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U0168 Jeep Code - Lost Communication With Vehicle Security Control Module

Quick Answer

The U0168 code in a Jeep indicates that there has been a communication failure with the Vehicle Security Control Module (VSCM). Common causes include Faulty wiring or connections between the VSCM and other modules, A malfunctioning VSCM itself, Electrical interference or a short circuit in the communication network. 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
U0168 Jeep indicates Lost Communication With Vehicle Security Control Module.
Common causes
Common causes include Faulty wiring or connections between the VSCM and other modules, A malfunctioning VSCM itself, Electrical interference or a short circuit in the communication network.
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 06, 2024
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Code U0168 Jeep Description

The U0168 code in a Jeep indicates that there has been a communication failure with the Vehicle Security Control Module (VSCM). The VSCM is responsible for managing the vehicle's security systems, such as the alarm and immobilizer. When communication with this module is lost, it can lead to issues with the security features of the vehicle, potentially compromising its safety and theft prevention measures. This can also affect the overall performance and functionality of other vehicle systems that rely on the VSCM for proper operation.

OBDII Code U0168 Jeep - Lost Communication With Vehicle Security Control Module
U0168 Jeep Code - Lost Communication With Vehicle Security Control Module

Common Causes of U0168 Jeep

  1. Faulty wiring or connections between the VSCM and other modules.
  2. A malfunctioning VSCM itself.
  3. Electrical interference or a short circuit in the communication network.
  4. Software or programming issues within the VSCM or related modules.
  5. Water damage or corrosion affecting the VSCM connections.

Symptoms of U0168 Jeep

  1. The alarm system may malfunction or fail to activate.
  2. The vehicle may have trouble starting or experience intermittent starting issues.
  3. The dashboard warning lights related to security features may illuminate.
  4. The central locking system may not work properly.
  5. Loss of communication with other modules in the vehicle.

How to Fix U0168 Jeep

  1. Begin by checking and repairing any damaged wiring or connections related to the VSCM.
  2. Test the VSCM for functionality and replace if necessary.
  3. Clear the diagnostic trouble codes and reprogram the VSCM as needed.
  4. Inspect for any signs of water damage or corrosion, addressing any issues found.
  5. Perform a final system check to ensure proper communication between the VSCM and other modules.

Cost to Fix U0168 Jeep

The cost of repairing a lost communication issue with the Vehicle Security Control Module in a Jeep can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates can vary, so it's recommended to get quotes from local auto repair shops for a more accurate estimate.

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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 U0168 Jeep Code

1. What are the common symptoms of OBDII code U0168 in a Jeep related to the Vehicle Security Control Module?

- Common symptoms include issues with key fob functionality, problems starting the vehicle, and security system malfunctions.

2. What are some possible causes for the U0168 code indicating lost communication with the Vehicle Security Control Module in a Jeep?

- Potential causes include a faulty security control module, wiring issues, loose connections, or a software glitch.

3. How can I diagnose the U0168 code in my Jeep related to the Vehicle Security Control Module?

- Diagnose by checking the wiring connections, inspecting the security control module for damage, and using a diagnostic scanner to retrieve additional fault codes.

4. Can the U0168 code in a Jeep be triggered by a dead or weak car battery?

- Yes, a dead or weak car battery can potentially trigger the U0168 code due to communication disruptions with the Vehicle Security Control Module.

5. What are some repair tips for resolving the U0168 code in a Jeep indicating lost communication with the Vehicle Security Control Module?

- Repair tips include checking and repairing any damaged wiring, ensuring all connections are secure, and resetting the vehicle's security system.

6. Is it safe to continue driving my Jeep when the U0168 code is present?

- It is not recommended to continue driving the vehicle with the U0168 code active, as it may lead to further security system malfunctions or starting issues.

7. Can a software update fix the U0168 code in a Jeep related to the Vehicle Security Control Module?

- In some cases, a software update provided by the manufacturer can resolve communication issues and clear the U0168 code.

8. How much does it typically cost to repair the U0168 code in a Jeep?

- Repair costs for the U0168 code can vary depending on the underlying cause, but they may range from a simple wiring repair to a replacement of the security control module.

9. Will disconnecting the battery reset the U0168 code in a Jeep?

- Disconnecting the battery may temporarily clear the code, but it is not a guaranteed long-term solution if the root cause of the communication issue is not addressed.

10. Can a DIY enthusiast fix the U0168 code issue in a Jeep, or is it best left to a professional mechanic?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to troubleshoot and repair the U0168 code, but complex issues may require the expertise of a professional mechanic.

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