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Engine-Codes – GMC – P2C07 2023 GMC Sierra

P2C07 2023 GMC Sierra Code - Intake Camshaft Profile Actuator Position Sensor 1 Circuit Low Voltage

Quick Answer

The P2C07 code indicates a low voltage condition in the Intake Camshaft Profile Actuator Position Sensor 1 circuit. Common causes include Faulty Intake Camshaft Profile ActuatorIntake Camshaft Profile Actuator harness is open or shortedPoor electrical connection in the Intake Camshaft Profile Actuator circuitFaulty Engine Control Module (ECM)Contamination or mechanical wear affecting the actuator mechanism. 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
P2C07 2023 GMC Sierra indicates Intake Camshaft Profile Actuator Position Sensor 1 Circuit Low Voltage.
Common causes
Common causes include Faulty Intake Camshaft Profile ActuatorIntake Camshaft Profile Actuator harness is open or shortedPoor electrical connection in the Intake Camshaft Profile Actuator circuitFaulty Engine Control Module (ECM)Contamination or mechanical wear affecting the actuator mechanism.
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 29, 2026
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Code P2C07 2023 GMC Sierra Description

The P2C07 code indicates a low voltage condition in the Intake Camshaft Profile Actuator Position Sensor 1 circuit. This sensor is an integral component of the intake camshaft profile actuator assembly, which plays a crucial role in optimizing engine performance by adjusting the camshaft's profile according to driving conditions. The sensor utilizes Hall-effect technology to accurately 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 allows the ECM to switch between different camshaft profiles, such as high-lift for maximum power and low-lift for improved fuel economy.
OBDII Code P2C07 2023 GMC Sierra - Intake Camshaft Profile Actuator Position Sensor 1 Circuit Low Voltage
P2C07 2023 GMC Sierra Code - Intake Camshaft Profile Actuator Position Sensor 1 Circuit Low Voltage

Common Causes of P2C07 2023 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. Contamination or mechanical wear affecting the actuator mechanism

Symptoms of P2C07 2023 GMC Sierra

  1. Engine Light ON (or Service Engine Soon Warning Light)
  2. Reduced engine performance and power
  3. Increased fuel consumption
  4. Engine misfires or rough idling
  5. Unusual engine noises during operation

How to Fix P2C07 2023 GMC Sierra

  1. Perform a visual inspection of the Intake Camshaft Profile Actuator and its wiring harness for any visible damage or wear.
  2. Test the Intake Camshaft Profile Actuator Position Sensor for proper voltage and resistance using a multimeter.
  3. Check for continuity in the wiring harness and repair any open or shorted circuits.
  4. Replace the Intake Camshaft Profile Actuator or the Position Sensor if they are found to be faulty.
  5. Clear the diagnostic trouble codes and perform a road test to ensure the issue has been resolved.

Cost to Fix P2C07 2023 GMC Sierra

The cost to diagnose and repair the P2C07 code can vary significantly based on the specific issue and the vehicle model. Typically, parts such as the Intake Camshaft Profile Actuator or Position Sensor can range from $100 to $300, while labor costs can vary from $80 to $150 per hour, depending on the shop's location and expertise. In total, you might expect to spend anywhere from $200 to $600 for the complete repair, including parts and labor. Dealerships may charge more, while independent shops might offer more competitive 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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