P122B 2017 Chevrolet Silverado Code - Intake Air Flow Valve Control Supply Voltage Circuit
Quick Answer
The diagnostic trouble code P122B for a 2017 Chevrolet Silverado refers to an issue with the intake air flow valve control supply voltage circuit. Common causes include Faulty intake air flow valve, Damaged wiring harness or connectors, Issues with the engine control module (ECM). 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 2017 Chevrolet Silverado indicates Intake Air Flow Valve Control Supply Voltage Circuit.
- Common causes
- Common causes include Faulty intake air flow valve, Damaged wiring harness or connectors, Issues with the engine control module (ECM).
- 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 2017 Chevrolet Silverado Description
The diagnostic trouble code P122B for a 2017 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 that supplies voltage to the intake air flow valve control system. The intake air flow valve control system is responsible for regulating the amount of air entering the engine, which is crucial for proper combustion and engine performance.
Common Causes of P122B 2017 Chevrolet Silverado
- Faulty intake air flow valve
- Damaged wiring harness or connectors
- Issues with the engine control module (ECM)
- Corrosion or poor connections in the circuit
- Electrical short circuits
Symptoms of P122B 2017 Chevrolet Silverado
- Reduced engine power
- Rough idling or stalling
- Poor fuel efficiency
- Misfires
- Check Engine Light illuminated
How to Fix P122B 2017 Chevrolet Silverado
- Begin by conducting a thorough visual inspection of the intake air flow valve, wiring harness, and connectors to check for any visible signs of damage or corrosion.
- Use a multimeter to test the voltage and continuity in the circuit to identify any irregularities or open circuits.
- If a faulty intake air flow valve is detected, it will need to be replaced with a new one.
- Repair or replace any damaged wiring harnesses or connectors to ensure proper electrical connections.
- Clear the diagnostic trouble codes from the ECM and perform a test drive to ensure that the issue has been resolved.
Cost to Fix P122B 2017 Chevrolet Silverado
The typical repair costs for addressing the P122B code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. However, on average, the cost of parts for replacing the intake air flow valve or repairing the wiring harness/connectors can range from $100 to $300. Labor costs can add an additional $100 to $200, bringing the total repair cost to approximately $200 to $500. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, labor rates, and the extent of the repair needed. It is advisable to consult with a qualified mechanic or repair shop for a more accurate cost estimate.
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Frequently Asked Questions about P122B 2017 Chevrolet Silverado Code
What does the OBDII code P122B mean for a 2017 Chevrolet Silverado?
1. P122B indicates an issue with the Intake Air Flow Valve Control Supply Voltage Circuit, which monitors the voltage for the intake air flow valve control system. 2.
What are common symptoms of the P122B code?
Common symptoms include reduced engine performance, poor acceleration, an illuminated check engine light, and, in some cases, limp mode activation. 3.
What causes the P122B code to appear?
The code can be caused by a faulty intake air flow valve, damaged wiring, corroded connectors, low system voltage, or a malfunctioning engine control module (ECM). 4.
Can I drive my 2017 Chevrolet Silverado with the P122B code?
Driving with this code is not recommended as it can lead to reduced engine efficiency, potential stalling, and further damage to the intake system. 5.
How can I diagnose the P122B code?
Start by using a scan tool to confirm the code, then inspect the intake air flow valve, wiring, connectors, and voltage supply for damage or faults. 6.
What repairs can fix the P122B code?
Repairs may include replacing the intake air flow valve, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary. 7.
How much does it cost to fix the P122B code?
Repair costs range from $100 to $500 depending on the specific issue, with labor and part prices varying by location and the extent of the problem. 8.
Can a dirty air filter cause a P122B code?
No, a dirty air filter is unlikely to directly cause this code, although it may contribute to airflow issues. The problem is more likely related to the valve control circuit. 9.
Will clearing the code with a scan tool fix the P122B issue?
Clearing the code might temporarily turn off the check engine light, but it won’t resolve the underlying issue causing the code to appear. 10.
Is the P122B code related to the throttle body?
While the code specifically refers to the intake air flow valve, throttle body issues can sometimes contribute to airflow problems, so they should be inspected as part of the diagnostic process.
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