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Engine-Codes – Generic – B1168

B1168 Code - Left Power Running Board Motor Circuit Short To Ground

Quick Answer

The diagnostic trouble code B1168 indicates that there is a short to ground in the circuit for the left power running board motor. Common causes include Damaged wiring or connectors in the power running board motor circuit, Corrosion or moisture intrusion in the circuit, Faulty power running board motor. 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
B1168 indicates Left Power Running Board Motor Circuit Short To Ground.
Common causes
Common causes include Damaged wiring or connectors in the power running board motor circuit, Corrosion or moisture intrusion in the circuit, Faulty power running board motor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code B1168 Description

The diagnostic trouble code B1168 indicates that there is a short to ground in the circuit for the left power running board motor. Power running boards are a convenient feature found on many modern vehicles, allowing for easier access in and out of the vehicle by extending and retracting automatically when the door is opened or closed. The motor circuit is responsible for controlling the movement of the running board, and a short to ground in this circuit can prevent the running board from functioning properly.

OBDII Code B1168 - Left Power Running Board Motor Circuit Short To Ground
B1168 Code - Left Power Running Board Motor Circuit Short To Ground

Common Causes of B1168

  1. Damaged wiring or connectors in the power running board motor circuit.
  2. Corrosion or moisture intrusion in the circuit.
  3. Faulty power running board motor.
  4. Short circuit caused by a damaged component in the circuit.
  5. Electrical issues such as a blown fuse or relay malfunction.

Symptoms of B1168

  1. Power running board fails to extend or retract.
  2. Running board gets stuck in the extended or retracted position.
  3. Unusual noises or vibrations coming from the running board motor.
  4. Warning light illuminated on the dashboard indicating a fault with the power running board.

How to Fix B1168

  1. Begin by inspecting the wiring and connectors in the power running board motor circuit for any visible damage or corrosion. Repair or replace any damaged components as necessary.
  2. Check the power running board motor for proper operation and replace it if it is found to be faulty.
  3. Test the fuse and relay associated with the power running board motor circuit and replace them if they are defective.
  4. Clear the diagnostic trouble code from the vehicle's computer using a scan tool after completing the repairs.
  5. Test the power running board to ensure that it extends and retracts smoothly without any issues.

Cost to Fix B1168

The typical repair costs for addressing a left power running board motor circuit short to ground can vary depending on the specific vehicle make and model, as well as the extent of the damage. On average, repairing this issue can range from $200 to $500, including parts and labor. It is important to note that diagnosis time and labor rates can vary, so it is advisable to consult with a trusted auto repair shop for a more precise estimate.

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Code B1168 Information for Specific Makes

  • B1168 Acura — Gauge Control Module Lost Communication With PCM
  • B1168 Ford — Left Power Running Board Motor Circuit Short To Ground
  • B1168 Honda — Gauge Control Module Lost Communication With PCM
  • B1168 Lincoln — Left Power Running Board Motor Circuit Short To Ground
  • B1168 Mercury — Left Power Running Board 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 B1168 Code

1. What are the common symptoms of OBDII code B1168 (Left Power Running Board Motor Circuit Short To Ground)?

The common symptoms include the power running board on the left side not deploying or retracting properly, a warning light on the dashboard, and a potential loss of functionality of the running board.

2. What are some possible causes of OBDII code B1168?

Possible causes of B1168 include damaged wiring in the power running board motor circuit, a faulty motor, a short to ground in the circuit, or a malfunctioning control module.

3. How can I diagnose the issue related to OBDII code B1168?

A diagnostic scan tool can help retrieve the code and provide more information. Additionally, visually inspecting the wiring, connectors, and fuses related to the power running board system can help pinpoint the issue.

4. What are the repair options for OBDII code B1168?

Repair options may include repairing or replacing damaged wiring, replacing the power running board motor if faulty, fixing any short circuits, or replacing the control module if necessary.

5. Can I still drive my vehicle with OBDII code B1168 present?

It is generally safe to drive the vehicle with this code, but it's important to address the issue promptly to ensure the proper functioning of the power running board system.

6. How much does it typically cost to repair OBDII code B1168?

The cost of repair can vary depending on the specific cause of the issue, the extent of the damage, and whether any parts need to be replaced. It's recommended to consult with a professional mechanic for an accurate estimate.

7. Are there any preventive measures to avoid OBDII code B1168 in the future?

Regularly inspecting the power running board system, ensuring proper maintenance, and addressing any issues promptly can help prevent the occurrence of OBDII code B1168.

8. Can a DIY enthusiast fix OBDII code B1168 at home?

Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address the issue themselves by following repair guides or tutorials. However, it's essential to exercise caution when working on electrical components.

9. Will resetting the OBDII code B1168 make it go away permanently?

Resetting the code may clear it temporarily, but if the underlying issue is not addressed, the code is likely to reappear. It's crucial to diagnose and repair the root cause to prevent the code from coming back.

10. Is OBDII code B1168 specific to certain vehicle makes and models?

While B1168 is a standardized OBDII code, the specific application and interpretation of the code may vary across different vehicle makes and models. It's recommended to consult the vehicle's manual or a professional mechanic for precise information.

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