C038D 2017 Chevrolet Silverado Code - Range Actuator Position Not Learned
Quick Answer
This is an internal programming fault detection of the transfer case control module. Common causes include Perform Range Actuator Learn Procedure. 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
- C038D 2017 Chevrolet Silverado indicates Range Actuator Position Not Learned.
- Common causes
- Common causes include Perform Range Actuator Learn Procedure.
- 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 C038D 2017 Chevrolet Silverado Description
This Diagnostic Trouble Code (DTC) is set anytime a transfer case control module is replaced or reprogrammed. The Range Actuator Learn procedure must be performed in order for the transfer case control module to learn current clutch tolerance based on clutch stack up and accumulated clutch wear.
What are the Possible Causes of the DTC C038D 2017 Chevrolet Silverado?
- Perform Range Actuator Learn Procedure
How to Fix the DTC C038D 2017 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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C038D 2017 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 C038D 2017 Chevrolet Silverado code?
Need more information on how to fix the C038D 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals
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Frequently Asked Questions about C038D 2017 Chevrolet Silverado Code
1. What does OBDII code C038D mean on a 2017 Chevrolet Silverado?
C038D indicates that the Range Actuator Position Not Learned, meaning the transfer case control module (TCCM) has not successfully calibrated the actuator's position.
2. What are the symptoms of code C038D in a 2017 Chevrolet Silverado?
Common symptoms include a Service 4WD message on the dashboard, failure to shift into 4WD or 2WD modes, and potential drivability issues in certain terrains.
3. What causes the C038D code to appear?
Typical causes include a malfunctioning transfer case actuator, faulty TCCM, wiring or connection issues, or improper calibration during repairs or part replacements.
4. Can a weak battery cause the C038D code?
Yes, a weak or failing battery can cause voltage drops, leading to calibration failure and triggering the C038D code.
5. How is the C038D code diagnosed?
A technician will scan the vehicle with an OBDII scanner, inspect the transfer case actuator, check wiring and connectors, and attempt to perform a position relearn procedure.
6. Can I drive my Silverado with the C038D code?
While the truck may still be drivable, improper transfer case function could limit 4WD capability, affecting performance in off-road or slippery conditions.
7. How do you fix the C038D code?
Repairs may involve recalibrating the transfer case actuator, replacing a faulty actuator, repairing wiring issues, or reprogramming the TCCM.
8. How do you perform a transfer case actuator relearn?
The relearn process typically requires a scan tool capable of performing TCCM calibration procedures, which are outlined in the manufacturer’s service manual.
9. What is the cost to repair the C038D code?
Repair costs vary but can range from $150 to $600 depending on whether recalibration, actuator replacement, or additional repairs are needed.
10. Can a software update resolve the C038D code?
In some cases, a TCCM software update from the manufacturer may resolve calibration issues and eliminate the code.
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