P122C 2016 Chevrolet Silverado Code - Intake Air Flow Valve Control Circuit Shorted
Quick Answer
The P122C diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates a problem with the intake air flow valve control circuit being shorted. Common causes include Faulty Intake Air Flow Valve: The valve itself may be malfunctioning, causing the control circuit to short, Wiring or Connector Damage: Corrosion, fraying, or other damage to the wiring or connectors in the control circuit can lead to a short, ECM Malfunction: Issues with the engine control module (ECM) can also trigger a short in the intake air flow valve control 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 2016 Chevrolet Silverado indicates Intake Air Flow Valve Control Circuit Shorted.
- Common causes
- Common causes include Faulty Intake Air Flow Valve: The valve itself may be malfunctioning, causing the control circuit to short, Wiring or Connector Damage: Corrosion, fraying, or other damage to the wiring or connectors in the control circuit can lead to a short, ECM Malfunction: Issues with the engine control module (ECM) can also trigger a short in the intake air flow valve control 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.
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Code P122C 2016 Chevrolet Silverado Description
The P122C diagnostic trouble code (DTC) for a 2016 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 engine management system, responsible for regulating the amount of air entering the engine. When the control circuit is shorted, it means that there is an abnormal connection or low resistance in the circuit, which can disrupt the proper functioning of the valve.
Common Causes of P122C 2016 Chevrolet Silverado
- Faulty Intake Air Flow Valve: The valve itself may be malfunctioning, causing the control circuit to short.
- Wiring or Connector Damage: Corrosion, fraying, or other damage to the wiring or connectors in the control circuit can lead to a short.
- ECM Malfunction: Issues with the engine control module (ECM) can also trigger a short in the intake air flow valve control circuit.
- Electrical Shorts: Any electrical shorts in the circuit can disrupt the proper functioning of the intake air flow valve.
- Water Intrusion: Water entering the intake air flow valve control circuit can cause a short and lead to this code.
Symptoms of P122C 2016 Chevrolet Silverado
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Engine Performance: The engine may exhibit reduced power, hesitation, or rough idling due to incorrect air flow regulation.
- Poor Fuel Efficiency: A shorted intake air flow valve control circuit can lead to increased fuel consumption as the engine struggles to maintain the correct air-to-fuel ratio.
- Engine Stalling: In severe cases, the engine may stall or have difficulty starting due to the disrupted air flow control.
- Rough Acceleration: The vehicle may experience jerky or uneven acceleration as a result of the intake air flow valve issue.
How to Fix P122C 2016 Chevrolet Silverado
- Diagnose the Issue: Use a scan tool to retrieve the DTC and perform a thorough inspection of the intake air flow valve, wiring, connectors, and ECM to identify the root cause of the shorted circuit.
- Replace Intake Air Flow Valve: If the valve is found to be faulty, replace it with a new one to restore proper air flow regulation.
- Repair Wiring or Connectors: Repair or replace any damaged wiring or connectors in the control circuit to eliminate the short.
- Clear DTC and Test Drive: Clear the DTC from the ECM memory after repairs are completed and test drive the vehicle to ensure that the issue has been resolved.
- Perform ECM Reset: In some cases, resetting the ECM may be necessary to recalibrate the system after repairs have been made.
Cost to Fix P122C 2016 Chevrolet Silverado
The typical repair costs for addressing a P122C code on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing the intake air flow valve, repairing wiring or connectors, and resetting the ECM can range from $200 to $500, including parts and labor. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's recommended to consult with a trusted mechanic or dealership to get a more accurate estimate based on your specific situation.
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