AutoCodes – Generic – B2757

B2757 Code - Memory 1 Select Switch Circuit Low

Quick Answer

The memory seat switches are normally open and are wired to the Driver Door Switch Assembly (DDSA). Common causes include Faulty Memory Seat Adjuster Switch, Memory Seat Adjuster Switch harness is open or shorted, Memory Seat Adjuster 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: B2757 indicates Memory 1 Select Switch Circuit Low.
Common causes: Common causes include Faulty Memory Seat Adjuster Switch, Memory Seat Adjuster Switch harness is open or shorted, Memory Seat Adjuster 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.

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Code Popularity 327

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 Jul 13, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code B2757 Description

The memory seat switches are normally open and are wired to the Driver Door Switch Assembly (DDSA). When a memory recall switch is pressed, the switch pulls the 5 V signal circuit from the DDSA to ground. The DDSA senses that a memory recall signal was pulled low and a serial data message is sent to the Memory Seat Module (MSM) identifying the memory request. The MSM responds to the request by commanding the driver seat to move to the preset positions. The DDSA will set the Diagnostic Trouble Code (DTC) when a short to ground is detected on a switch signal circuit or if a memory recall switch is active for 30 seconds or more.

OBDII Code B2757 - Memory 1 Select Switch Circuit Low - AutoCodes.com — B2757 Code - Memory 1 Select Switch Circuit Low

What does this mean?

What are the Possible Causes of the DTC B2757?

Faulty Memory Seat Adjuster Switch
Memory Seat Adjuster Switch harness is open or shorted
Memory Seat Adjuster Switch circuit poor electrical connection
Faulty Driver Door Switch Assembly (DDSA)

How to Fix the DTC B2757?

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 B2757 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 B2757 code?

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Need Help with the Code?

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Information for Specific Makes

B2757 Buick — Memory 1 Select Switch Circuit Low
B2757 Cadillac — Memory 1 Select Switch Circuit Low
B2757 Chevrolet — Memory 1 Select Switch Circuit Low
B2757 GMC — Memory 1 Select 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.