C0396 GMC 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 GMC 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 GMC 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 GMC?
- 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 GMC?
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 GMC 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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Information for Specific GMC Models
- C0396 2014 GMC Sierra — Range Actuator Position Sensor Circuit
- C0396 2015 GMC Sierra — Range Actuator Position Sensor Circuit
- C0396 2016 GMC Sierra — Range Actuator Position Sensor Circuit
- C0396 2017 GMC Sierra — Range Actuator Position Sensor Circuit
- C0396 2018 GMC Sierra — Range Actuator Position Sensor Circuit
Frequently Asked Questions about C0396 GMC Code
1. What are the common symptoms of OBDII code C0396 GMC (Range Actuator Position Sensor Circuit)?
The common symptoms of this code may include rough shifting, difficulty shifting gears, and the check engine light illuminating on the dashboard.
2. What can cause OBDII code C0396 GMC to trigger?
This code is typically triggered by a malfunction in the range actuator position sensor circuit, which can be caused by wiring issues, a faulty sensor, or a problem with the transmission control module.
3. How serious is OBDII code C0396 GMC?
While this code may not cause immediate drivability issues, it is important to address it promptly to prevent potential transmission problems and ensure proper vehicle functionality.
4. How can I diagnose OBDII code C0396 GMC?
Diagnosing this code usually involves using a scan tool to retrieve the fault code, checking the wiring and connections related to the range actuator position sensor, and testing the sensor itself for proper function.
5. Can I drive my vehicle with OBDII code C0396 GMC?
It is not recommended to drive your vehicle for an extended period with this code present, as it can lead to transmission issues and potentially cause further damage.
6. How can I repair OBDII code C0396 GMC?
Repairing this code may involve repairing or replacing damaged wiring, replacing the range actuator position sensor, or addressing any issues with the transmission control module.
7. How much does it cost to fix OBDII code C0396 GMC?
The cost of fixing this code can vary depending on the underlying cause of the issue, the extent of the repairs needed, and the labor rates of the repair shop. It is recommended to get a diagnostic assessment to determine the exact cost.
8. Can OBDII code C0396 GMC be reset without repairing the issue?
While you can clear the code using a scan tool, it is not recommended to do so without addressing the underlying problem, as it may lead to recurring issues and potential damage to the transmission.
9. Are there any preventative measures to avoid OBDII code C0396 GMC?
Regular maintenance of your vehicle, including checking the transmission system and related components, can help prevent issues that may trigger this fault code.
10. How long does it take to repair OBDII code C0396 GMC?
The repair time for this code can vary depending on the specific cause of the issue, the availability of parts, and the expertise of the technician. It is best to consult with a professional for an accurate estimate of the repair time.
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