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Engine-Codes – GMC – P2C10 2020 GMC Sierra

P2C10 2020 GMC Sierra Code - Intake Camshaft Profile Actuator Position Sensor 3 Circuit High Voltage

Quick Answer

The diagnostic code P2C10 pertains to the Intake Camshaft Profile Actuator Position Sensor 3 Circuit High Voltage. Common causes include Faulty Intake Camshaft Profile Actuator, Intake Camshaft Profile Actuator harness is open or shorted, Poor electrical connection in the Intake Camshaft Profile Actuator circuit. 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
P2C10 2020 GMC Sierra indicates Intake Camshaft Profile Actuator Position Sensor 3 Circuit High Voltage.
Common causes
Common causes include Faulty Intake Camshaft Profile Actuator, Intake Camshaft Profile Actuator harness is open or shorted, Poor electrical connection in the Intake Camshaft Profile Actuator circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on May 30, 2026
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Code P2C10 2020 GMC Sierra Description

The diagnostic code P2C10 pertains to the Intake Camshaft Profile Actuator Position Sensor 3 Circuit High Voltage. This sensor is a crucial component of the intake camshaft profile actuator assembly, which plays a significant role in managing the engine's performance characteristics. The sensor utilizes Hall-effect technology to monitor the position of the actuator pins that control the camshaft profile sleeve. By providing real-time feedback to the Engine Control Module (ECM), the sensor enables the engine to switch between different camshaft profiles, such as high-lift and low-lift modes, as well as cylinder deactivation. This adaptability optimizes engine performance, enhances fuel efficiency, and reduces emissions based on varying driving conditions.
OBDII Code P2C10 2020 GMC Sierra - Intake Camshaft Profile Actuator Position Sensor 3 Circuit High Voltage
P2C10 2020 GMC Sierra Code - Intake Camshaft Profile Actuator Position Sensor 3 Circuit High Voltage

Common Causes of P2C10 2020 GMC Sierra

  1. Faulty Intake Camshaft Profile Actuator
  2. Intake Camshaft Profile Actuator harness is open or shorted
  3. Poor electrical connection in the Intake Camshaft Profile Actuator circuit
  4. Faulty Engine Control Module (ECM)
  5. Damaged wiring or connectors related to the actuator or sensor

Symptoms of P2C10 2020 GMC Sierra

  1. Engine Light ON (or Service Engine Soon Warning Light)
  2. Reduced engine power and acceleration
  3. Poor fuel economy
  4. Rough idling or stalling
  5. Increased emissions or failed emissions test

How to Fix P2C10 2020 GMC Sierra

  1. Perform a visual inspection of the wiring and connectors associated with the intake camshaft profile actuator and sensor for any signs of damage or corrosion.
  2. Test the Intake Camshaft Profile Actuator Position Sensor for proper voltage and resistance using a multimeter to determine if it is functioning correctly.
  3. Check the integrity of the actuator itself, ensuring it moves freely and is not stuck or contaminated.
  4. If necessary, replace the faulty sensor or actuator and repair any damaged wiring or connectors.
  5. Clear the diagnostic trouble codes and perform a road test to ensure the issue is resolved and the engine operates smoothly.

Cost to Fix P2C10 2020 GMC Sierra

The cost to diagnose and repair the P2C10 code can vary significantly based on the specific issue and the vehicle's make and model. Typically, parts such as the intake camshaft profile actuator or position sensor can range from $100 to $400. Labor costs may vary, with most shops charging between $80 and $150 per hour, while dealerships may charge higher rates. Overall, the total repair cost could range from $200 to $800, depending on the extent of the repairs needed and local labor rates.

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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.

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