AutoCodesBuick – B2206 Buick

B2206 Buick Code - Right Window Up Switch Fault

Quick Answer

The driver or passenger door switch signal circuits provide inputs to the Driver Door Module (DDM) or Passenger Door Module (PDM) when a window switch is activated to the UP or DOWN position. Common causes include Faulty Right Window Up Switch, Right Window Up Switch harness is open or shorted, Right Window Up 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
B2206 Buick indicates Right Window Up Switch Fault.
Common causes
Common causes include Faulty Right Window Up Switch, Right Window Up Switch harness is open or shorted, Right Window Up 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 750
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Oct 10, 2019
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Code B2206 Buick Description

The driver or passenger door switch signal circuits provide inputs to the Driver Door Module (DDM) or Passenger Door Module (PDM) when a window switch is activated to the UP or DOWN position. These inputs allow the door module to detect a window UP or DOWN request. The door modules provide power and ground to the window switches. When a window switch is activated to the UP or DOWN position, ground is supplied through the window switch to the signal circuit, which is pulled low. When the door module detects low voltage on the signal circuit, it will command the window in the UP or DOWN direction. When the switch is released, the command ceases. The door modules monitor the signal circuits to determine how long the ground has been applied. If the door module detects that a ground is applied for greater than 20 seconds, a Diagnostic Trouble Code (DTC) is set.
OBDII Code B2206 Buick - Right Window Up Switch Fault - AutoCodes.com
B2206 Buick Code - Right Window Up Switch Fault

What are the Possible Causes of the DTC B2206 Buick?

  • Faulty Right Window Up Switch
  • Right Window Up Switch harness is open or shorted
  • Right Window Up Switch circuit poor electrical connection
  • Faulty Passenger Door Module (PDM)

How to Fix the DTC B2206 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 B2206 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 B2206 Buick Code

1. What does the OBDII code B2206 mean on a Buick?

Code B2206 indicates a fault in the right window up switch circuit, often caused by issues like a malfunctioning switch or wiring problems.

2. What are the common symptoms of the B2206 code?

Symptoms include the right window not rolling up, intermittent operation of the window, or no response when pressing the window up switch.

3. What causes the B2206 Right Window Up Switch Fault?

Common causes include a faulty window switch, damaged or corroded wiring, a poor connection, or an issue with the window motor.

4. Can a blown fuse cause the B2206 code?

Yes, a blown fuse in the power window circuit can disrupt functionality and trigger this code, though it’s not the most common cause.

5. How do I diagnose the B2206 code on my Buick?

Start by inspecting the right window switch, checking for visible damage, loose connections, or faulty wiring. Use a multimeter to test for proper voltage and continuity.

6. Can I still drive with the B2206 code active?

Yes, you can drive with this code active, but the right window may not function properly, which could be inconvenient or a safety concern in certain conditions.

7. How do I fix the B2206 Right Window Up Switch Fault?

Repairs may involve replacing the faulty window switch, repairing damaged wiring, cleaning corroded connections, or replacing the window motor if necessary.

8. How much does it cost to fix the B2206 code on a Buick?

The cost depends on the root cause. Replacing a window switch typically costs $50-$150 for parts, while labor costs could range from $50-$100.

9. Can I reset the B2206 code without fixing the issue?

Clearing the code with a scanner may temporarily turn off the warning, but the code will likely return if the underlying problem isn’t resolved.

10. Does the B2206 code affect other windows or systems?

No, this code specifically pertains to the right window up switch and typically doesn’t affect other windows or vehicle systems.

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