C0396 2016 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 2016 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.
Code C0396 2016 GMC Sierra Description
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.
What are the Possible Causes of the DTC C0396 2016 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 2016 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
C0396:07 Range Actuator Position Sensor Circuit High Voltage
C0396:08 Range Actuator Position Sensor Circuit Performance Signal Invalid
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C0396 2016 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.
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Frequently Asked Questions about C0396 2016 GMC Sierra Code
1. What does the OBDII code C0396 mean on a 2016 GMC Sierra?
C0396 refers to an issue with the Range Actuator Position Sensor Circuit, which monitors the position of the transfer case actuator in the four-wheel-drive system.
2. What are the common symptoms of code C0396 on a 2016 GMC Sierra?
Typical symptoms include the Service 4WD light illuminating, issues shifting between 2WD and 4WD modes, or the vehicle being stuck in a specific mode.
3. What causes the C0396 code to appear?
Common causes include a faulty range actuator position sensor, damaged wiring or connections in the sensor circuit, or an issue with the transfer case control module (TCCM).
4. How can I diagnose the C0396 code on my GMC Sierra?
Start by scanning for codes, inspecting the wiring and connectors for damage, and testing the range actuator position sensor for proper operation using a multimeter.
5. Can a faulty transfer case motor cause the C0396 code?
Yes, a malfunctioning transfer case motor can impact the position sensor, leading to this code being triggered.
6. Is it safe to drive a 2016 GMC Sierra with the C0396 code?
While the vehicle may still be drivable, it could experience 4WD system malfunctions, which may limit off-road capabilities or traction in certain conditions.
7. How do I fix the C0396 code on a GMC Sierra?
Repairs might include replacing the range actuator position sensor, repairing damaged wiring, cleaning corroded connectors, or replacing the transfer case control module.
8. How much does it cost to fix the C0396 code on a 2016 GMC Sierra?
The cost can range from $100 to $500 depending on whether the issue is wiring-related or if components like the sensor or control module need replacement.
9. Can low transfer case fluid cause the C0396 code?
Low or contaminated transfer case fluid is unlikely to directly cause this code, but it can lead to other transfer case issues that may indirectly affect the system.
10. Do I need to reprogram the TCCM if I replace it to fix the C0396 code?
Yes, if the transfer case control module is replaced, it may need to be reprogrammed to match the vehicle's specifications.
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