AutoCodes – Chevrolet – C0397 2014 Chevrolet Silverado

C0397 2014 Chevrolet Silverado Code - Transfer Case Clutch

Quick Answer

In 4WD/AWD Automatic range, the Transfer Case Control Module monitors the front and rear wheel speed sensors for slip. Common causes include Faulty Transfer Case Motor (Transfer Case Two/Four Wheel Drive Actuator), 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: C0397 2014 Chevrolet Silverado indicates Transfer Case Clutch.
Common causes: Common causes include Faulty Transfer Case Motor (Transfer Case Two/Four Wheel Drive Actuator), 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 302

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 Jul 11, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C0397 2014 Chevrolet Silverado Description

In 4WD/AWD Automatic range, the Transfer Case Control Module monitors the front and rear wheel speed sensors for slip. If the Transfer Case Control Module detects slip and is unable to correct for a difference between the front and rear speed sensors, it will command the transfer case to apply the clutch. In addition, the Transfer Case Control Module tests for clutch pack wear by performing a high side kiss point check at power down and comparing it to the transfer case range actuator position sensor reading.

OBDII Code C0397 2014 Chevrolet Silverado - Transfer Case Clutch - AutoCodes.com — C0397 2014 Chevrolet Silverado Code - Transfer Case Clutch

What does this mean?

What are the Possible Causes of the DTC C0397 2014 Chevrolet Silverado?

Faulty Transfer Case Motor (Transfer Case Two/Four Wheel Drive Actuator)
Transfer Case Motor harness is open or shorted
Transfer Case Motor circuit poor electrical connection
Faulty Transfer Case Control Module

How to Fix the DTC C0397 2014 Chevrolet Silverado?

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 does this mean?

Code Tech Notes

C0397:54 Transfer Case Clutch High Temperature
C0397:58 Transfer Case Clutch Performance
C0397:4B (if equipped) Transfer Case Clutch Calibration Not Learned
C0397:F3 Transfer Case Clutch Worn Out Clutch
C0397:F4 Transfer Case Range Position Sensor Over Travel

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0397 2014 Chevrolet Silverado 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.

Need more information about the C0397 2014 Chevrolet Silverado code?

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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 C0397 2014 Chevrolet Silverado Code

1. What does the OBDII code C0397 mean on a 2014 Chevrolet Silverado?

C0397 indicates an issue with the transfer case clutch, specifically a performance problem within the transfer case clutch control circuit.

2. What are the symptoms of the C0397 code on a 2014 Chevrolet Silverado?

Common symptoms include the Service 4WD light illuminating, issues engaging 4WD or AWD, unusual noises from the transfer case, and erratic or improper 4WD operation.

3. What causes the C0397 code to appear on a Chevrolet Silverado?

Possible causes include a faulty transfer case clutch, damaged wiring or connectors in the control circuit, a malfunctioning transfer case control module (TCCM), or low or contaminated transfer case fluid.

4. Can I still drive my 2014 Silverado with the C0397 code?

Yes, but it is not recommended to delay repairs as the 4WD system may not function correctly, potentially leading to drivetrain damage or unsafe driving conditions in poor weather.

5. How do I diagnose the C0397 code on my Silverado?

Start by checking the transfer case fluid level and condition, inspecting the wiring and connectors for damage or corrosion, and testing the transfer case clutch and related circuits using a multimeter.

6. What is the most common fix for the C0397 code?

The most common fix is replacing the transfer case clutch assembly or repairing damaged wiring in the control circuit.

7. How much does it cost to fix the C0397 code on a 2014 Silverado?

Repair costs vary but can range from $200 to $800 depending on whether the issue is wiring-related or requires replacement of the transfer case clutch.

8. Can the transfer case fluid cause the C0397 code?

Yes, low or contaminated transfer case fluid can cause the clutch to malfunction, potentially triggering the C0397 code.

9. Do I need to replace the transfer case control module for the C0397 code?

Not necessarily; the TCCM should only be replaced if it is confirmed to be malfunctioning after diagnosing other potential causes like wiring or the transfer case clutch.

10. How can I prevent the C0397 code from recurring?

Regular maintenance, including checking and changing the transfer case fluid, inspecting wiring for damage, and addressing 4WD system issues promptly, can help prevent the code from recurring.