AutoCodes – Chevrolet – C0387 2015 Chevrolet Silverado

C0387 2015 Chevrolet Silverado Code - Unable to Complete Shift

Quick Answer

The Transfer Case Motor, also known as the transfer case range actuator, is a bi-directional, permanent magnet, DC motor. 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: C0387 2015 Chevrolet Silverado indicates Unable to Complete Shift.
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 260

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 C0387 2015 Chevrolet Silverado Description

The Transfer Case Motor, also known as the transfer case range actuator, is a bi-directional, permanent magnet, DC motor. When energized, through the transfer case clockwise circuit or transfer case counterclockwise circuit, the ground is provided by the opposing motor control circuit which becomes grounded through the transfer case control module ground circuit. The transfer case range actuator, through a series of gears, rotates the transfer case control actuator shaft which moves the transfer case two/four-wheel drive actuator cam and transfer case high/low shift fork in order to shift the transfer case between the following modes or ranges: 2WD, 4WD/AWD Automatic, 4WD High/Locked, 4WD Low, Neutral.
If the shift lever detent shaft were to bind, or there was a mechanical failure, or the transfer case clockwise circuit and the transfer case counterclockwise circuit were shorted together, the shift would not be completed. This will cause the Diagnostic Trouble Code (DTC) to be set in order to protect system components from damage.

OBDII Code C0387 2015 Chevrolet Silverado - Unable to Complete Shift - AutoCodes.com — C0387 2015 Chevrolet Silverado Code - Unable to Complete Shift

What does this mean?

What are the Possible Causes of the DTC C0387 2015 Chevrolet Silverado?

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

How to Fix the DTC C0387 2015 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 C0387 2015 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 C0387 2015 Chevrolet Silverado code?

Need more information on how to fix the C0387 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 C0387 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code C0387 on a 2015 Chevrolet Silverado?

The common symptoms include difficulty shifting gears, the vehicle stuck in a particular gear, and the "Unable to Complete Shift" error message displayed on the dashboard.

2. What is the possible cause of OBDII code C0387 on a 2015 Chevrolet Silverado?

The code C0387 typically indicates a problem with the shift actuator control system, which can be caused by a faulty shift actuator, damaged wiring, or a malfunctioning control module.

3. How can I diagnose the issue related to OBDII code C0387 on my 2015 Chevrolet Silverado?

Diagnosing the problem may involve using a scan tool to retrieve the specific trouble codes, testing the shift actuator for proper operation, inspecting the wiring harness for damage, and checking the control module for faults.

4. What are the repair options for fixing OBDII code C0387 on a 2015 Chevrolet Silverado?

Repair options may include replacing the faulty shift actuator, repairing or replacing damaged wiring, resetting the control module, or reprogramming the control module if necessary.

5. Can I drive my 2015 Chevrolet Silverado with OBDII code C0387 present?

It is not recommended to drive the vehicle with OBDII code C0387 present, as it can lead to further transmission issues and potentially cause safety hazards on the road.

6. Are there any DIY tips for troubleshooting OBDII code C0387 on a 2015 Chevrolet Silverado?

While some basic troubleshooting steps can be done by DIY enthusiasts, diagnosing and repairing OBDII code C0387 may require specialized tools and expertise, so it is advisable to seek professional help.

7. How much does it typically cost to repair OBDII code C0387 on a 2015 Chevrolet Silverado?

The cost of repairing OBDII code C0387 can vary depending on the specific issue causing the code, the labor rates of the repair shop, and the cost of any replacement parts needed.

8. How long does it take to fix OBDII code C0387 on a 2015 Chevrolet Silverado?

The repair time for OBDII code C0387 can vary depending on the complexity of the issue and the availability of replacement parts, but it may take a few hours to a full day to complete the repair.

9. Can OBDII code C0387 on a 2015 Chevrolet Silverado cause any additional damage if left unrepaired?

Leaving OBDII code C0387 unrepaired can potentially cause further damage to the transmission system and other related components, leading to more expensive repairs down the line.

10. Is OBDII code C0387 a common issue in 2015 Chevrolet Silverado vehicles?

While OBDII code C0387 may not be extremely common, it can still occur in 2015 Chevrolet Silverado vehicles due to various factors such as wear and tear, electrical issues, or component failures.