AutoCodes – Generic – B117A

B117A Code - Latch Motor Circuit Short To Ground

Quick Answer

The Liftgate/Trunk Module (LTM) monitors the Latch Motor. Common causes include Faulty Latch Motor, Latch Motor harness is open or shorted, Latch Motor 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: B117A indicates Latch Motor Circuit Short To Ground.
Common causes: Common causes include Faulty Latch Motor, Latch Motor harness is open or shorted, Latch Motor 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 1,443

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 B117A Description

The Liftgate/Trunk Module (LTM) monitors the Latch Motor. The LTM sets the OBDII code when a continuous memory and on-demand Diagnostic Trouble Code (DTC) that sets when the LTM detects a short to ground on the latch motor circuit(s) for more than 1 second.

OBDII Code B117A - Latch Motor Circuit Short To Ground - AutoCodes.com — B117A Code - Latch Motor Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC B117A?

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

How to Fix the DTC B117A?

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 B117A 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 B117A code?

Need more information on how to fix the B117A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B117A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B117A Ford — Latch Motor Circuit Short To Ground
B117A Lincoln — Latch Motor Circuit Short To Ground
B117A Mercury — Latch Motor Circuit Short To Ground

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 B117A Code

1. What are common symptoms of OBDII code B117A (Latch Motor Circuit Short To Ground)?

- The common symptoms include power door locks not functioning properly, doors not locking/unlocking, and potential issues with the alarm system.

2. What can cause the OBDII code B117A to appear?

- The code B117A may appear due to a short circuit in the latch motor circuit that causes the motor to ground out.

3. How can I diagnose the issue related to the OBDII code B117A?

- Diagnosing the issue typically involves checking the wiring harness around the latch motor for any signs of damage or corrosion and testing the latch motor itself for proper function.

4. Is it safe to continue driving with the OBDII code B117A active?

- While the vehicle may still be operable with this code, it is not recommended to continue driving with malfunctioning door locks as it may pose a security risk.

5. Can I repair the latch motor circuit short to ground issue myself?

- Depending on your skill level and access to tools, you may be able to repair the issue yourself by replacing damaged wiring or the latch motor. However, professional assistance is recommended for accurate diagnosis and repair.

6. Are there any temporary fixes for the latch motor circuit short to ground problem?

- Temporary fixes like manually locking/unlocking doors or disconnecting the latch motor may be possible but may not address the root cause of the issue.

7. Will resetting the OBDII code B117A make the problem go away?

- Resetting the code may temporarily clear the warning light, but if the underlying issue with the latch motor circuit is not addressed, the code is likely to reappear.

8. How much does it cost to repair the latch motor circuit short to ground problem?

- Repair costs can vary depending on the extent of the damage and whether you choose to do the repairs yourself or seek professional help. It's recommended to get a diagnosis and cost estimate from a trusted mechanic.

9. Can a faulty latch motor affect other vehicle systems?

- A faulty latch motor can potentially affect other vehicle systems like the alarm system, central locking system, and in some cases, the electrical system if left unrepaired.

10. Is the latch motor circuit short to ground a common issue in certain vehicle makes and models?

- The latch motor circuit short to ground issue can be more common in certain vehicle makes and models known for electrical system problems, but it can occur in any vehicle with power door locks.