AutoCodes – Lincoln – B229A Lincoln

B229A Lincoln Code - Occupant Classification System Contamination

Quick Answer

The Occupant Classification Sensor (OCS) system is used to classify the front passenger seat occupant in the event of a deployable impact. Common causes include A foreign object within an occupant classification sensor rail, Faulty Occupant Classification Sensor (OCS) System Component. 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: B229A Lincoln indicates Occupant Classification System Contamination.
Common causes: Common causes include A foreign object within an occupant classification sensor rail, Faulty Occupant Classification Sensor (OCS) System Component.
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 544

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 31, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B229A Lincoln Description

The Occupant Classification Sensor (OCS) system is used to classify the front passenger seat occupant in the event of a deployable impact.
The Occupant Classification Sensor Module (OCSM) monitors the 2 OCS rails (weight sensors) and circuity for faults. If the OCSM detects an object within the OCS rails, it will store DTC B229A in memory and send a message to the restraints control module (RCM) which sends a message to the instrument cluster (IC) module to illuminates the air bag indicator.

OBDII Code B229A Lincoln - Occupant Classification System Contamination - AutoCodes.com — B229A Lincoln Code - Occupant Classification System Contamination

What does this mean?

What are the Possible Causes of the DTC B229A Lincoln?

A foreign object within an occupant classification sensor rail
Faulty Occupant Classification Sensor (OCS) System Component

How to Fix the DTC B229A Lincoln?

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 B229A Lincoln 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 B229A Lincoln code?

Need more information on how to fix the B229A Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B229A Lincoln code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B229A Lincoln Code

1. What are common symptoms of OBDII code B229A in a Lincoln related to the Occupant Classification System Contamination?

The common symptoms include the airbag warning light staying illuminated, erratic behavior of the airbag system, and potential issues with the passenger airbag deployment.

2. What causes the OBDII code B229A in a Lincoln related to the Occupant Classification System Contamination?

The code B229A is typically triggered by contamination affecting the Occupant Classification System, such as spilled liquids, debris, or foreign objects interfering with the system's sensors.

3. How can I diagnose the OBDII code B229A in a Lincoln related to the Occupant Classification System Contamination?

Diagnosing the code usually involves inspecting the Occupant Classification System components for any signs of contamination, cleaning the sensors, and resetting the system to see if the code reoccurs.

4. Can I repair the OBDII code B229A in a Lincoln related to the Occupant Classification System Contamination myself?

While cleaning the sensors and removing any contamination can sometimes resolve the issue, it is recommended to seek professional assistance for a thorough diagnosis and repair to ensure the airbag system's proper functionality.

5. Is it safe to drive a Lincoln with the OBDII code B229A related to the Occupant Classification System Contamination?

It is not advisable to drive the vehicle with unresolved airbag system issues, as the system may not deploy properly in case of an accident. Promptly addressing the code B229A is crucial for passenger safety.

6. How much does it typically cost to repair the OBDII code B229A in a Lincoln related to the Occupant Classification System Contamination?

The cost of repairing the code B229A can vary depending on the extent of the contamination and any potential sensor damage. It is advisable to consult a professional technician for an accurate estimate.

7. Are there any preventive measures to avoid triggering the OBDII code B229A in a Lincoln related to the Occupant Classification System Contamination?

To prevent contamination issues, it is recommended to avoid spilling liquids near the Occupant Classification System, regularly clean the interior of the vehicle, and be mindful of any debris that could interfere with the system's sensors.

8. Can resetting the OBDII system clear the B229A code related to the Occupant Classification System Contamination in a Lincoln?

Resetting the OBDII system may temporarily clear the code, but if the root cause of the contamination is not addressed, the code is likely to reappear. Proper diagnosis and cleaning of the system are necessary for a lasting solution.

9. Will the OBDII code B229A related to the Occupant Classification System Contamination affect the vehicle's overall performance?

The code B229A itself may not directly impact the vehicle's performance, but it signifies a potential issue with the airbag system, which is a critical safety component. Promptly addressing the code is essential for maintaining the system's functionality.

10. How long does it take to repair the OBDII code B229A in a Lincoln related to the Occupant Classification System Contamination?

The repair time for the code B229A can vary depending on the extent of contamination and any necessary sensor cleaning or replacement. A professional technician can provide a more accurate timeframe after diagnosis.