P122B 2016 Chevrolet Silverado Code - Intake Air Flow Valve Control Supply Voltage Circuit
Quick Answer
The P122B diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado refers to an issue with the intake air flow valve control supply voltage circuit. Common causes include Faulty intake air flow valve control, Wiring issues or damaged connectors in the supply voltage circuit, Blown fuse related to the intake air flow valve control system. 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
- P122B 2016 Chevrolet Silverado indicates Intake Air Flow Valve Control Supply Voltage Circuit.
- Common causes
- Common causes include Faulty intake air flow valve control, Wiring issues or damaged connectors in the supply voltage circuit, Blown fuse related to the intake air flow valve control system.
- 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 P122B 2016 Chevrolet Silverado Description
The P122B diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado refers to an issue with the intake air flow valve control supply voltage circuit. This code indicates that there is a problem with the electrical circuit responsible for supplying power to the intake air flow valve control system. The intake air flow valve control system plays a crucial role in regulating the amount of air entering the engine, which is essential for proper combustion and engine performance.
Common Causes of P122B 2016 Chevrolet Silverado
- Faulty intake air flow valve control
- Wiring issues or damaged connectors in the supply voltage circuit
- Blown fuse related to the intake air flow valve control system
- Issues with the engine control module (ECM) or powertrain control module (PCM)
- Electrical system malfunctions
Symptoms of P122B 2016 Chevrolet Silverado
- Rough idling
- Stalling
- Hesitation during acceleration
- Lack of power
- Illumination of the Check Engine Light
How to Fix P122B 2016 Chevrolet Silverado
- Begin by conducting a thorough inspection of the intake air flow valve control system, including the valve itself and the associated wiring and connectors.
- Check for any blown fuses related to the intake air flow valve control system and replace them if necessary.
- Test the voltage in the supply voltage circuit to ensure that it is within the manufacturer's specified range.
- If the issue persists, consider replacing the intake air flow valve control unit or repairing any damaged wiring or connectors.
- Clear the DTC and test drive the vehicle to ensure that the issue has been resolved.
Cost to Fix P122B 2016 Chevrolet Silverado
The cost of repairing a P122B code on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, you can expect to pay anywhere from $100 to $500 for parts and labor. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Additionally, the cost may increase if additional components need to be replaced or if there are underlying electrical issues that require further diagnosis and repair.
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Frequently Asked Questions about P122B 2016 Chevrolet Silverado Code
1. What does the OBDII code P122B mean on a 2016 Chevrolet Silverado?
The P122B code indicates an issue with the Intake Air Flow Valve Control Supply Voltage Circuit, suggesting a problem with the electrical voltage supply to the intake air flow valve.
2. What are the common symptoms of the P122B code in a 2016 Chevrolet Silverado?
Symptoms may include reduced engine performance, poor acceleration, illuminated check engine light, and in some cases, erratic idling.
3. What causes the P122B code on a 2016 Chevrolet Silverado?
Common causes include a faulty intake air flow valve, damaged wiring or connectors in the circuit, a blown fuse, or a malfunctioning electronic control module (ECM).
4. Can I drive my 2016 Chevrolet Silverado with the P122B code?
While it may still be drivable, it’s not recommended as the vehicle may experience reduced performance and could cause further damage to the engine or related components.
5. How is the P122B code diagnosed in a 2016 Chevrolet Silverado?
A mechanic will use a scan tool to confirm the code, inspect the intake air flow valve and its wiring, check for voltage and ground at the valve, and test the ECM for proper operation.
6. How do I fix the P122B code on my 2016 Chevrolet Silverado?
Repairs may involve replacing the intake air flow valve, repairing or replacing damaged wiring or connectors, replacing a blown fuse, or reprogramming or replacing the ECM.
7. How much does it cost to repair the P122B code on a 2016 Chevrolet Silverado?
Repair costs vary, but replacing the intake air flow valve typically costs $150–$400, while wiring repairs or ECM replacement may cost more depending on labor and parts.
8. Can a dirty air filter cause the P122B code on a 2016 Chevrolet Silverado?
While unlikely, a severely clogged air filter might contribute to airflow issues, but this code specifically points to an electrical problem with the intake air flow valve circuit.
9. Is the P122B code common on a 2016 Chevrolet Silverado?
It’s not a common code but can occur due to age-related wear or electrical issues within the intake air flow valve circuit.
10. Can I reset the P122B code without repairing the issue?
You can clear the code with a scan tool, but this will not resolve the underlying problem, and the code is likely to return if the issue isn’t fixed.
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