AutoCodesBuick – B3822 Buick

B3822 Buick Code - Right Rear Window Up Control Circuit

Quick Answer

The Body Control Module (BCM) grounds the control side of the right rear power window up relay upon receiving a class 2 message from the Driver Door Module (DDM). Common causes include Faulty Right Rear Power Window Switch, Right Rear Power Window Switch harness is open or shorted, Right Rear Power Window 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
B3822 Buick indicates Right Rear Window Up Control Circuit.
Common causes
Common causes include Faulty Right Rear Power Window Switch, Right Rear Power Window Switch harness is open or shorted, Right Rear Power Window 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 455
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 17, 2020
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Code B3822 Buick Description

The Body Control Module (BCM) grounds the control side of the right rear power window up relay upon receiving a class 2 message from the Driver Door Module (DDM). The Diagnostic Trouble Code (DTC) sets when the BCM has grounded the right rear power window up relay control circuit and the control circuit is shorted to battery positive voltage.
OBDII Code B3822 Buick - Right Rear Window Up Control Circuit - AutoCodes.com
B3822 Buick Code - Right Rear Window Up Control Circuit

What are the Possible Causes of the DTC B3822 Buick?

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

How to Fix the DTC B3822 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 B3822 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 B3822 Buick Code

1. What does the OBDII code B3822 mean on a Buick?

B3822 indicates a problem in the right rear window up control circuit, often related to electrical or wiring issues.

2. What are common symptoms of the B3822 code in a Buick?

The right rear window may not roll up, may operate intermittently, or might show no response when the window switch is engaged.

3. What causes the B3822 code to appear in a Buick?

Common causes include a faulty window switch, damaged wiring or connectors, a malfunctioning window motor, or a short in the circuit.

4. Can I still drive my Buick with the B3822 code?

Yes, this code does not affect drivability, but it may cause inconvenience due to limited rear window functionality.

5. How do I troubleshoot the B3822 code on a Buick?

Start by checking the window switch, inspecting the wiring and connectors for damage, and testing the window motor for proper function.

6. How can I fix the B3822 code on a Buick?

Repairs may include replacing a faulty window switch, repairing damaged wiring, cleaning corroded connectors, or replacing the window motor if necessary.

7. How much does it cost to fix the B3822 code in a Buick?

The cost depends on the issue; replacing a window switch may cost $50–$150, while a window motor replacement could cost $200–$400, including labor.

8. Can a blown fuse cause the B3822 code on a Buick?

Yes, a blown fuse in the power window circuit can disrupt the right rear window's operation and trigger the B3822 code.

9. Will resetting the code fix the B3822 issue on a Buick?

Clearing the code without addressing the underlying issue will likely result in the code returning when the problem persists.

10. Do I need professional help to fix the B3822 code on a Buick?

While basic troubleshooting can be done at home, complex electrical issues may require a professional technician for accurate diagnosis and repair.

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