The P3473 OBD-II code indicates a problem with the intake valve control circuit for cylinder number 10 in vehicles equipped with a cylinder deactivation system. This system is designed to enhance fuel efficiency by shutting down certain cylinders during low power requirements, such as when cruising or idling.
What Does the P3473 Code Mean?
The P3473 code is triggered when the Engine Control Module (ECM) detects that the intake valve for cylinder 10 is not functioning as intended. This can mean that the valve is stuck open or closed, or there is an issue in the control circuit that prevents the valve from operating properly.
What Causes the P3473 Code?
Several factors can lead to the P3473 code being set, including:
- Low engine oil levels
- Failure of the Powertrain Control Module (PCM)
- Malfunction of the variable valve timing (VVT) solenoid
- Wiring issues in the intake valve control circuit
What Are the Symptoms of the P3473 Code?
Drivers may notice several symptoms when the P3473 code is present, such as:
- Decreased engine performance
- Increased fuel consumption
How Serious Is the P3473 Code?
The P3473 code is considered urgent. It indicates a significant malfunction that can lead to severe engine damage or create safety hazards for the driver and passengers. Immediate attention is recommended to prevent further complications.
How to Diagnose the P3473 Code
A proper diagnosis begins with using an OBD-II scanner to confirm the P3473 code. Technicians should then:
- Inspect the engine oil level and condition
- Check the PCM for faults
- Examine the variable valve timing solenoid
- Inspect wiring and connectors for damage or corrosion
Common Repairs for the P3473 Code
Common repairs to address the P3473 code include:
- Refilling or replacing engine oil
- Replacing a faulty PCM
- Repairing or replacing the VVT solenoid
- Fixing any wiring issues in the control circuit
How Much Does It Cost to Fix the P3473 Code?
The cost of repairs for the P3473 code can vary widely depending on the underlying issue:
- Simple fixes like an oil change may cost $50-$100.
- Replacing a VVT solenoid can range from $150-$400.
- PCM replacement can be more expensive, often exceeding $1,000.
Can I Fix the P3473 Code Myself?
While some basic checks, such as oil level inspection, can be performed by car owners, diagnosing and repairing the P3473 code often requires specialized knowledge and tools. If you are not experienced in automotive repair, it is advisable to seek professional assistance to ensure the issue is resolved correctly.
