Engine-CodesChevrolet – P122C 2014 Chevrolet Silverado

P122C 2014 Chevrolet Silverado Code - Intake Air Flow Valve Control Circuit Shorted

Quick Answer

The P122C diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates a problem with the intake air flow valve control circuit being shorted. Common causes include Wiring or connector damage, Faulty intake air flow valve, Corrosion in the 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
P122C 2014 Chevrolet Silverado indicates Intake Air Flow Valve Control Circuit Shorted.
Common causes
Common causes include Wiring or connector damage, Faulty intake air flow valve, Corrosion in the 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.
Table of contents Created and updated by William Orellana on Sep 27, 2024
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Code P122C 2014 Chevrolet Silverado Description

The P122C diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates a problem with the intake air flow valve control circuit being shorted. The intake air flow valve is a crucial component of the vehicle's air intake system, responsible for regulating the amount of air entering the engine. This code suggests that there is a short circuit in the circuit that controls the intake air flow valve, disrupting its proper functioning.

OBDII Code P122C 2014 Chevrolet Silverado - Intake Air Flow Valve Control Circuit Shorted
P122C 2014 Chevrolet Silverado Code - Intake Air Flow Valve Control Circuit Shorted

Common Causes of P122C 2014 Chevrolet Silverado

  1. Wiring or connector damage
  2. Faulty intake air flow valve
  3. Corrosion in the circuit
  4. Electrical short circuit
  5. Poor electrical connections

Symptoms of P122C 2014 Chevrolet Silverado

  1. Engine lacks power
  2. Rough idling or stalling
  3. Difficulty starting the engine
  4. Poor fuel efficiency
  5. Increased emissions

How to Fix P122C 2014 Chevrolet Silverado

  1. Begin by inspecting the wiring and connectors for any visible damage or corrosion. Repair or replace any damaged components.
  2. Test the intake air flow valve to determine if it is functioning correctly. Replace the valve if necessary.
  3. Check for any electrical short circuits in the circuit and repair as needed.
  4. Clear the DTC with a scan tool and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, consult a professional mechanic for further diagnosis and repair.

Cost to Fix P122C 2014 Chevrolet Silverado

The typical repair costs for addressing a P122C code on a 2014 Chevrolet Silverado can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check local rates for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops often charge less.

Tech Notes for P122C 2014 Chevrolet Silverado









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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.

Frequently Asked Questions about P122C 2014 Chevrolet Silverado Code

1. What does the OBDII code P122C mean on a 2014 Chevrolet Silverado?

P122C indicates a short circuit in the intake air flow valve control circuit, which manages airflow entering the engine for optimal performance.

2. What are the common symptoms of code P122C on a 2014 Chevrolet Silverado?

Symptoms may include reduced engine performance, poor acceleration, rough idling, or the illumination of the check engine light.

3. What causes the P122C code to appear on a 2014 Chevrolet Silverado?

Common causes include damaged wiring or connectors in the intake air flow valve circuit, a faulty intake air flow valve, or issues with the engine control module (ECM).

4. Can I drive my 2014 Silverado with the P122C code?

Driving with this code is possible but not recommended, as it can lead to reduced engine performance and potential long-term damage.

5. How do I diagnose the P122C code on my 2014 Chevrolet Silverado?

Start by inspecting the intake air flow valve wiring and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.

6. How can I fix the P122C code on a 2014 Chevrolet Silverado?

Repairs may involve replacing damaged wiring, repairing loose connections, or replacing the intake air flow valve if it is faulty.

7. Does the P122C code require reprogramming the ECM?

Reprogramming the ECM is usually not necessary unless the ECM itself is determined to be faulty after other repairs.

8. How much does it cost to repair the P122C code on a 2014 Chevrolet Silverado?

Repair costs can vary from $100 to $500, depending on whether the issue is with wiring, connectors, or a component like the intake air flow valve.

9. Can a dirty air filter cause the P122C code on a 2014 Chevrolet Silverado?

While a dirty air filter can restrict airflow, it is unlikely to cause this specific code, as it relates to the electrical circuit of the intake air flow valve.

10. Do I need special tools to fix the P122C code on my 2014 Chevrolet Silverado?

Basic tools like a multimeter and OBDII scanner are typically sufficient for diagnosing and repairing this issue.

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