AutoCodes – GMC – B2202 GMC

B2202 GMC Code - Left 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 Left Window Up Switch, Left Window Up Switch harness is open or shorted, Left 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: B2202 GMC indicates Left Window Up Switch Fault.
Common causes: Common causes include Faulty Left Window Up Switch, Left Window Up Switch harness is open or shorted, Left 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 600

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 Oct 10, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B2202 GMC 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 B2202 GMC - Left Window Up Switch Fault - AutoCodes.com — B2202 GMC Code - Left Window Up Switch Fault

What does this mean?

What are the Possible Causes of the DTC B2202 GMC?

Faulty Left Window Up Switch
Left Window Up Switch harness is open or shorted
Left Window Up Switch circuit poor electrical connection
Faulty Driver Door Module (DDM)

How to Fix the DTC B2202 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 B2202 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.

Need more information about the B2202 GMC code?

Need more information on how to fix the B2202 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2202 GMC 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 B2202 GMC Code

1. What does the OBDII code B2202 mean on a GMC vehicle?

B2202 indicates a fault with the left window up switch, meaning the switch may not be functioning correctly or there's an issue in the associated circuit.

2. What are common symptoms of the B2202 code in a GMC vehicle?

Symptoms include the left window not rolling up, intermittent window operation, or no response when the switch is pressed.

3. What causes the B2202 Left Window Up Switch Fault?

Possible causes include a faulty window up switch, damaged wiring or connections, or a malfunctioning window motor.

4. Can a blown fuse trigger the B2202 code?

A blown fuse is unlikely to directly trigger this code but can cause window-related issues that may lead to similar symptoms.

5. How do you diagnose the B2202 code on a GMC vehicle?

Diagnosis involves inspecting the window switch, checking the wiring and connectors for damage or corrosion, and testing the window motor for proper operation.

6. Can the B2202 code cause other issues in the vehicle?

Generally, no. This code specifically relates to the left window up switch and won't directly affect other systems.

7. How do you fix the B2202 Left Window Up Switch Fault?

Repairs may include replacing the faulty window switch, repairing or replacing damaged wiring, or replacing the window motor if it's defective.

8. Is it safe to drive with the B2202 code active?

Yes, it's safe to drive, but you may not be able to roll up the left window, which could lead to security and weather-related concerns.

9. How much does it cost to fix the B2202 code?

The repair cost depends on the specific issue but typically ranges from $50 to $300, depending on whether the switch, wiring, or motor needs replacement.

10. Can resetting the code fix the B2202 issue?

Clearing the code will not fix the underlying issue. The fault must be properly diagnosed and repaired to prevent the code from returning.