AutoCodes – Chrysler – U112C Chrysler

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

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Body Control Module (BCM) does not receive information from the Transfer Case Switch. Common causes include Faulty Transfer Case Switch, Transfer Case Switch harness is open or shorted, Transfer Case Switch circuit poor electrical connection. 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 Chrysler indicates Lost Communication With Transfer Case Switch Bank Module.
Common causes: Common causes include Faulty Transfer Case Switch, Transfer Case Switch harness is open or shorted, Transfer Case Switch circuit poor electrical connection.
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.

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Code Popularity 582

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U112C Chrysler Description

The Diagnostic Trouble Code (DTC) sets when the Body Control Module (BCM) does not receive information from the Transfer Case Switch.

OBDII Code U112C Chrysler - Lost Communication With Transfer Case Switch Bank Module - AutoCodes.com — U112C Chrysler Code - Lost Communication With Transfer Case Switch Bank Module

What does this mean?

What are the Possible Causes of the DTC U112C Chrysler?

Faulty Transfer Case Switch
Transfer Case Switch harness is open or shorted
Transfer Case Switch circuit poor electrical connection

How to Fix the DTC U112C Chrysler?

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 U112C Chrysler 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.

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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 Chrysler Code

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

- Common symptoms include the inability to shift gears, the Transfer Case Control Module (TCCM) not responding, and the "Service 4WD System" warning message on the dashboard.

2. What can cause the U112C code to trigger in a Chrysler vehicle?

- The U112C code is typically triggered by a communication failure between the TCCM and the main vehicle's computer, often due to a wiring issue, faulty module, or poor connection.

3. How can I diagnose the U112C code in my Chrysler vehicle?

- Diagnosis involves checking the wiring harness connections, inspecting for any visible damage, testing the TCCM for functionality, and using a scan tool to retrieve trouble codes and data from the affected module.

4. What are some repair tips for resolving the U112C code in a Chrysler vehicle?

- Repair tips include repairing any damaged wiring, ensuring proper connections, replacing a faulty TCCM if necessary, and performing a reset procedure to clear the code and reestablish communication.

5. Can I drive my Chrysler vehicle with the U112C code present?

- It is not recommended to drive your vehicle with the U112C code active, as it can lead to potential drivability issues and safety concerns related to the 4WD system.

6. How much does it typically cost to repair the U112C code in a Chrysler vehicle?

- The cost of repairs can vary depending on the extent of the issue, the need for replacement parts, and labor costs, but it may range from $200 to $600 or more at a dealership or repair shop.

7. Is the U112C code specific to Chrysler vehicles only?

- The U112C code is specific to Chrysler vehicles and is related to the communication error with the Transfer Case Switch Bank Module.

8. Can a DIY enthusiast fix the U112C code issue in a Chrysler vehicle?

- While some DIY enthusiasts may have the skills to diagnose and repair wiring or connection issues, resolving the U112C code often requires specialized tools and expertise, so professional assistance may be necessary.

9. How long does it take to repair the U112C code in a Chrysler vehicle?

- The repair time can vary depending on the exact cause of the issue and the availability of parts, but it may take a few hours to a full day for a mechanic to diagnose and fix the U112C code.

10. What happens if the U112C code is not addressed in a Chrysler vehicle?

- If left unaddressed, the U112C code can lead to continued 4WD system malfunctions, potential damage to other components, and may eventually result in the vehicle becoming inoperable.