AutoCodes – Chevrolet – C038D Chevrolet

C038D Chevrolet 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 Chevrolet 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.

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Code Popularity 2,933

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
Cost to Diagnose
FAQs
Comments
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Code C038D Chevrolet Description

This is an internal programming fault detection of the transfer case control module. No external circuits are involved.
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.

OBDII Code C038D Chevrolet - Range Actuator Position Not Learned - AutoCodes.com — C038D Chevrolet Code - Range Actuator Position Not Learned

What does this mean?

What are the Possible Causes of the DTC C038D Chevrolet?

Perform Range Actuator Learn Procedure

How to Fix the DTC C038D 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C038D 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 C038D Chevrolet code?

Need more information on how to fix the C038D Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C038D Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

C038D 2014 Chevrolet Silverado — Range Actuator Position Not Learned
C038D 2015 Chevrolet Silverado — Range Actuator Position Not Learned
C038D 2016 Chevrolet Silverado — Range Actuator Position Not Learned
C038D 2017 Chevrolet Silverado — Range Actuator Position Not Learned
C038D 2018 Chevrolet Silverado — Range Actuator Position Not Learned

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 C038D Chevrolet Code

1. What are the common symptoms of OBDII code C038D "Range Actuator Position Not Learned" in a Chevrolet?

- Common symptoms include erratic shifting behavior, loss of power, and the transmission going into limp mode.

2. What causes the OBDII code C038D to trigger in a Chevrolet?

- This code is typically triggered when the transmission range actuator position has not been properly learned by the vehicle's computer.

3. How can I repair the OBDII code C038D "Range Actuator Position Not Learned" in my Chevrolet?

- To repair this code, you may need to perform a transmission relearn procedure using a compatible diagnostic scan tool to calibrate the range actuator position.

4. Can a DIY enthusiast fix the OBDII code C038D in a Chevrolet?

- While it's possible for experienced DIYers to attempt the repair, it is recommended to seek professional help to ensure proper calibration and avoid further transmission issues.

5. Is it safe to continue driving with the OBDII code C038D present in a Chevrolet?

- It is not recommended to continue driving with this code as it can lead to further transmission problems and potential safety hazards on the road.

6. How long does it take to perform the transmission relearn procedure for the OBDII code C038D in a Chevrolet?

- The transmission relearn procedure can vary in time depending on the diagnostic scan tool being used, but it typically takes around 30 minutes to an hour to complete.

7. Will resetting the OBDII code C038D in a Chevrolet make it go away permanently?

- Simply resetting the code without addressing the root cause will not make it go away permanently. The transmission relearn procedure is necessary to properly resolve the issue.

8. Can extreme weather conditions impact the triggering of the OBDII code C038D in a Chevrolet?

- Yes, extreme weather conditions can potentially affect the transmission range actuator position learning process, leading to the triggering of this code.

9. Are there any preventative measures I can take to avoid the OBDII code C038D in my Chevrolet?

- Regular maintenance and servicing of the transmission system, including checking for any software updates, can help prevent issues like the triggering of this code.

10. Is the OBDII code C038D specific to certain Chevrolet models or does it occur across the brand's lineup?

- This code can occur in various Chevrolet models that are equipped with an OBDII system and a transmission range actuator, so it is not specific to a single model.