C0397:F3 Code - Transfer Case Clutch Worn Out 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:F3 indicates Transfer Case Clutch Worn Out 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:F3 Description
What are the Possible Causes of the DTC C0397:F3?
- 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:F3?
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:F3 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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Frequently Asked Questions about C0397:F3 Code
1. What does OBDII code C0397:F3 mean?
Code C0397:F3 indicates that the transfer case clutch in a vehicle's drivetrain is worn out, leading to improper operation or inability to engage properly.
2. What are the common symptoms of code C0397:F3?
Symptoms include difficulty shifting into 4WD, grinding or unusual noises from the transfer case, reduced traction, or a 4WD warning light on the dashboard.
3. What causes the transfer case clutch to wear out?
Common causes include lack of proper maintenance, fluid contamination, excessive towing or off-road use, and normal wear and tear over time.
4. Can I drive with code C0397:F3 active?
While driving may still be possible in 2WD, it’s not recommended to ignore the issue as it can lead to further damage to the drivetrain or transfer case components.
5. How is code C0397:F3 diagnosed?
A mechanic will use a scan tool to retrieve the code, inspect the transfer case and clutch, check fluid levels and condition, and test the operation of the 4WD system.
6. What repairs are needed to fix code C0397:F3?
Repairs typically involve replacing the worn-out transfer case clutch, flushing and refilling the transfer case fluid, and checking for damage to related components.
7. How much does it cost to repair the transfer case clutch for code C0397:F3?
Repair costs can vary widely but generally range from $500 to $1,500, depending on the extent of the damage and labor costs.
8. How can I prevent the transfer case clutch from wearing out?
Regular maintenance, including timely fluid changes, avoiding excessive towing or off-road use, and addressing drivetrain issues early, can help extend the life of the clutch.
9. Will resetting the code temporarily fix the issue?
Resetting the code may turn off the warning light temporarily but won’t resolve the underlying problem. The clutch will still need to be repaired or replaced.
10. Can low transfer case fluid cause code C0397:F3?
Yes, low or contaminated transfer case fluid can accelerate clutch wear and trigger this code, so checking and maintaining proper fluid levels is critical.
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