AutoCodes – Mercury – B0028 Mercury

B0028 Mercury Code - Right Side Airbag Deployment Control

Quick Answer

The Restraints Control Module (RCM) monitors all deployable device and sensor circuits for a signal cross coupled (short) between circuits. Common causes include Faulty Front Right Side Air Bag Module, Front Right Side Air Bag Module harness is open or shorted, Front Right Side Air Bag Module 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: B0028 Mercury indicates Right Side Airbag Deployment Control.
Common causes: Common causes include Faulty Front Right Side Air Bag Module, Front Right Side Air Bag Module harness is open or shorted, Front Right Side Air Bag Module 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 3,741

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0028 Mercury Description

The Restraints Control Module (RCM) monitors all deployable device and sensor circuits for a signal cross coupled (short) between circuits. If the RCM detects a short between the circuits of one device and another device, it will store a DTC for each of the signal cross coupled faults in memory. The RCM sends a message to the Instrument Panel Cluster (IPC) to illuminate the air bag warning indicator. When a normal loop fault is present (one loop is either shorted to battery/ground, open circuit or low resistance), then signal cross coupled diagnostics will not be active. Once the normal loop fault is repaired, then the signal cross coupled diagnostics will resume.

OBDII Code B0028 Mercury - Right Side Airbag Deployment Control - AutoCodes.com — B0028 Mercury Code - Right Side Airbag Deployment Control

What does this mean?

What are the Possible Causes of the DTC B0028 Mercury?

Faulty Front Right Side Air Bag Module
Front Right Side Air Bag Module harness is open or shorted
Front Right Side Air Bag Module circuit poor electrical connection

How to Fix the DTC B0028 Mercury?

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 B0028 Mercury 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 B0028 Mercury code?

Need more information on how to fix the B0028 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0028 Mercury 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 B0028 Mercury Code

1. What are the common symptoms of OBDII code B0028 in a Mercury related to the right side airbag deployment control?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential non-deployment of the right side airbag during a collision.

2. What are the possible causes of OBDII code B0028 in a Mercury for the right side airbag deployment control?

- The code B0028 typically indicates a fault in the right side airbag deployment control circuit, which can be caused by issues such as a faulty airbag sensor, damaged wiring, or a malfunctioning control module.

3. How can I diagnose the OBDII code B0028 in a Mercury associated with the right side airbag deployment control?

- Diagnosing this code often involves using a professional OBDII scanner to retrieve the specific fault codes, followed by inspecting the right side airbag components, wiring, and connections for any visible damage or issues.

4. Can I continue driving my Mercury with OBDII code B0028 related to the right side airbag deployment control?

- It is not recommended to drive the vehicle with this code present, as it indicates a potential issue with the right side airbag system, which may compromise passenger safety in the event of a collision.

5. What are some repair tips for fixing OBDII code B0028 in a Mercury for the right side airbag deployment control?

- Repairing this code may involve addressing the specific cause, such as replacing a faulty airbag sensor, repairing damaged wiring, or reprogramming the airbag control module to resolve the issue.

6. Is it safe to reset the OBDII code B0028 in a Mercury without fixing the underlying issue related to the right side airbag deployment control?

- Resetting the code without addressing the root cause is not recommended, as the underlying issue may persist and potentially compromise the functionality of the right side airbag in the future.

7. How much does it typically cost to repair OBDII code B0028 in a Mercury for the right side airbag deployment control?

- The cost of repairing this code can vary depending on the specific cause and the extent of the repairs needed, but it is advisable to consult a professional mechanic for an accurate diagnosis and cost estimate.

8. Can a DIY enthusiast with automotive experience fix OBDII code B0028 in a Mercury for the right side airbag deployment control?

- While some DIY enthusiasts may have the skills to address certain issues related to this code, working on airbag systems can be complex and potentially dangerous, so it is recommended to seek professional help for this type of repair.

9. Are there any recalls or technical service bulletins related to OBDII code B0028 in Mercury vehicles for the right side airbag deployment control?

- It is advisable to check with the manufacturer or a certified dealership to inquire about any recalls or technical service bulletins related to this specific OBDII code in Mercury vehicles.

10. How can I prevent OBDII code B0028 from recurring in my Mercury for the right side airbag deployment control?

- Regular maintenance and inspections of the airbag system, including checking for any signs of damage or wear, can help prevent the recurrence of OBDII code B0028 related to the right side airbag deployment control in your Mercury.