts on the Power Sliding Door Lockout Sense circuit for longer than 10 seconds, this code will set.

OBDII Code B257D - B Pillar Power Sliding Door Lockout Switch Circuit Low - AutoCodes.com — B257D Code - B Pillar Power Sliding Door Lockout Switch Circuit Low

What does this mean?

What are the Possible Causes of the DTC B257D?

Faulty Power Sliding Door Lockout Sense
Power Sliding Door Lockout Sense harness is open or shorted
Power Sliding Door Lockout Sense circuit poor electrical connection
Switch Bank Shorted
Faulty Instrument Cluster

How to Fix the DTC B257D?

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 B257D 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 B257D code?

Need more information on how to fix the B257D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B257D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B257D Chrysler — B Pillar Power Sliding Door Lockout Switch Circuit Low
B257D Dodge — B Pillar Power Sliding Door Lockout Switch 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 B257D Code

1. What does the OBDII code B257D mean?

The B257D code indicates a problem with the B-pillar power sliding door lockout switch circuit, specifically a low voltage condition.

2. What are common symptoms of the B257D code?

Symptoms may include the sliding door lockout feature not functioning, inability to lock or unlock the sliding doors, or intermittent operation of the sliding door controls.

3. What causes the B257D code?

Common causes include a faulty lockout switch, damaged wiring or connectors in the circuit, or a malfunctioning control module.

4. How is the B257D code diagnosed?

Technicians typically inspect the wiring and connectors for damage, test the lockout switch for proper operation, and use a multimeter to check for voltage and continuity in the circuit.

5. Can I drive my vehicle with the B257D code?

Yes, the vehicle is usually safe to drive, but the sliding door lockout feature may not function correctly, which could be inconvenient or pose a minor safety risk.

6. How can I fix the B257D code?

Repair steps may include replacing the lockout switch, repairing or replacing damaged wiring, or addressing issues with the control module.

7. Is the B257D code related to all sliding doors?

No, this code typically pertains to the lockout function of the power sliding doors, which may be specific to certain models or configurations.

8. How much does it cost to repair the B257D code?

Repair costs vary depending on the exact issue but typically range from $50 to $300, depending on parts and labor.

9. Can a faulty lockout switch cause the B257D code?

Yes, a malfunctioning lockout switch is a common cause of this code and may need replacement.

10. Do I need specialized tools to fix the B257D code?

Basic tools like a multimeter and wiring repair tools are often sufficient, but some vehicles may require specialized diagnostic equipment for testing and reset.