AutoCodes – Generic – B1547

B1547 Code - Power Window Master Circuit Failure

Quick Answer

The Body Control Module (BCM) monitors the Power Window Master Switch. Common causes include Faulty Power Window Master Switch, Power Window Master Switch harness is open or shorted, Power Window Master 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: B1547 indicates Power Window Master Circuit Failure.
Common causes: Common causes include Faulty Power Window Master Switch, Power Window Master Switch harness is open or shorted, Power Window Master 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 4,733

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 May 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1547 Description

The Body Control Module (BCM) monitors the Power Window Master Switch. The BCM sets the OBDII code when the Power Window Master Switch is not to factory specifications.

OBDII Code B1547 - Power Window Master Circuit Failure - AutoCodes.com — B1547 Code - Power Window Master Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1547?

Faulty Power Window Master Switch
Power Window Master Switch harness is open or shorted
Power Window Master Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1547?

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 B1547 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 B1547 code?

Need more information on how to fix the B1547 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1547 code diagnosed by a professional: Find a repair shop in your area

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 B1547 Code

1. What does the OBDII code B1547 mean?

B1547 indicates a Power Window Master Circuit Failure, typically involving an issue with the master switch or wiring that controls the vehicleâ€™s power windows.

2. What are the common symptoms of the B1547 code?

Symptoms may include non-functional power windows, intermittent window operation, or windows stuck in the up or down position.

3. What causes the B1547 code to appear?

Common causes include a faulty power window master switch, damaged wiring or connectors, a blown fuse, or a malfunctioning power window motor.

4. Can I still drive my car with the B1547 code?

Yes, you can still drive your car, but the power windows may not operate correctly, which could be inconvenient or a safety concern in certain situations.

5. How do I diagnose the B1547 code?

Diagnose by inspecting the power window master switch, checking for damaged wiring or loose connections, and testing the power window motor's functionality.

6. How can I fix the B1547 code?

Repairs may involve replacing the power window master switch, repairing or replacing damaged wiring, or addressing issues with the power window motor or fuse.

7. What tools are needed to troubleshoot the B1547 code?

A multimeter to test electrical connections, a basic socket set, and possibly a diagnostic scan tool to confirm the code and clear it after repairs.

8. How much does it cost to repair a B1547 code?

Repair costs vary but may range from $50 to $300, depending on whether the issue is with the switch, wiring, or motor, and whether you perform the repair yourself or hire a professional.

9. Can a blown fuse cause the B1547 code?

Yes, a blown fuse in the power window circuit can trigger this code by disrupting power to the master switch or motor.

10. Is the B1547 code specific to certain car models?

The code B1547 is not specific to one make or model but may be more common in vehicles with complex power window systems. Always consult your vehicleâ€™s service manual for model-specific information.