Error code

OBD2 P3420

OBD2P3420
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Cylinder 3 Deactivation/lntake Valve Control Circuit High.

Severity

moderateCan drive, but performance may be affected and further damage could occur.

Summary

The P3420 code indicates an issue with the intake valve control circuit in cylinder 3, specifically that it is reading a high signal when it should not be.

Common Causes

  • Faulty intake valve control solenoid for cylinder 3
  • Electrical issues such as short circuits or open circuits in the wiring harness

Fixes

  • Replace the faulty intake valve control solenoid for cylinder 3.

FAQ

What does P3420 mean?

P3420 indicates a problem with the intake valve control circuit in cylinder 3, typically showing an abnormally high signal.

How do I fix P3420?

The most common solution is to replace the faulty intake valve control solenoid for cylinder 3. Consult a professional mechanic or use diagnostic tools like Torque Pro to identify and address the issue.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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