AutoCodes – Mercury – B2984 Mercury

B2984 Mercury Code - Deployable Steering Column Circuit Open

Quick Answer

As part of the Supplemental Restraint System (SRS), the vehicle is equipped with a deployable steering column. Common causes include Faulty Steering Column, Steering Column harness is open or shorted, Steering Column 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: B2984 Mercury indicates Deployable Steering Column Circuit Open.
Common causes: Common causes include Faulty Steering Column, Steering Column harness is open or shorted, Steering Column 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 957

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 Feb 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2984 Mercury Description

As part of the Supplemental Restraint System (SRS), the vehicle is equipped with a deployable steering column. The Restraints Control Module (RCM) will deploy (collapse) the steering column during a frontal collision when seat position information and other parameters reach predetermined limits.
The RCM checks the deployable steering column circuits for faults. If the RCM detects an open circuit, it will store the Diagnostic Trouble Code (DTC) B2984 in memory and illuminate the air bag indicator.

OBDII Code B2984 Mercury - Deployable Steering Column Circuit Open - AutoCodes.com — B2984 Mercury Code - Deployable Steering Column Circuit Open

What does this mean?

What are the Possible Causes of the DTC B2984 Mercury?

Faulty Steering Column
Steering Column harness is open or shorted
Steering Column circuit poor electrical connection
Faulty Restraints Control Module (RCM)

How to Fix the DTC B2984 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 B2984 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 B2984 Mercury code?

Need more information on how to fix the B2984 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2984 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 B2984 Mercury Code

1. What are the common symptoms of OBDII code B2984 (Deployable Steering Column Circuit Open) in a Mercury?

The common symptoms include the airbag warning light illuminating on the dashboard and potential loss of functionality in the deployable steering column feature.

2. What are the possible causes of OBDII code B2984 in a Mercury?

The code B2984 typically indicates an open circuit in the deployable steering column system, which can be caused by damaged wiring, faulty connectors, or a malfunctioning steering column module.

3. How can I diagnose OBDII code B2984 on my Mercury?

To diagnose code B2984, it is recommended to use a diagnostic scanner to retrieve the specific fault code, inspect the wiring and connectors related to the deployable steering column system, and perform continuity tests to identify the open circuit.

4. Can I still drive my Mercury with OBDII code B2984 present?

It is not recommended to drive the vehicle with an active airbag-related fault code like B2984, as it may compromise the safety features of the deployable steering column system. It's advisable to address the issue promptly.

5. Is it safe to repair OBDII code B2984 in my Mercury on my own?

Repairing OBDII code B2984 may involve working with the vehicle's airbag system, which requires caution and expertise. It is recommended to seek professional assistance or consult the vehicle's service manual before attempting any repairs.

6. How much does it typically cost to repair OBDII code B2984 in a Mercury?

The cost of repairing OBDII code B2984 can vary depending on the underlying cause of the issue, the extent of the damage, and the labor rates in your area. It's advisable to obtain quotes from reputable repair shops for an accurate estimate.

7. Can OBDII code B2984 in a Mercury be reset without fixing the underlying issue?

Resetting the fault code without addressing the underlying issue, such as an open circuit in the deployable steering column system, may temporarily clear the warning light but will not resolve the problem. It is essential to fix the root cause of the code.

8. How long does it typically take to repair OBDII code B2984 in a Mercury?

The repair time for OBDII code B2984 can vary depending on the complexity of the issue, the availability of parts, and the expertise of the technician. In some cases, it may be resolved within a few hours, while more extensive repairs could take longer.

9. Are there any preventive measures to avoid OBDII code B2984 in a Mercury?

Regular vehicle maintenance, including checking the wiring and connectors related to the deployable steering column system, can help prevent issues that may trigger OBDII code B2984. Additionally, avoiding physical damage to the steering column can also help prevent this fault.

10. Will OBDII code B2984 cause my Mercury to fail an emissions test?

OBDII code B2984 is not directly related to emissions control systems, so it typically will not cause your Mercury to fail an emissions test. However, it is still important to address the issue promptly for the proper functioning of the vehicle's safety features.