AutoCodes – Generic – B3457

B3457 Code - Right Rear Window Up Switch Circuit Low

Quick Answer

The window switch or window switch circuits that generate this Diagnostic Trouble Code (DTC) are built-in parts of the Driver Door Switch Assembly (DDSA). Common causes include Faulty Driver Door Switch Assembly (DDSA), Driver Door Switch Assembly (DDSA) harness is open or shorted, Driver Door Switch Assembly (DDSA) 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: B3457 indicates Right Rear Window Up Switch Circuit Low.
Common causes: Common causes include Faulty Driver Door Switch Assembly (DDSA), Driver Door Switch Assembly (DDSA) harness is open or shorted, Driver Door Switch Assembly (DDSA) 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 915

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 Mar 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3457 Description

The window switch or window switch circuits that generate this Diagnostic Trouble Code (DTC) are built-in parts of the Driver Door Switch Assembly (DDSA). There are no external circuits. The DDSA internally supplies power and ground to the contacts of each of the integral window switches. When one of the switches is operated, the switch contacts close, providing the DDSA with a specific window switch signal. The DDSA processes this signal, assigns a digital message to it, and sends the message to the appropriate Driver Door Module (DDM), Passenger Front Door Module (PDM), Left Rear Door Module (LRDM), or Right Rear Door Module (RRDM), via the class 2 serial data circuit. The door module, upon receiving the message, examines other relevant information available on the class 2 serial data line in order to determine if conditions are correct for window operation to occur. If conditions are correct, the door module applies power and ground to the associated window motor and circuits in order to move the window. If the DDSA determines that one of its built in window switches is closed for more than 15 continuous seconds, it sets the DTC.

OBDII Code B3457 - Right Rear Window Up Switch Circuit Low - AutoCodes.com — B3457 Code - Right Rear Window Up Switch Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3457?

Faulty Driver Door Switch Assembly (DDSA)
Driver Door Switch Assembly (DDSA) harness is open or shorted
Driver Door Switch Assembly (DDSA) circuit poor electrical connection
Faulty Right Rear Door Module (RRDM)
Faulty Driver Door Module (DDM)

How to Fix the DTC B3457?

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 B3457 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 B3457 code?

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Need Help with the Code?

Get the B3457 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B3457 Buick — Right Rear Window Up Switch Circuit Low
B3457 Cadillac — Right Rear Window Up Switch Circuit Low
B3457 Chevrolet — Right Rear Window Up Switch Circuit Low
B3457 GMC — Right Rear Window Up 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 B3457 Code

What does the OBDII code B3457 mean?

The OBDII code B3457 indicates a problem with the right rear window up switch circuit, specifically identifying a low voltage condition in the circuit.

What are the common symptoms of a B3457 code?

Common symptoms include the right rear window not operating correctly, the window not responding to the switch, or the window being stuck in the down position.

What could cause a B3457 code to trigger?

Possible causes include a faulty right rear window switch, broken wiring or connectors in the circuit, or a malfunctioning window motor.

How can I diagnose the issue related to a B3457 code?

Start by checking the right rear window switch for functionality, inspect the wiring and connectors for damage, and test the window motor for proper operation.

Is it safe to drive with a B3457 code?

While it may not pose an immediate safety risk, the inability to operate the window may be inconvenient, and it's advisable to address the issue to avoid further complications.

What are some common repair tips for a B3457 code?

Repair tips include replacing the faulty window switch, repairing or replacing damaged wiring, and ensuring all connectors are secure and free of corrosion.

Can I clear the B3457 code without fixing the issue?

Yes, you can clear the code using an OBDII scanner, but the underlying problem will likely cause the code to reappear if not addressed.

Will a B3457 code affect other systems in my vehicle?

Generally, the B3457 code is specific to the window system and should not directly affect other systems, but it's best to ensure all related components are functioning properly.

How much does it typically cost to repair a B3457 code?

Repair costs can vary widely depending on the specific issue, ranging from a simple switch replacement costing around $50 to $200, to more extensive wiring repairs that could cost more.

Can I fix the B3457 code myself?

If you have basic automotive knowledge and tools, you may be able to diagnose and fix the issue. However, if you're unsure, it's best to consult a professional mechanic.