AutoCodes – GMC – C0396 2017 GMC Sierra

C0396 2017 GMC Sierra Code - Range Actuator Position Sensor Circuit

Quick Answer

The Transfer Case Control Module receives input from the range actuator position sensor and the transfer case range position sensor. 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
C0396 2017 GMC Sierra indicates Range Actuator Position Sensor Circuit.
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.
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Code Popularity 188
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 11, 2023
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Code C0396 2017 GMC Sierra Description

The Transfer Case Control Module receives input from the range actuator position sensor and the transfer case range position sensor. Both sensors send this information as voltage signals which are converted to degrees and rotational direction by the Transfer Case Control Module software. If the two sensors disagree by greater than a predetermined amount the Diagnostic Trouble Code (DTC) will be set.
The range actuator position sensor receives an 8-volt reference signal from the Transfer Case Control Module. In return, the range actuator position sensor sends the Transfer Case Control Module a variable pulse width modulated signal indicating the position of the transfer case and a range actuator position direction signal. The range actuator position sensor, inside the A16 transfer case motor, also known as the transfer case range actuator, works in conjunction with the range position sensor to confirm the transfer case position. The range actuator position sensor is more sensitive than the transfer case range position sensor and is able to indicate to the Transfer Case Control Module the exact position of the transfer case between range changes. It is also able to show how much clutch activation is being commanded at any time.
The transfer case range position sensor, also known as the transfer case two/four-wheel drive actuator position sensor, receives a 5-volt reference signal from the Transfer Case Control Module and sends back a continuously variable pulse width modulated signal to the Transfer Case Control Module. This continuously variable signal indicates the position of the transfer case actuator.
The range actuator position sensor is more sensitive than the transfer case range position sensor but needs to reference the transfer case range position sensor value at ignition ON and mode changes. The transfer case range position sensor is an absolute sensor. The Transfer Case Control Module synchronizes the range actuator position sensor with the transfer case range position sensor at ignition ON and mode changes.
The range actuator position sensor is an integral part of the A16 Transfer Case Motor and cannot be replaced independently.
The transfer case range position sensor, also known as the gear position sensor, is an independently replaceable part.
OBDII Code C0396 2017 GMC Sierra - Range Actuator Position Sensor Circuit - AutoCodes.com
C0396 2017 GMC Sierra Code - Range Actuator Position Sensor Circuit

What are the Possible Causes of the DTC C0396 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 C0396 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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0396 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 C0396 2017 GMC Sierra code?

Need more information on how to fix the C0396 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 C0396 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code C0396 in a 2017 GMC Sierra?

When this code is triggered, common symptoms may include poor fuel efficiency, rough engine performance, and the illumination of the Check Engine Light.

2. What can cause the OBDII code C0396 in a 2017 GMC Sierra?

The code C0396 is often caused by a faulty range actuator position sensor or issues with the sensor circuit wiring.

3. How serious is the OBDII code C0396 in a 2017 GMC Sierra?

While the vehicle may still be drivable with this code, it is important to address it promptly to prevent potential damage to other engine components and ensure optimal performance.

4. Can I repair the OBDII code C0396 in a 2017 GMC Sierra myself?

If you have the necessary tools and automotive repair knowledge, you may be able to replace the range actuator position sensor or repair the wiring yourself. However, it is recommended to consult with a professional mechanic for accurate diagnosis and repair.

5. How do I diagnose the OBDII code C0396 in a 2017 GMC Sierra?

Diagnosing this code typically involves using an OBDII scanner to retrieve the specific error code, followed by inspecting the range actuator position sensor and its circuit for any signs of damage or malfunction.

6. How much does it cost to repair the OBDII code C0396 in a 2017 GMC Sierra?

The cost of repairing this code can vary depending on the extent of the issue, the parts needed, and the labor rates of the repair shop. It is advisable to obtain quotes from different mechanics or dealerships for an accurate estimate.

7. Can driving with the OBDII code C0396 in a 2017 GMC Sierra cause further damage?

Continued driving with this code may lead to decreased fuel efficiency, engine performance issues, or potential damage to other components in the long run. It is recommended to address the issue promptly.

8. How long does it take to repair the OBDII code C0396 in a 2017 GMC Sierra?

The repair time can vary depending on the exact cause of the code and the availability of parts. In general, it may take a few hours to a full day to diagnose and repair the issue.

9. Are there any temporary fixes for the OBDII code C0396 in a 2017 GMC Sierra?

There are no recommended temporary fixes for this code, as addressing the root cause is essential to ensure the vehicle's proper functioning and performance.

10. Can weather conditions affect the triggering of OBDII code C0396 in a 2017 GMC Sierra?

Extreme weather conditions, such as excessive heat or cold, can potentially impact the range actuator position sensor or its circuit, leading to the triggering of this code. Regular maintenance can help prevent such issues.

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