The P3473: Cylinder 10 Deactivation/Intake Valve Control Circuit/Open refers to an open circuit in the intake valve control system for Cylinder 10. This could be caused by faulty wiring, poor electrical connections, or a malfunctioning intake valve control solenoid. The intake valve control system regulates airflow into Cylinder 10, and an open circuit can prevent the valve from functioning correctly, leading to engine performance issues.
P3473 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P3473: Cylinder 10 Deactivation/Intake Valve Control Circuit/Open |
| Is it serious? | Yes, this can lead to engine misfires, rough idling, and reduced fuel efficiency. |
| Possible causes | – Open circuit in the intake valve control for Cylinder 10 – Faulty wiring or connections – Malfunctioning intake valve control solenoid |
| How to diagnose? | – Inspect the intake valve control circuit for Cylinder 10 – Check wiring and connections for continuity – Test the intake valve control solenoid |
P3473 Meaning
The P3473: Cylinder 10 Deactivation/Intake Valve Control Circuit/Open code indicates that the intake valve control circuit for Cylinder 10 is not complete, meaning there is an electrical interruption. This can be due to damaged wiring, poor connections, or a faulty intake valve control solenoid. The intake valve is responsible for regulating airflow into Cylinder 10, and an open circuit can prevent the valve from functioning, leading to poor engine performance like misfires and rough idling.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for any additional related codes that might provide further insight into the Cylinder 10 intake valve control circuit issues. | OBD-II Scanner |
| Inspect Intake Valve Control Circuit | Visually inspect the intake valve control circuit for Cylinder 10. Look for damaged, disconnected, or corroded wiring and connectors. Repair or replace as necessary. | Flashlight, Multimeter |
| Check Wiring Continuity | Use a multimeter to check for continuity in the intake valve control circuit wiring for Cylinder 10. Ensure there are no open circuits or breaks in the wiring. | Multimeter, Wiring Diagram |
| Test Intake Valve Control Solenoid | Test the intake valve control solenoid for Cylinder 10 to ensure it is functioning correctly. Measure resistance and compare to manufacturer specifications. Replace if necessary. | Multimeter, Mechanic Tools |
| Repair or Replace Faulty Components | Repair or replace any faulty wiring, connectors, or solenoids identified during diagnostics. Ensure proper installation and functionality after repairs. | Mechanic Tools |
| Clear the Code and Test Drive | After completing repairs, clear the fault code using an OBD-II scanner. Take the vehicle for a test drive to ensure the intake valve control system for Cylinder 10 is functioning correctly. | OBD-II Scanner, Vehicle |
| Recheck for Codes | After the test drive, re-scan the vehicle to ensure the P3473 code does not return. If the code reappears, further diagnostics may be necessary. | OBD-II Scanner |
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