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P2C0B 2021 Chevrolet Silverado Code - Intake Camshaft Profile Actuator Position Sensor 2 Circuit Low Voltage

Quick Answer

The P2C0B diagnostic trouble code indicates a low voltage condition in the Intake Camshaft Profile Actuator Position Sensor 2 circuit. Common causes include Faulty Intake Camshaft Profile Actuator, Intake Camshaft Profile Actuator harness is open or shorted, Intake 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
P2C0B 2021 Chevrolet Silverado indicates Intake Camshaft Profile Actuator Position Sensor 2 Circuit Low Voltage.
Common causes
Common causes include Faulty Intake Camshaft Profile Actuator, Intake Camshaft Profile Actuator harness is open or shorted, Intake 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 29, 2026
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Code P2C0B 2021 Chevrolet Silverado Description

The P2C0B diagnostic trouble code indicates a low voltage condition in the Intake Camshaft Profile Actuator Position Sensor 2 circuit. This sensor is a crucial component of the variable valve timing (VVT) system, which allows the engine to optimize performance, fuel efficiency, and emissions by adjusting the timing of the intake valves. The sensor employs 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 for performance and low-lift for fuel economy or cylinder deactivation.
OBDII Code P2C0B 2021 Chevrolet Silverado - Intake Camshaft Profile Actuator Position Sensor 2 Circuit Low Voltage
P2C0B 2021 Chevrolet Silverado Code - Intake Camshaft Profile Actuator Position Sensor 2 Circuit Low Voltage

Common Causes of P2C0B 2021 Chevrolet Silverado

  1. Faulty Intake Camshaft Profile Actuator
  2. Intake Camshaft Profile Actuator harness is open or shorted
  3. Intake Camshaft Profile Actuator circuit poor electrical connection
  4. Faulty Engine Control Module (ECM)
  5. Contamination or mechanical wear affecting the actuator pin

Symptoms of P2C0B 2021 Chevrolet Silverado

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

How to Fix P2C0B 2021 Chevrolet Silverado

  1. Perform a visual inspection of the Intake Camshaft Profile Actuator and its wiring harness for any signs of damage or wear.
  2. Test the voltage and ground signals at the sensor connector to ensure proper electrical connections.
  3. Replace the Intake Camshaft Profile Actuator if it is found to be faulty or malfunctioning.
  4. Repair or replace any damaged wiring or connectors in the actuator circuit.
  5. Clear the diagnostic trouble codes and perform a road test to confirm that the issue has been resolved.

Cost to Fix P2C0B 2021 Chevrolet Silverado

The cost to diagnose and repair the P2C0B code can vary widely depending on the specific issue and the vehicle make and model. Typical parts, such as the Intake Camshaft Profile Actuator, 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. Overall, you might expect to spend between $200 and $600 for a complete repair, with dealership rates generally higher than independent shops.

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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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