AutoCodes – GMC – C0392 2015 GMC Sierra

C0392 2015 GMC Sierra Code - Transfer Case Range Position Sensor Circuit

Quick Answer

The Transfer Case Control Module receives input from the Transfer Case Gear Position Sensor, also known as the range position sensor or the rotational position sensor. Common causes include Faulty Transfer Case Range Position Sensor, Transfer Case Range Position Sensor harness is open or shorted, Transfer Case Range Position Sensor 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: C0392 2015 GMC Sierra indicates Transfer Case Range Position Sensor Circuit.
Common causes: Common causes include Faulty Transfer Case Range Position Sensor, Transfer Case Range Position Sensor harness is open or shorted, Transfer Case Range Position Sensor 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 335

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
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C0392 2015 GMC Sierra Description

The Transfer Case Control Module receives input from the Transfer Case Gear Position Sensor, also known as the range position sensor or the rotational position sensor. The Gear Position Senso receives a 5-volt reference signal from the Transfer Case Control Module. In return the Gear Position Senso sends the Transfer Case Control Module a variable pulse width modulated signal indicating the position of the transfer case. The Gear Position Sensor works in conjunction with the range actuator position sensor, inside the A16 Transfer Case Motor, also known as the transfer case range actuator, to confirm the transfer case position. The Gear Position Sensor is more sensitive than the range actuator 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.

OBDII Code C0392 2015 GMC Sierra - Transfer Case Range Position Sensor Circuit - AutoCodes.com — C0392 2015 GMC Sierra Code - Transfer Case Range Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC C0392 2015 GMC Sierra?

Faulty Transfer Case Range Position Sensor
Transfer Case Range Position Sensor harness is open or shorted
Transfer Case Range Position Sensor circuit poor electrical connection
Faulty Transfer Case Control Module

How to Fix the DTC C0392 2015 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.

What does this mean?

Code Tech Notes

C0392:08 Transfer Case Range Position Sensor Circuit Performance Signal Invalid
C0392:28 Transfer Case Range Position Sensor Circuit Incorrect Frequency

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0392 2015 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 C0392 2015 GMC Sierra code?

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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 C0392 2015 GMC Sierra Code

1. What does the OBDII code C0392 mean on a 2015 GMC Sierra?

C0392 indicates an issue with the Transfer Case Range Position Sensor Circuit, which detects the position of the transfer case and sends data to the vehicle's control modules.

2. What are the common symptoms of code C0392 in a 2015 GMC Sierra?

Symptoms may include the service 4WD light illuminating, inability to shift into certain transfer case modes, and erratic or unresponsive four-wheel-drive operation.

3. What causes the C0392 code to appear on a 2015 GMC Sierra?

Common causes include a faulty transfer case range position sensor, damaged wiring or connectors in the circuit, or an issue with the transfer case control module.

4. Can I still drive my 2015 GMC Sierra with the C0392 code?

Driving may still be possible, but four-wheel-drive functionality could be compromised, which might affect performance in off-road or slippery conditions.

5. How do you diagnose the C0392 code on a 2015 GMC Sierra?

Diagnosis involves scanning for codes, inspecting the wiring and connectors for damage, testing the transfer case position sensor, and verifying proper function of the transfer case control module.

6. How is the C0392 code fixed on a 2015 GMC Sierra?

Repairs may include replacing the transfer case range position sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the transfer case control module.

7. How much does it cost to repair the C0392 code on a 2015 GMC Sierra?

Repair costs can range from $150 to $500 or more, depending on whether the sensor, wiring, or control module needs replacement and labor rates in your area.

8. Can a faulty transfer case range position sensor cause other issues?

Yes, it may lead to incorrect transfer case operation, reduced vehicle stability in certain conditions, or further wear on drivetrain components.

9. Is the C0392 code a common issue in the 2015 GMC Sierra?

While not extremely common, it can occur, especially in vehicles frequently used for towing, off-roading, or in harsh environments that may stress the transfer case system.

10. Can clearing the C0392 code fix the issue temporarily?

Clearing the code may turn off the warning light temporarily, but it will return if the underlying issue isnâ€™t resolved.