C0397 Chevrolet 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 Chevrolet 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.
Code C0397 Chevrolet Description
What are the Possible Causes of the DTC C0397 Chevrolet?
- 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 Chevrolet?
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.
Code Tech Notes
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 Chevrolet 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 Chevrolet code?
Need more information on how to fix the C0397 Chevrolet code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C0397 Chevrolet code diagnosed by a professional: Find a repair shop in your area
Information for Specific Chevrolet Models
- C0397 2014 Chevrolet Silverado — Transfer Case Clutch
- C0397 2015 Chevrolet Silverado — Transfer Case Clutch
- C0397 2016 Chevrolet Silverado — Transfer Case Clutch
- C0397 2017 Chevrolet Silverado — Transfer Case Clutch
- C0397 2018 Chevrolet Silverado — Transfer Case Clutch
Frequently Asked Questions about C0397 Chevrolet Code
1. What does OBDII code C0397 mean for a Chevrolet vehicle?
C0397 indicates an issue with the transfer case clutch system, which is responsible for distributing power between the front and rear wheels in vehicles with all-wheel or four-wheel drive.
2. What are common symptoms of the C0397 code in a Chevrolet?
Symptoms may include warning lights on the dashboard, difficulty engaging 4WD or AWD, unusual noises from the transfer case, or reduced performance in off-road or slippery conditions.
3. What causes the C0397 code to be triggered in a Chevrolet?
Common causes include a malfunctioning transfer case clutch, wiring issues, a faulty transfer case control module (TCCM), or low or contaminated transfer case fluid.
4. Can I drive my Chevrolet with the C0397 code active?
Driving with the C0397 code may be possible, but it’s not recommended, especially in conditions requiring 4WD or AWD. Prolonging the issue could lead to further damage to the transfer case components.
5. How do I diagnose the C0397 code on my Chevrolet?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the wiring and connectors for damage, checking transfer case fluid levels, and testing the transfer case clutch and related components.
6. What is the cost to repair a C0397 code issue on a Chevrolet?
Repair costs vary depending on the problem. Replacing a transfer case clutch can cost $500–$1,500 or more, while simpler issues like wiring repairs may cost significantly less.
7. Can a clogged or low transfer case fluid level cause the C0397 code?
Yes, low or dirty transfer case fluid can cause the transfer case clutch to malfunction, leading to the C0397 code. Regular maintenance can help prevent this issue.
8. How do I reset the C0397 code after repairs?
After addressing the root cause, use an OBDII scanner to clear the code. If the issue is resolved, the code should not return.
9. Is the C0397 code related to other OBDII codes?
Yes, the C0397 code may appear alongside other transfer case-related codes, such as C0327 or C0379, indicating additional issues in the transfer case system.
10. What should I check first when troubleshooting the C0397 code on a Chevrolet?
Start by inspecting the transfer case fluid condition and level, followed by checking the wiring and connectors for damage or corrosion before testing the transfer case clutch itself.
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