AutoCodes – Cadillac – B2222 Cadillac

B2222 Cadillac 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 Cadillac 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 498

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 Cadillac 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 Cadillac - Left Mirror Select Switch Fault - AutoCodes.com — B2222 Cadillac Code - Left Mirror Select Switch Fault

What does this mean?

What are the Possible Causes of the DTC B2222 Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac Code

1. What does the OBDII code B2222 mean on a Cadillac?

B2222 indicates a "Left Mirror Select Switch Fault," meaning there is an issue with the electrical circuit or functionality of the switch used to adjust the driverâ€™s side mirror.

2. What are common symptoms of the B2222 code on a Cadillac?

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

3. What causes the B2222 code to appear?

The code is commonly caused by a faulty left mirror select switch, damaged wiring, poor electrical connections, or a malfunctioning mirror motor.

4. How can I diagnose the B2222 code on my Cadillac?

Diagnose the code by inspecting the left mirror select switch, checking for damaged wires or loose connections, and testing the switch and motor with a multimeter to ensure proper voltage and continuity.

5. Can I still drive my Cadillac with a B2222 code?

Yes, the B2222 code does not affect drivability, but it may prevent you from adjusting the left mirror, which could impact visibility and safety.

6. How do I fix the B2222 code on my Cadillac?

Repairs may include replacing the left mirror select switch, repairing damaged wiring, or cleaning and securing any loose electrical connections.

7. How much does it cost to repair the B2222 code on a Cadillac?

Repair costs can vary depending on the issue, but replacing the mirror switch typically costs between $50 and $150 for parts, plus labor if done by a mechanic.

8. Can a blown fuse cause the B2222 code?

While unlikely, a blown fuse in the mirror adjustment circuit could cause the issue. Check the fuse box and replace any blown fuses if necessary.

9. Do I need to reprogram anything after fixing the B2222 code?

In most cases, reprogramming is not needed. However, after repairs, clear the code with an OBDII scanner and test the mirror functionality to ensure the issue is resolved.

10. What tools do I need to troubleshoot the B2222 code?

You may need an OBDII scanner, a multimeter for testing electrical circuits, and basic hand tools to access and inspect the switch and wiring.