AutoCodesDodge – C140C Dodge

C140C Dodge Code - Transfer Case Motor Performance Circuit High

Quick Answer

The Final Drive Control Module monitors the Transfer Case Motor. Common causes include Faulty Transfer Case Motor, Transfer Case Motor harness is open or shorted, Transfer Case Motor 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
C140C Dodge indicates Transfer Case Motor Performance Circuit High.
Common causes
Common causes include Faulty Transfer Case Motor, Transfer Case Motor harness is open or shorted, Transfer Case Motor 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 2,465
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 27, 2020
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Code C140C Dodge Description

The Final Drive Control Module monitors the Transfer Case Motor. The Final Drive Control Module sets the OBDII code when the Transfer Case Motor is not to factory specifications.
OBDII Code C140C Dodge - Transfer Case Motor Performance Circuit High - AutoCodes.com
C140C Dodge Code - Transfer Case Motor Performance Circuit High

What are the Possible Causes of the DTC C140C Dodge?

  • Faulty Transfer Case Motor
  • Transfer Case Motor harness is open or shorted
  • Transfer Case Motor circuit poor electrical connection
  • Faulty Final Drive Control Module

How to Fix the DTC C140C Dodge?

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 C140C Dodge 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 C140C Dodge Code

1. What does the OBDII code C140C mean on a Dodge vehicle?

The C140C code indicates a "Transfer Case Motor Performance Circuit High" fault, meaning there is an issue with the electrical circuit or performance of the transfer case motor.

2. What are the symptoms of the C140C code in a Dodge vehicle?

Common symptoms include the "Service 4WD" light illuminating, failure to shift between 4WD modes, or abnormal noises from the transfer case.

3. What causes the C140C code to appear?

Possible causes include a faulty transfer case motor, damaged wiring or connectors, a blown fuse, or issues with the transfer case control module.

4. How can I diagnose the C140C code on my Dodge?

Start by inspecting the transfer case motor wiring and connectors for damage or corrosion, checking the motor for proper operation, and testing the circuit for high voltage or resistance.

5. Can I drive my Dodge with the C140C code active?

Driving may still be possible, but 4WD functionality could be impaired, especially in off-road or slippery conditions, so it’s best to address the issue promptly.

6. How do I fix the C140C code on a Dodge vehicle?

Repairs may include replacing the transfer case motor, repairing or replacing damaged wiring, clearing corrosion from connectors, or resetting the system after repairs.

7. Is the transfer case motor expensive to replace?

The cost varies depending on the model, but the transfer case motor can range from $200 to $500 for the part, plus labor if done by a professional.

8. Can a bad transfer case motor cause other problems?

Yes, a malfunctioning motor can prevent proper 4WD engagement, cause drivetrain stress, and lead to further damage if not addressed.

9. Do I need to reprogram the system after fixing the C140C code?

In some cases, the transfer case control module may require reprogramming or recalibration after replacing the motor or repairing the circuit.

10. What tools are needed to diagnose and repair the C140C code?

You’ll need an OBDII scanner, multimeter, and basic hand tools to diagnose and repair wiring or replace the transfer case motor.

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