AutoCodes – Buick – B2222 Buick

B2222 Buick Code - Left Mirror Select Switch Fault

Quick Answer

The driver door switch signal circuits provide inputs to the Driver Door Module (DDM) when a mirror select switch is activated. Common causes include Faulty Left Mirror Select Switch, Left Mirror Select Switch harness is open or shorted, Left Mirror Select 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: B2222 Buick indicates Left Mirror Select Switch Fault.
Common causes: Common causes include Faulty Left Mirror Select Switch, Left Mirror Select Switch harness is open or shorted, Left Mirror Select 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 674

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 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2222 Buick Description

The driver door switch signal circuits provide inputs to the Driver Door Module (DDM) when a mirror select switch is activated. These inputs allow the DDM to detect a Left (LH) or Right (RH) mirror request. The DDM provides power and ground to the mirror select switches. When a mirror select switch is activated, ground is supplied through the mirror select switch to the signal circuit, which is pulled low. When the DDM detects low voltage on the signal circuit, it will command the mirror in the direction selected. The DDM controls RH mirror functions by sending mirror control messages to the Passenger Door Module (PDM) on the serial data line and the PDM then commands the RH mirror. The DDM monitors both the LH and RH mirror select 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 B2222 Buick - Left Mirror Select Switch Fault - AutoCodes.com — B2222 Buick Code - Left Mirror Select Switch Fault

What does this mean?

What are the Possible Causes of the DTC B2222 Buick?

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

How to Fix the DTC B2222 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 B2222 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 B2222 Buick Code

1. What are the common symptoms of OBDII code B2222 Buick (Left Mirror Select Switch Fault)?

The common symptoms include the left mirror select switch not functioning properly, inability to adjust the left mirror, or erratic movement of the left mirror.

2. What are the possible causes of OBDII code B2222 Buick?

The code B2222 Buick (Left Mirror Select Switch Fault) is commonly caused by a faulty left mirror select switch, wiring issues, or a defective mirror control module.

3. How can I diagnose the OBDII code B2222 Buick?

Diagnosing the code involves checking the left mirror select switch for proper functionality, inspecting the wiring for any damage, and testing the mirror control module for faults using a diagnostic tool.

4. Can I still drive my Buick with the OBDII code B2222 present?

While it is possible to drive the vehicle with this code, it is recommended to address the issue promptly to ensure proper functioning of the left mirror control system.

5. How can I repair OBDII code B2222 Buick?

Repairing the code typically involves replacing the faulty left mirror select switch, repairing any damaged wiring, or replacing the mirror control module if necessary.

6. Are there any DIY tips for fixing OBDII code B2222 Buick?

If you have experience working with automotive electrical systems, you may try checking the wiring connections and the switch for any obvious issues before considering replacement.

7. Will resetting the OBDII code B2222 Buick make it go away permanently?

Resetting the code may temporarily clear it, but if the underlying issue, such as a faulty switch or wiring problem, is not addressed, the code is likely to reappear.

8. How much does it typically cost to repair OBDII code B2222 Buick at a dealership or mechanic?

The cost of repair can vary depending on the specific issue and labor rates, but it may range from $100 to $300 for parts and labor.

9. Can extreme weather conditions cause OBDII code B2222 Buick to trigger?

Extreme weather conditions, such as excessive heat or moisture, can potentially affect the electrical components involved in the left mirror select switch system and lead to the code being triggered.

10. Is OBDII code B2222 Buick a serious problem that requires immediate attention?

While the code may not cause immediate safety concerns, it is still important to address it in a timely manner to ensure proper functionality of the left mirror control system and maintain overall vehicle performance.