AutoCodes – GMC – B3472 GMC

B3472 GMC 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 GMC 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 532

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

What does this mean?

What are the Possible Causes of the DTC B3472 GMC?

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 GMC?

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 GMC 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 GMC Code

1. What are the common symptoms of OBDII code B3472 GMC?

- The common symptoms include the right front window being unable to express up or down, or experiencing slow or erratic movement.

2. What are the possible causes of OBDII code B3472 GMC?

- Possible causes may include damaged wiring or connectors in the right front window circuit, a faulty window motor, or a malfunctioning window switch.

3. How can I diagnose the root cause of OBDII code B3472 GMC?

- A thorough inspection of the wiring, connectors, window motor, and window switch is recommended. Using a multimeter to test for continuity and voltage can help pinpoint the issue.

4. Can a DIY enthusiast repair OBDII code B3472 GMC?

- Depending on the exact cause, DIY repair may be possible for those with experience in automotive electrical systems. However, it is recommended to consult a professional if unsure.

5. Are there any simple troubleshooting steps for OBDII code B3472 GMC?

- Checking the fuse related to the right front window, ensuring the window switch is functioning correctly, and inspecting the wiring for visible damage are good initial steps.

6. Is it safe to drive with OBDII code B3472 GMC triggered?

- It is generally safe to drive with this code, but the right front window may not operate properly. It is advisable to address the issue promptly to avoid inconvenience.

7. Can extreme weather conditions contribute to OBDII code B3472 GMC?

- Yes, extreme temperatures or moisture can potentially cause electrical issues in the right front window circuit, leading to the triggering of this code.

8. How can I reset OBDII code B3472 GMC after making repairs?

- After repairing the issue causing the code, the code can be reset using an OBDII scanner or by disconnecting the car's battery for a few minutes.

9. Are there any recalls or technical service bulletins related to OBDII code B3472 GMC?

- Checking with the vehicle manufacturer or authorized service centers for any recalls or technical service bulletins specific to this OBDII code is recommended.

10. What should I do if OBDII code B3472 GMC persists after attempted repairs?

- If the code reappears after attempted repairs, it may indicate an underlying issue that requires further diagnosis by a professional mechanic to resolve effectively.