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U112C Dodge Code - Lost Communication With Transfer Case Switch Bank Module

Quick Answer

The U112C diagnostic trouble code for Dodge vehicles indicates that there is a communication issue with the Transfer Case Switch Bank Module. Common causes include Faulty Transfer Case Switch Bank Module, Wiring or connection issues between the ECM and transfer case module, Corrosion or damage to electrical connectors. 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
U112C Dodge indicates Lost Communication With Transfer Case Switch Bank Module.
Common causes
Common causes include Faulty Transfer Case Switch Bank Module, Wiring or connection issues between the ECM and transfer case module, Corrosion or damage to electrical connectors.
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 U112C Dodge Description

The U112C diagnostic trouble code for Dodge vehicles indicates that there is a communication issue with the Transfer Case Switch Bank Module. This module is responsible for controlling the transfer case in 4-wheel drive vehicles, allowing the driver to switch between 2-wheel drive, 4-wheel drive, and other modes as necessary. When communication is lost with this module, it can lead to a variety of issues that affect the vehicle's drivability and overall performance.

OBDII Code U112C Dodge - Lost Communication With Transfer Case Switch Bank Module
U112C Dodge Code - Lost Communication With Transfer Case Switch Bank Module

Common Causes of U112C Dodge

  1. Faulty Transfer Case Switch Bank Module
  2. Wiring or connection issues between the ECM and transfer case module
  3. Corrosion or damage to electrical connectors
  4. Software issues or programming errors
  5. Physical damage to the transfer case module due to water or debris intrusion

Symptoms of U112C Dodge

  1. Inability to shift between drive modes (2WD, 4WD, etc.)
  2. Dashboard warning lights related to the 4-wheel drive system
  3. Reduced acceleration or power
  4. Unusual noises coming from the transfer case area
  5. Vehicle getting stuck in a specific drive mode

How to Fix U112C Dodge

  1. Perform a thorough inspection of the wiring and connectors between the ECM and transfer case module.
  2. Check for any visible signs of damage or corrosion and repair or replace as needed.
  3. Use a diagnostic scanner to communicate with the transfer case module and identify any error codes or communication issues.
  4. If necessary, replace the Transfer Case Switch Bank Module with a new one and program it to communicate with the ECM.
  5. Clear the error codes and perform a test drive to ensure that the issue has been resolved.

Cost to Fix U112C Dodge

The cost of repairing a U112C code for a Dodge vehicle can vary depending on the specific model and year. In general, the cost of a new Transfer Case Switch Bank Module can range from $200 to $500, not including labor costs. The total repair bill, including parts and labor, can amount to $300 to $800 on average. It is recommended to consult with a local auto repair shop or dealership to get a more accurate estimate based on your vehicle's specific requirements. Additionally, keep in mind that diagnosis time and labor rates can vary depending on the location and the shop you choose for repairs.

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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 U112C Dodge Code

1. What are common symptoms of OBDII code U112C in a Dodge vehicle?

- Common symptoms include loss of functionality in the transfer case system, difficulty shifting gears, and illuminated warning lights on the dashboard.

2. What causes the OBDII code U112C "Lost Communication With Transfer Case Switch Bank Module" in Dodge vehicles?

- The code U112C is typically triggered by a communication failure between the transfer case switch bank module and the vehicle's main communication network.

3. How can I diagnose the OBDII code U112C in my Dodge for "Lost Communication With Transfer Case Switch Bank Module"?

- Diagnosis involves checking the wiring connections, inspecting the transfer case switch bank module, and using a diagnostic scanner to communicate with the module.

4. What are the possible repair options for resolving OBDII code U112C in a Dodge vehicle?

- Repair options may include repairing or replacing damaged wiring, resetting the module, updating software, or replacing the transfer case switch bank module.

5. Can I continue driving my Dodge with the OBDII code U112C present?

- It is not recommended to continue driving with the code U112C present, as it may lead to further damage to the transfer case system and compromise vehicle safety.

6. Is it safe to clear the OBDII code U112C in my Dodge without addressing the underlying issue?

- Clearing the code without addressing the underlying issue may temporarily remove the warning lights, but the problem will likely reoccur, leading to potential safety risks.

7. How much does it typically cost to repair the OBDII code U112C in a Dodge vehicle?

- Repair costs for the U112C code can vary depending on the extent of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Are there any preventive maintenance tips to avoid encountering the OBDII code U112C in a Dodge?

- Regularly checking and maintaining the transfer case system, inspecting wiring connections, and addressing any warning lights promptly can help prevent issues leading to the U112C code.

9. Can a DIY enthusiast with basic automotive knowledge repair the OBDII code U112C in a Dodge themselves?

- While some DIY enthusiasts may be able to diagnose and repair simple wiring issues related to the U112C code, it is recommended to consult with a professional for proper diagnosis and repair.

10. Does the OBDII code U112C affect the drivability of a Dodge vehicle?

- The U112C code can affect the drivability of a Dodge vehicle by impacting the transfer case system's functionality, potentially leading to difficulties in shifting gears and overall performance issues.

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