Error code

OBD2 P3403

OBD2P3403
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Cylinder 1 Deactivation/lntake Valve Control Circuit Low.

Severity

moderateCan drive, but performance issues may occur.

Summary

P3403 indicates an issue with the intake valve control circuit in cylinder 1, which is part of the engine's manifold.

Common Causes

  • Faulty intake valve control solenoid for cylinder 1
  • Loose or corroded electrical connectors

Fixes

  • Replace the faulty intake valve control solenoid for cylinder 1.

FAQ

What does P3403 mean?

P3403 indicates a low signal issue in the intake valve control circuit of cylinder 1.

How do I fix P3403?

The most common solution is to replace the faulty intake valve control solenoid for cylinder 1.

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