B2985 Mercury Code - Deployable Steering Column Circuit Short To Battery
Quick Answer
The B2985 diagnostic trouble code for Mercury vehicles indicates a deployable steering column circuit short to battery. Common causes include Damaged wiring in the steering column system, Faulty steering column control module, Malfunctioning deployable steering column mechanism. 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
- B2985 Mercury indicates Deployable Steering Column Circuit Short To Battery.
- Common causes
- Common causes include Damaged wiring in the steering column system, Faulty steering column control module, Malfunctioning deployable steering column mechanism.
- 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 B2985 Mercury Description
The B2985 diagnostic trouble code for Mercury vehicles indicates a deployable steering column circuit short to battery. This means that there is an electrical issue within the steering column system that is causing a short circuit to the vehicle's battery. The deployable steering column is a safety feature that is designed to collapse in the event of a front-end collision, reducing the risk of injury to the driver. When this circuit is shorted to the battery, it can compromise the functionality of the steering column and potentially impact the vehicle's overall safety.
Common Causes of B2985 Mercury
- Damaged wiring in the steering column system.
- Faulty steering column control module.
- Malfunctioning deployable steering column mechanism.
- Corrosion or loose connections in the electrical system.
- Impact damage to the steering column from a previous collision.
Symptoms of B2985 Mercury
- Illumination of the airbag warning light on the dashboard.
- Deployable steering column not deploying properly during a collision test.
- Loss of power steering assistance.
- Intermittent loss of steering wheel controls.
- Battery draining quickly due to the short circuit.
How to Fix B2985 Mercury
- Begin by conducting a thorough inspection of the steering column system to identify the source of the short circuit.
- Repair or replace any damaged wiring or connectors in the steering column.
- Test the steering column control module for proper functionality and replace if necessary.
- Inspect the deployable steering column mechanism for any faults and repair as needed.
- Clear the diagnostic trouble code from the vehicle's system and perform a test drive to ensure that the issue has been resolved.
Cost to Fix B2985 Mercury
The typical repair costs for addressing a deployable steering column circuit short to battery code like B2985 on a Mercury vehicle can range from $200 to $500, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate.
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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.
Frequently Asked Questions about B2985 Mercury Code
1. What does the OBDII code B2985 mean on a Mercury vehicle?
B2985 indicates a "Deployable Steering Column Circuit Short To Battery," meaning there is an electrical short in the system controlling the deployable steering column.
2. What are the symptoms of code B2985 in a Mercury?
Common symptoms include an illuminated airbag warning light, issues with steering column adjustment, and potential failure of the deployable steering column system.
3. What causes the B2985 code on a Mercury?
The code is typically caused by damaged wiring, a short to the battery in the steering column circuit, a faulty deployable steering column module, or a defective airbag control module.
4. Is it safe to drive a Mercury with the B2985 code?
It is not recommended to drive with this code active, as it may indicate a malfunction in the safety systems, potentially affecting airbag deployment or steering column operation during a collision.
5. How is the B2985 code diagnosed on a Mercury?
A technician will use a scan tool to confirm the code, then inspect the wiring, connectors, and modules associated with the deployable steering column circuit for shorts, damage, or corrosion.
6. Can I fix the B2985 code on my Mercury myself?
If you have experience with electrical systems, you can check for damaged wiring or corroded connectors. However, more complex repairs, like module replacement, should be done by a professional.
7. How much does it cost to repair the B2985 code in a Mercury?
Repair costs vary depending on the issue, with wiring repairs typically costing $100–$300, while module replacement can range from $500–$1,000.
8. Can clearing the B2985 code solve the problem?
Clearing the code may turn off the warning light temporarily, but the underlying problem must be fixed to prevent the code from returning.
9. Does the B2985 code affect airbag functionality in a Mercury?
Yes, this code may impact the airbag system, as the deployable steering column is part of the vehicle's safety features.
10. What tools are needed to diagnose the B2985 code?
A scan tool capable of reading Mercury-specific codes, a multimeter for checking electrical circuits, and basic hand tools for inspecting wiring and connectors are typically required.
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