CodesBrandsGuidesTutorials
EN
EnglishEspaƱolDeutsch

P3413: Cylinder 2 Exhaust Valve Control Circuit/Open

P3413 belongs to the exhaust half of the cylinder 2 block and reports an open control circuit for a separately driven exhaust valve actuator. No manufacturer documents this code publicly. The engines known to deactivate cylinder 2, GM's L84 V8 and the 3.6 L V6, switch intake and exhaust valves through one control valve per cylinder and therefore report circuit faults as P3409. The code would only apply to designs with their own control valve for the exhaust side; a GM patent application instead switches both sides with one shared valve and merely staggers them, exhaust first. CARB requires a continuity check for such output components. P3414 to P3416 complete the exhaust group. The driver would see a lamp and lose deactivation.

Medium severity. Can I keep driving?Drive little and gently. If you hear timing chain noise or the oil light comes on, shut off the engine.

Cylinder 2 is numbered according to the manufacturer: check your engine's manual before working on it.

Symptoms

  • Check engine lamp on
  • Cylinder deactivation unavailable

Most likely causes

  • Open wire or connector to the cylinder 2 exhaust actuator
  • Actuator coil open
  • Engine control module driver fault

What to check, in order

Start with the simplest. You can tick off each step.

Good to know

  • Repair difficulty: medium
  • It affects emissions.

What each character of P3413 means

  • P: Powertrain: engine and transmission
  • 3: Generic or manufacturer code, depending on the range
  • 4: Emissions
  • 13: Specific fault in that system

Frequently asked questions

Can I keep driving with code P3413?

Drive little and gently. If you hear timing chain noise or the oil light comes on, shut off the engine.

What causes code P3413?

The most common causes are: open wire or connector to the cylinder 2 exhaust actuator; actuator coil open; engine control module driver fault.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.