AutoCodes – Chevrolet – B2226 Chevrolet

B2226 Chevrolet Code - Mirror Right Switch Fault

Quick Answer

The driver door switch signal circuits provide inputs to the Driver Door Module (DDM) when the mirror switch is activated. Common causes include Faulty Mirror Right Switch, Mirror Right Switch harness is open or shorted, Mirror Right 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: B2226 Chevrolet indicates Mirror Right Switch Fault.
Common causes: Common causes include Faulty Mirror Right Switch, Mirror Right Switch harness is open or shorted, Mirror Right 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 668

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
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Code B2226 Chevrolet Description

The driver door switch signal circuits provide inputs to the Driver Door Module (DDM) when the mirror switch is activated. These inputs allow the DDM to detect a mirror direction request. The DDM provides both power and ground to the mirror switches. When a mirror switch is activated to the right, left, up or down position, ground is supplied through the mirror switch to the signal circuit, which is pulled low. When the DDM detects low voltage on the signal circuit, it will command the mirror to rotate in the direction selected. The DDM controls passenger mirror functions by sending mirror control messages to the Passenger Door Module (PDM) on the serial data line and the PDM then commands the passenger mirror. The DDM monitors both the driver and passenger mirror switch signal circuits to determine how long a ground has been applied. If the DDM detects that a ground is applied for greater than 20 seconds, a Diagnostic Trouble Code (DTC) is set.

OBDII Code B2226 Chevrolet - Mirror Right Switch Fault - AutoCodes.com — B2226 Chevrolet Code - Mirror Right Switch Fault

What does this mean?

What are the Possible Causes of the DTC B2226 Chevrolet?

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

How to Fix the DTC B2226 Chevrolet?

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 B2226 Chevrolet 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 B2226 Chevrolet Code

1. What are the common symptoms of OBDII code B2226 Chevrolet (Mirror Right Switch Fault)?

The common symptoms include malfunctioning or inoperative functions controlled by the right mirror switch, such as power mirror adjustment and mirror folding.

2. What are the possible causes of OBDII code B2226 Chevrolet?

The code B2226 Chevrolet typically indicates a fault with the right mirror switch, which can be caused by issues such as wiring faults, a faulty switch, or a malfunction in the mirror control module.

3. How can I diagnose the Mirror Right Switch Fault (B2226) in my Chevrolet?

Diagnosing the B2226 code involves inspecting the wiring harness, testing the right mirror switch for continuity and proper operation, and checking the mirror control module for any faults.

4. Can I still drive my Chevrolet with OBDII code B2226 (Mirror Right Switch Fault)?

While it may be possible to drive the vehicle with this code, it is recommended to address the issue promptly to ensure the proper functioning of the right mirror switch and related features.

5. How can I repair OBDII code B2226 Chevrolet at home?

Depending on the root cause of the fault, repairing the B2226 code may involve replacing the right mirror switch, repairing any damaged wiring, or resetting the mirror control module. It is advisable to consult a repair manual or seek professional help if needed.

6. Is the Mirror Right Switch Fault (B2226) a serious issue in a Chevrolet vehicle?

While the B2226 code may not directly affect the drivability of the vehicle, it can impact the convenience and safety features related to the right mirror adjustment. Addressing the issue in a timely manner is recommended.

7. Can a faulty mirror motor cause OBDII code B2226 Chevrolet to appear?

While a faulty mirror motor is not a common cause of the B2226 code, it is possible that issues with the mirror motor or related components could contribute to the malfunction of the right mirror switch.

8. Are there any preventive measures to avoid OBDII code B2226 (Mirror Right Switch Fault) in my Chevrolet?

Regularly inspecting the mirror switch, wiring, and related components for any signs of wear or damage can help prevent issues leading to the B2226 fault code in Chevrolet vehicles.

9. Will resetting the vehicle's computer clear OBDII code B2226 (Mirror Right Switch Fault)?

Resetting the vehicle's computer may temporarily clear the B2226 code, but if the underlying issue with the right mirror switch or related components is not addressed, the code is likely to reappear.

10. How much does it typically cost to repair OBDII code B2226 Chevrolet at a dealership or repair shop?

The cost of repairing the B2226 code can vary depending on the extent of the issue, parts needed for replacement, and labor charges. It is advisable to obtain quotes from different service providers for an accurate estimate.