AutoCodes – Mercury – B116D Mercury

B116D Mercury Code - Left Power Running Board Motor Line Open

Quick Answer

During Power Running Board (PRB) deployment, the PRB module supplies power to the PRB motor and ground through the circuit. Common causes include Faulty Power Running Board Motor Assembly, Power Running Board Motor Assembly harness is open or shorted, Power Running Board Motor Assembly circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B116D Mercury indicates Left Power Running Board Motor Line Open.
Common causes: Common causes include Faulty Power Running Board Motor Assembly, Power Running Board Motor Assembly harness is open or shorted, Power Running Board Motor Assembly circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 692

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B116D Mercury Description

During Power Running Board (PRB) deployment, the PRB module supplies power to the PRB motor and ground through the circuit. The PRB module stows the PRB by supplying power to the PRB motor and ground through the circuit. The PRB module provides a regulated 10-volt power supply to the Hall-effect sensor (internal to the PRB motor) through the circuit. The Hall-effect ground is provided by the PRB module through the circuit. The PRB module monitors the PRB Hall-effect signal through the circuit. If the PRB module does not receive any signal from the Hall-effect sensor during operation, the PRB will stop. The PRB module sets this Diagnostic Trouble Code (DTC) when it detects an open in the LH running board motor circuit(s).

OBDII Code B116D Mercury - Left Power Running Board Motor Line Open - AutoCodes.com — B116D Mercury Code - Left Power Running Board Motor Line Open

What does this mean?

What are the Possible Causes of the DTC B116D Mercury?

Faulty Power Running Board Motor Assembly
Power Running Board Motor Assembly harness is open or shorted
Power Running Board Motor Assembly circuit poor electrical connection
Faulty Power Running Board (PRB) Module

How to Fix the DTC B116D 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 B116D 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.

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Need Help with the Code?

Get the B116D Mercury code diagnosed by a professional: Find a repair shop in your area

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 B116D Mercury Code

1. What does the OBDII code B116D mean on a Mercury vehicle?

The code B116D indicates an issue with the left power running board motor circuit, specifically an open line or electrical fault.

2. What are common symptoms of the B116D code?

Symptoms include the left power running board not deploying or retracting, unusual noises from the motor, or the running board being stuck in one position.

3. What causes the B116D code to appear?

Common causes include a damaged or disconnected wiring harness, a faulty power running board motor, or corrosion in the electrical connections.

4. How is the B116D code diagnosed?

A technician will inspect the wiring and connectors for damage or corrosion, test the motor's functionality, and check for continuity in the circuit.

5. Can I still drive my Mercury with the B116D code?

Yes, the vehicle is still drivable, but the left running board may not function properly, which could be inconvenient or hazardous when entering or exiting the vehicle.

6. How do I fix the B116D code on my Mercury?

Repairs may involve replacing the damaged wiring, cleaning or tightening electrical connections, or replacing the left power running board motor if it has failed.

7. How much does it cost to repair the B116D code?

Repair costs vary but typically range from $150 to $500, depending on whether wiring repairs or motor replacement is needed.

8. Can I fix the B116D code myself?

If you have experience with electrical systems, you may be able to inspect the wiring and connectors yourself. However, replacing the motor or more complex repairs may require professional assistance.

9. What tools are needed to troubleshoot the B116D code?

Youâ€™ll need a multimeter to check for continuity, basic hand tools for removing panels, and possibly an OBDII scanner to clear the code after repairs.

10. How can I prevent the B116D code from reoccurring?

Regularly inspect the running board mechanism and electrical connections for damage or corrosion, and avoid exposing the area to excessive dirt or moisture.