P3443 2017 Chevrolet Silverado Code - Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage
Quick Answer
The diagnostic trouble code P3443 for a 2017 Chevrolet Silverado specifically refers to an issue with the Cylinder 6 Deactivation Solenoid Valve Control Circuit experiencing low voltage. Common causes include Faulty Solenoid Valve: The Cylinder 6 Deactivation Solenoid Valve may be malfunctioning, causing low voltage in the control circuit, Wiring Harness Issues: Damaged or corroded wiring in the control circuit can lead to voltage irregularities and trigger the P3443 code, Defective PCM: A problem with the Powertrain Control Module (PCM) responsible for controlling the solenoid valve circuit can cause low voltage issues. 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
- P3443 2017 Chevrolet Silverado indicates Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty Solenoid Valve: The Cylinder 6 Deactivation Solenoid Valve may be malfunctioning, causing low voltage in the control circuit, Wiring Harness Issues: Damaged or corroded wiring in the control circuit can lead to voltage irregularities and trigger the P3443 code, Defective PCM: A problem with the Powertrain Control Module (PCM) responsible for controlling the solenoid valve circuit can cause low voltage issues.
- 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 P3443 2017 Chevrolet Silverado Description
The diagnostic trouble code P3443 for a 2017 Chevrolet Silverado specifically refers to an issue with the Cylinder 6 Deactivation Solenoid Valve Control Circuit experiencing low voltage. In vehicles equipped with cylinder deactivation technology, also known as Active Fuel Management (AFM), certain cylinders can be deactivated during light load conditions to improve fuel efficiency. The solenoid valve controls this process by regulating oil flow to the lifters that deactivate the cylinders.
Common Causes of P3443 2017 Chevrolet Silverado
- Faulty Solenoid Valve: The Cylinder 6 Deactivation Solenoid Valve may be malfunctioning, causing low voltage in the control circuit.
- Wiring Harness Issues: Damaged or corroded wiring in the control circuit can lead to voltage irregularities and trigger the P3443 code.
- Defective PCM: A problem with the Powertrain Control Module (PCM) responsible for controlling the solenoid valve circuit can cause low voltage issues.
- Poor Electrical Connections: Loose or poor electrical connections in the circuit can disrupt the flow of voltage to the solenoid valve, triggering the code.
- Oil Pressure Problems: Issues with oil pressure can impact the operation of the solenoid valve, leading to low voltage conditions.
Symptoms of P3443 2017 Chevrolet Silverado
- Check Engine Light: The most obvious symptom of the P3443 code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Engine Performance: The engine may exhibit decreased power and performance, especially during acceleration.
- Poor Fuel Efficiency: Drivers may notice a drop in fuel efficiency as the engine struggles to operate efficiently with cylinder deactivation issues.
- Rough Idle: The engine may run rough or have an irregular idle when the P3443 code is present.
- Engine Misfires: Cylinder deactivation problems can lead to engine misfires, causing a noticeable lack of smooth operation.
How to Fix P3443 2017 Chevrolet Silverado
- Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble code and perform a thorough inspection of the Cylinder 6 Deactivation Solenoid Valve control circuit.
- Test Solenoid Valve: Check the solenoid valve for proper operation and resistance levels to determine if it needs replacement.
- Inspect Wiring Harness: Examine the wiring harness for any damage, corrosion, or loose connections that may be causing the low voltage condition.
- Check PCM: Verify the PCM's functionality by testing other components or swapping it with a known good unit to rule out PCM issues.
- Repair or Replace Components: Depending on the findings, repair or replace the faulty solenoid valve, wiring harness, or PCM to resolve the P3443 code.
Cost to Fix P3443 2017 Chevrolet Silverado
The typical repair costs for addressing the P3443 code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue and the parts and labor required for the repair. In general, replacing the Cylinder 6 Deactivation Solenoid Valve or repairing the wiring harness may cost between $200 to $500, including parts and labor. If the PCM needs replacement, the cost can range from $500 to $1000 or more, depending on the specific PCM model and programming requirements.
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Frequently Asked Questions about P3443 2017 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P3443 in a 2017 Chevrolet Silverado?
The common symptoms of OBDII code P3443, indicating a Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage issue in a 2017 Chevrolet Silverado, include reduced engine performance, rough idling, and potential engine misfires.
2. What could cause the Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage issue in a 2017 Chevrolet Silverado?
Possible causes of the P3443 code in a 2017 Chevrolet Silverado include a faulty cylinder 6 deactivation solenoid valve, damaged wiring or connectors in the control circuit, or issues with the engine control module.
3. How can I diagnose the Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage problem in my 2017 Chevrolet Silverado?
Diagnosing the P3443 code involves using an OBDII scanner to retrieve the specific fault code, inspecting the wiring and connectors related to the solenoid valve, and testing the solenoid valve itself for proper functionality.
4. Can I continue to drive my 2017 Chevrolet Silverado with OBDII code P3443?
It is not recommended to drive your vehicle with the P3443 code present, as it can lead to further engine issues and potential damage. It's best to address the underlying problem promptly.
5. How can I repair the Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage issue in my 2017 Chevrolet Silverado?
Repair options for the P3443 code may include replacing the faulty cylinder 6 deactivation solenoid valve, repairing or replacing damaged wiring or connectors, or resetting the engine control module after resolving the issue.
6. Is the OBDII code P3443 in a 2017 Chevrolet Silverado a common problem?
While the P3443 code specifically related to the Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage may not be extremely common, issues with solenoid valves and control circuits can occur in vehicles, including the 2017 Chevrolet Silverado.
7. Can a DIY enthusiast fix the P3443 code issue in a 2017 Chevrolet Silverado?
Depending on your skill level and access to tools, a knowledgeable DIY enthusiast may be able to address the P3443 code by following diagnostic procedures and performing the necessary repairs, such as replacing the solenoid valve or repairing wiring.
8. Will resetting the OBDII code P3443 in my 2017 Chevrolet Silverado make it go away permanently?
Simply resetting the P3443 code without addressing the underlying issue will not make it disappear permanently. It's crucial to diagnose the problem, make the necessary repairs, and ensure the fault does not reoccur before resetting the code.
9. How much does it cost to fix the Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage issue in a 2017 Chevrolet Silverado?
The cost of fixing the P3443 code in a 2017 Chevrolet Silverado can vary depending on the specific cause of the problem, parts and labor costs, and whether you choose to address the issue yourself or take your vehicle to a professional mechanic.
10. Can the OBDII code P3443 in a 2017 Chevrolet Silverado cause long-term damage if left unresolved?
Leaving the P3443 code unaddressed in your 2017 Chevrolet Silverado can potentially lead to more severe engine issues, reduced fuel efficiency, and long-term damage if the underlying problem continues to affect the vehicle's performance.
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