AutoCodes – Mercury – B117C Mercury

B117C Mercury Code - Latch Centering Switch Invalid

Quick Answer

The Liftgate/Trunk Module (LTM) monitors the sector gear open switch and sector gear close switch input circuits to determine the sector gear position. Common causes include Faulty Power Liftgate Latch, Power Liftgate Latch harness is open or shorted, Power Liftgate Latch 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: B117C Mercury indicates Latch Centering Switch Invalid.
Common causes: Common causes include Faulty Power Liftgate Latch, Power Liftgate Latch harness is open or shorted, Power Liftgate Latch 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 689

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 B117C Mercury Description

The Liftgate/Trunk Module (LTM) monitors the sector gear open switch and sector gear close switch input circuits to determine the sector gear position. The OBDII sets when the LTM detects the sector gear open/close switch(es) are not in the correct state at the beginning of self-test, or no sector gear switch transition during releasing/cinching.

OBDII Code B117C Mercury - Latch Centering Switch Invalid - AutoCodes.com — B117C Mercury Code - Latch Centering Switch Invalid

What does this mean?

What are the Possible Causes of the DTC B117C Mercury?

Faulty Power Liftgate Latch
Power Liftgate Latch harness is open or shorted
Power Liftgate Latch circuit poor electrical connection
Faulty Liftgate/Trunk Module (LTM)

How to Fix the DTC B117C 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 B117C 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 B117C Mercury code?

Need more information on how to fix the B117C Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B117C 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 B117C Mercury Code

1. What does the OBDII code B117C Mercury mean?

The code B117C for Mercury vehicles refers to the Latch Centering Switch Invalid error.

2. What are common symptoms of the B117C code in a Mercury vehicle?

Common symptoms of the B117C code may include issues with the door latch mechanism, difficulty closing the door properly, or interior lights staying on when the door is closed.

3. What causes the B117C error code in a Mercury vehicle?

The B117C code is typically triggered when there is an issue with the centering switch in the door latch mechanism, such as a faulty switch or misalignment.

4. How can I diagnose the B117C code in my Mercury vehicle?

Diagnosing the B117C code usually involves inspecting the door latch mechanism, checking the centering switch for proper function, and testing the electrical connections related to the switch.

5. Can I repair the B117C code in my Mercury vehicle myself?

Repairing the B117C code may require adjusting or replacing the centering switch in the door latch mechanism. This repair can be done by a skilled DIYer or a professional mechanic.

6. Are there any safety concerns associated with the B117C code in a Mercury vehicle?

While the B117C code itself may not pose immediate safety risks, it is important to address the issue promptly to ensure proper functioning of the door latch mechanism for passenger safety.

7. Will the B117C code cause my Mercury vehicle to fail an emissions test?

The B117C code is not directly related to emissions control, so it is unlikely to cause your Mercury vehicle to fail an emissions test.

8. How much does it typically cost to repair the B117C code in a Mercury vehicle?

The cost of repairing the B117C code in a Mercury vehicle can vary depending on the specific cause of the issue and whether you choose to do the repair yourself or take it to a mechanic.

9. Can the B117C code in a Mercury vehicle cause other electrical problems?

While the B117C code is specifically related to the door latch centering switch, it is possible that underlying electrical issues could cause additional problems in the vehicle's electrical system.

10. Is it safe to continue driving my Mercury vehicle with the B117C error code present?

It is generally not recommended to drive your Mercury vehicle with the B117C code present, as it can affect the proper operation of the door latch mechanism and compromise passenger safety.