C0397 2017 GMC Sierra 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 2017 GMC Sierra 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 2017 GMC Sierra Description
What are the Possible Causes of the DTC C0397 2017 GMC Sierra?
- 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 2017 GMC Sierra?
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 2017 GMC Sierra 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 2017 GMC Sierra code?
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Frequently Asked Questions about C0397 2017 GMC Sierra Code
1. What does OBDII code C0397 in a 2017 GMC Sierra indicate?
Code C0397 specifically relates to a problem with the Transfer Case Clutch Circuit.
2. What are the common symptoms of OBDII code C0397 in a 2017 GMC Sierra?
Common symptoms include difficulty engaging or disengaging the transfer case, unusual noises from the transfer case, and warning lights on the dashboard.
3. What are some possible causes of OBDII code C0397 in a 2017 GMC Sierra?
Potential causes of this code include a faulty transfer case clutch actuator, damaged wiring or connectors in the transfer case clutch circuit, or issues with the transfer case control module.
4. How can I diagnose the issue related to OBDII code C0397 in my 2017 GMC Sierra?
Diagnosis typically involves using a scan tool to retrieve the trouble code, inspecting the transfer case clutch components for physical damage, and testing the circuit for proper voltage and continuity.
5. Can I continue driving my 2017 GMC Sierra with OBDII code C0397?
It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the transfer case components and potentially result in drivability issues.
6. How can I repair OBDII code C0397 in my 2017 GMC Sierra?
Repairing this code may involve replacing the transfer case clutch actuator, repairing damaged wiring or connectors, or reprogramming the transfer case control module.
7. Are there any DIY tips for addressing OBDII code C0397 in a 2017 GMC Sierra?
While some basic troubleshooting like checking for loose connections or damaged wires can be done by DIY enthusiasts, more complex repairs may require professional assistance due to the technical nature of the transfer case system.
8. How much does it cost to fix OBDII code C0397 in a 2017 GMC Sierra?
The cost of fixing this code can vary depending on the exact cause of the issue, the need for parts replacement, and labor costs. It's advisable to consult with a mechanic for a proper estimate.
9. Can resetting the OBDII system clear code C0397 in a 2017 GMC Sierra?
While clearing the code may temporarily remove the warning light, it will not resolve the underlying issue causing the code to trigger. It's essential to diagnose and fix the problem to prevent it from reoccurring.
10. Is OBDII code C0397 a common problem in 2017 GMC Sierra vehicles?
While not extremely common, issues related to the transfer case clutch circuit, including code C0397, can occur in 2017 GMC Sierra models, especially with high mileage or under stressful driving conditions.
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