AutoCodes – Mercury – B1887 Mercury

B1887 Mercury Code - Driver-Side Air Bag Circuit Short To Ground

Quick Answer

The Restraints Control Module (RCM) checks Driver-Side Air Bag Module circuit for shorts to ground by monitoring voltage at RCM harness connector. Common causes include Faulty Driver-Side Air Bag Module, Driver-Side Air Bag Module harness is open or shorted, Driver-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: B1887 Mercury indicates Driver-Side Air Bag Circuit Short To Ground.
Common causes: Common causes include Faulty Driver-Side Air Bag Module, Driver-Side Air Bag Module harness is open or shorted, Driver-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 511

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 Jul 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1887 Mercury Description

The Restraints Control Module (RCM) checks Driver-Side Air Bag Module circuit for shorts to ground by monitoring voltage at RCM harness connector. If RCM detects short to ground on either terminal, it will store Diagnostic Trouble Code (DTC) B1887 in memory and the Air Bag warning light.

OBDII Code B1887 Mercury - Driver-Side Air Bag Circuit Short To Ground - AutoCodes.com — B1887 Mercury Code - Driver-Side Air Bag Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC B1887 Mercury?

Faulty Driver-Side Air Bag Module
Driver-Side Air Bag Module harness is open or shorted
Driver-Side Air Bag Module circuit poor electrical connection
Faulty Restraints Control Module (RCM)

How to Fix the DTC B1887 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 B1887 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 B1887 Mercury code?

Need more information on how to fix the B1887 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1887 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 B1887 Mercury Code

1. What are common symptoms of OBDII code B1887 on a Mercury related to the driver-side airbag circuit?

- Common symptoms include the airbag warning light illuminating on the dashboard, the airbag system being disabled, and potential issues with the airbag deploying in a collision.

2. What are possible causes of OBDII code B1887 on a Mercury indicating a driver-side airbag circuit short to ground?

- Possible causes include damaged wiring or connectors in the driver-side airbag circuit, a faulty clock spring, or a malfunctioning airbag control module.

3. How can I diagnose the driver-side airbag circuit short to ground issue causing OBDII code B1887 on my Mercury?

- Diagnosing this issue typically involves inspecting the wiring and connectors in the driver-side airbag circuit, testing the clock spring for continuity, and checking the airbag control module for faults.

4. Can I repair the driver-side airbag circuit short to ground issue causing OBDII code B1887 on my Mercury myself?

- Repairing this issue may require advanced knowledge and tools. It is recommended to consult a professional mechanic or technician with experience in diagnosing and repairing airbag system faults.

5. Is it safe to drive my Mercury with OBDII code B1887 indicating a driver-side airbag circuit short to ground?

- It is not recommended to drive the vehicle with this fault present, as it may compromise the proper functioning of the driver-side airbag in the event of a collision.

6. How much does it typically cost to repair OBDII code B1887 related to a driver-side airbag circuit short to ground on a Mercury?

- The cost of repair can vary depending on the specific cause of the issue and the labor rates in your area. It is advisable to obtain quotes from different repair shops for an accurate estimate.

7. Can resetting the OBDII system clear the B1887 code related to the driver-side airbag circuit on my Mercury?

- Resetting the OBDII system may temporarily clear the code, but it will likely reappear if the underlying issue causing the driver-side airbag circuit short to ground is not addressed.

8. Will disconnecting the battery reset the driver-side airbag circuit short to ground issue causing OBDII code B1887 on my Mercury?

- Disconnecting the battery may reset the system, but it will not fix the root cause of the problem. It is important to diagnose and repair the issue to ensure the airbag system functions correctly.

9. Are there any safety precautions I should take when working on the driver-side airbag circuit to resolve OBDII code B1887 on my Mercury?

- Safety precautions include disconnecting the battery, waiting for the airbag system to discharge, and handling airbag components with caution to prevent accidental deployment.

10. Can a DIY enthusiast with experience in automotive repairs attempt to fix the driver-side airbag circuit short to ground issue causing OBDII code B1887 on a Mercury?

- While some DIY enthusiasts may have the skills and tools to diagnose and repair this issue, working on the airbag system can be dangerous. It is recommended to seek professional help to ensure the repair is done safely and correctly.