AutoCodes – Chevrolet – B2228 Chevrolet

B2228 Chevrolet Code - Mirror Left 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 Left Switch, Mirror Left Switch harness is open or shorted, Mirror Left 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: B2228 Chevrolet indicates Mirror Left Switch Fault.
Common causes: Common causes include Faulty Mirror Left Switch, Mirror Left Switch harness is open or shorted, Mirror Left 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 650

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 B2228 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 B2228 Chevrolet - Mirror Left Switch Fault - AutoCodes.com — B2228 Chevrolet Code - Mirror Left Switch Fault

What does this mean?

What are the Possible Causes of the DTC B2228 Chevrolet?

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

How to Fix the DTC B2228 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 B2228 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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Get the B2228 Chevrolet 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 B2228 Chevrolet Code

1. What does OBDII code B2228 mean on a Chevrolet?

Code B2228 indicates a fault with the left mirror switch, often related to communication or electrical issues in the mirror control system.

2. What are the common symptoms of code B2228 in a Chevrolet?

Symptoms may include the inability to adjust the left side mirror, erratic mirror movement, or the mirror being unresponsive.

3. What causes the B2228 code to appear?

Common causes include a faulty mirror control switch, damaged wiring or connections, or a malfunctioning mirror motor.

4. How can I diagnose the B2228 code in my Chevrolet?

Start by inspecting the left mirror switch and its wiring. Use a multimeter to check for continuity and ensure proper voltage is reaching the switch.

5. Can a faulty left mirror motor trigger code B2228?

Yes, if the motor is not functioning or has shorted, it can lead to this code being stored in the system.

6. Is replacing the left mirror switch always necessary for B2228?

Not always. The issue could be due to wiring problems or poor connections, so these should be inspected before replacing the switch.

7. Can I still drive my Chevrolet with code B2228?

Yes, but the left mirror may not function properly, which can impact visibility and safety.

8. How much does it cost to repair code B2228?

Repair costs vary but typically range from $50 to $200, depending on whether the issue is with the switch, wiring, or mirror motor.

9. Can clearing the code B2228 fix the issue?

Clearing the code without addressing the root cause will likely result in the code returning. The underlying issue needs to be fixed.

10. What tools are needed to fix code B2228 on a Chevrolet?

You may need a multimeter, a scan tool, and basic hand tools to diagnose and repair the issue.

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