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P2C14 2021 Chevrolet Silverado Code - Exhaust Camshaft Profile Actuator Position Sensor 1 Circuit Low Voltage

Quick Answer

The P2C14 diagnostic trouble code (DTC) indicates a low voltage condition in the Exhaust Camshaft Profile Actuator Position Sensor 1 circuit. Common causes include Faulty Exhaust Camshaft Profile Actuator, Exhaust Camshaft Profile Actuator harness is open or shorted, Exhaust Camshaft Profile Actuator 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
P2C14 2021 Chevrolet Silverado indicates Exhaust Camshaft Profile Actuator Position Sensor 1 Circuit Low Voltage.
Common causes
Common causes include Faulty Exhaust Camshaft Profile Actuator, Exhaust Camshaft Profile Actuator harness is open or shorted, Exhaust Camshaft Profile Actuator 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.
What is this?
Table of contents Created and updated by William Orellana on May 31, 2026
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Code P2C14 2021 Chevrolet Silverado Description

The P2C14 diagnostic trouble code (DTC) indicates a low voltage condition in the Exhaust Camshaft Profile Actuator Position Sensor 1 circuit. This sensor is a crucial component of the exhaust camshaft profile actuator assembly, which plays a vital role in optimizing engine performance. The actuator adjusts the position of the exhaust camshaft profile sleeve, allowing for variable valve lift strategies that enhance engine efficiency, reduce emissions, and improve overall power delivery. The sensor employs a Hall-effect element that detects changes in a magnetic field to relay the position of the actuator pins to the Engine Control Module (ECM).
OBDII Code P2C14 2021 Chevrolet Silverado - Exhaust Camshaft Profile Actuator Position Sensor 1 Circuit Low Voltage
P2C14 2021 Chevrolet Silverado Code - Exhaust Camshaft Profile Actuator Position Sensor 1 Circuit Low Voltage

Common Causes of P2C14 2021 Chevrolet Silverado

  1. Faulty Exhaust Camshaft Profile Actuator
  2. Exhaust Camshaft Profile Actuator harness is open or shorted
  3. Exhaust Camshaft Profile Actuator circuit poor electrical connection
  4. Faulty Engine Control Module (ECM)
  5. Mechanical issues such as sticking actuator pins or debris in the actuator assembly

Symptoms of P2C14 2021 Chevrolet Silverado

  1. Engine Light ON (or Service Engine Soon Warning Light)
  2. Reduced engine power or sluggish acceleration
  3. Decreased fuel efficiency
  4. Rough idling or engine misfires
  5. Increased emissions or potential failure of emissions tests

How to Fix P2C14 2021 Chevrolet Silverado

  1. Perform a visual inspection of the Exhaust Camshaft Profile Actuator and its wiring harness for any signs of damage or wear.
  2. Test the Exhaust Camshaft Profile Actuator Position Sensor for proper voltage output and continuity.
  3. Check for any fault codes using a diagnostic scanner to confirm the P2C14 code and identify any related codes.
  4. If the sensor is faulty, replace it with a new unit and ensure all connections are secure.
  5. Clear the fault codes and perform a road test to verify that the issue has been resolved and the engine operates normally.

Cost to Fix P2C14 2021 Chevrolet Silverado

The cost to diagnose and repair the P2C14 code typically ranges from $150 to $600, depending on the specific issue and the parts required. Replacing the Exhaust Camshaft Profile Actuator Position Sensor can cost between $100 and $300 for the part alone, with labor costs varying from $80 to $150 per hour. Dealerships may charge higher rates, while independent shops may offer more competitive pricing. The total cost can also vary based on the vehicle's make and model, as well as the local labor market.

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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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