AutoCodes – Buick – B3472 Buick

B3472 Buick Code - Right Front Window Express Up or Down 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: B3472 Buick indicates Right Front Window Express Up or Down 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 523

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 B3472 Buick 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 B3472 Buick - Right Front Window Express Up or Down Circuit Low - AutoCodes.com — B3472 Buick Code - Right Front Window Express Up or Down Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3472 Buick?

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 Passenger Front Door Module (PDM)
Faulty Driver Door Module (DDM)

How to Fix the DTC B3472 Buick?

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 B3472 Buick 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.

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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 B3472 Buick Code

1. What does the OBDII code B3472 mean on a Buick?

The code B3472 indicates a problem with the right front window express up or down circuit, specifically a low voltage issue.

2. What are the common symptoms of the B3472 code on a Buick?

Symptoms include the right front window not moving or only partially moving, unresponsive express up/down functions, or erratic window operation.

3. What causes the B3472 code to appear on a Buick?

The most common causes are a faulty window motor, damaged wiring or connectors in the express up/down circuit, or a malfunctioning door module.

4. How can I troubleshoot the B3472 code on my Buick?

Start by inspecting the wiring and connectors for damage or corrosion, test the window motor, and check for proper voltage at the door module.

5. Can a blown fuse cause the B3472 code on a Buick?

Yes, a blown fuse related to the window circuit can cause insufficient power, leading to this code.

6. Is it safe to drive with the B3472 code on my Buick?

Yes, itâ€™s safe to drive, but the affected window may not operate properly, which could be inconvenient or a safety concern in some situations.

7. How do I fix the B3472 code on a Buick?

Repairs may include replacing the window motor, repairing damaged wiring or connectors, or reprogramming or replacing the door module.

8. Will disconnecting the battery clear the B3472 code on a Buick?

Disconnecting the battery may temporarily clear the code, but if the underlying issue isnâ€™t fixed, the code will return.

9. How much does it cost to fix the B3472 code on a Buick?

Repair costs vary depending on the cause but can range from $100-$400 for parts and labor, depending on whether the motor, wiring, or module needs attention.

10. Can I fix the B3472 code on my Buick myself?

If you have basic automotive electrical knowledge, you may be able to inspect wiring, replace a fuse, or install a new window motor. However, complex issues may require a professional.