P122C 2015 Chevrolet Silverado Code - Intake Air Flow Valve Control Circuit Shorted
Quick Answer
The P122C diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates a problem with the Intake Air Flow Valve Control Circuit being shorted. Common causes include Damaged wiring or connectors in the intake air flow valve control circuit, Faulty intake air flow valve, Malfunctioning throttle position sensor. 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 2015 Chevrolet Silverado indicates Intake Air Flow Valve Control Circuit Shorted.
- Common causes
- Common causes include Damaged wiring or connectors in the intake air flow valve control circuit, Faulty intake air flow valve, Malfunctioning throttle position sensor.
- 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 2015 Chevrolet Silverado Description
The P122C diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates a problem with the Intake Air Flow Valve Control Circuit being shorted. This code is typically related to the electronic throttle control system of the vehicle. The intake air flow valve controls the amount of air entering the engine, which is crucial for proper combustion and performance. When the control circuit is shorted, it means that there is an abnormal connection or lack of resistance in the electrical circuit that controls the intake air flow valve.
Common Causes of P122C 2015 Chevrolet Silverado
- Damaged wiring or connectors in the intake air flow valve control circuit
- Faulty intake air flow valve
- Malfunctioning throttle position sensor
- Electrical issues such as a short circuit in the wiring
- Water intrusion or corrosion in the electronic throttle control system
Symptoms of P122C 2015 Chevrolet Silverado
- Check engine light illuminated
- Engine idling irregularly
- Stalling or hesitation during acceleration
- Reduced engine power
- Poor fuel efficiency
How to Fix P122C 2015 Chevrolet Silverado
- Begin by conducting a visual inspection of the intake air flow valve control circuit, checking for any obvious signs of damage or corrosion.
- Use a multimeter to test the continuity and resistance of the circuit components, including the wiring, connectors, and sensors.
- Inspect the intake air flow valve for proper operation and replace it if necessary.
- Check the throttle position sensor for any faults and replace it if needed.
- Clear the DTC and perform a test drive to ensure the issue has been resolved.
Cost to Fix P122C 2015 Chevrolet Silverado
The typical repair costs for addressing a P122C code in a 2015 Chevrolet Silverado can range from $200 to $500, including parts and labor. However, it is essential to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate based on your specific circumstances.
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Frequently Asked Questions about P122C 2015 Chevrolet Silverado Code
1. What does the P122C code mean on a 2015 Chevrolet Silverado?
The P122C code indicates an issue with the Intake Air Flow Valve Control Circuit, specifically a short in the circuit.
2. What are the common symptoms of the P122C code on a Chevy Silverado?
Symptoms may include reduced engine performance, poor fuel economy, rough idling, and the check engine light being illuminated.
3. What causes the P122C code to appear?
Common causes include damaged wiring, a faulty intake air flow valve, a short circuit in the control wiring, or a malfunctioning powertrain control module (PCM).
4. Can I drive my 2015 Chevrolet Silverado with a P122C code?
While the vehicle may still be drivable, it’s not recommended as it can lead to reduced performance and potential engine damage over time.
5. How do I diagnose the P122C code on a Chevy Silverado?
Diagnose it by using an OBDII scanner to confirm the code, visually inspecting the wiring and connectors for damage, testing the intake air flow valve, and checking for shorts in the circuit.
6. How can I fix the P122C code on my 2015 Chevy Silverado?
Repairs may involve replacing damaged wiring, repairing or replacing the intake air flow valve, or reprogramming/updating the PCM if necessary.
7. How much does it cost to repair the P122C code on a Silverado?
Repair costs can vary, but replacing the intake air flow valve typically costs between $150 and $300, plus labor charges if performed by a mechanic.
8. Can a dirty air filter cause the P122C code?
While a dirty air filter itself won’t trigger the P122C code, restricted airflow can contribute to related performance issues. Inspect and replace the air filter if necessary.
9. Is the intake air flow valve the same as the throttle body?
No, the intake air flow valve and throttle body are different components, though they both regulate airflow. The intake air flow valve controls specific airflow needs, often in conjunction with emissions systems.
10. Will clearing the code with an OBDII scanner fix the issue?
Clearing the code may temporarily turn off the check engine light, but it won’t resolve the underlying problem causing the P122C code. Proper diagnosis and repair are required.
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