OBD-II code · Powertrain (manufacturer / generic)
P3415 Cylinder 2 Exhaust Valve Control Circuit Low
The engine control module has detected a low-side voltage fault (short to ground) on the cylinder 2 exhaust valve deactivation solenoid circuit. The system disables further cylinder deactivation requests until the circuit is repaired.
Is it safe to drive with P3415?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyWiring shorted to ground
- PossibleSolenoid internal short
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–6 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Cylinder Deactivation Solenoid, Engine Wiring Harness, Ecm
Related codes
- P3423Cylinder 3 Exhaust Valve Control Circuit Low
- P3431Cylinder 4 Exhaust Valve Control Circuit Low
- P3438Cylinder 5 Exhaust Valve Control Circuit Low
- P3446Cylinder 6 Exhaust Valve Control Circuit Low
- P3453Cylinder 5 Exhaust Valve Control Circuit Low
- P3454Cylinder 6 Exhaust Valve Control Circuit Low
- P3455Cylinder 7 Exhaust Valve Control Circuit Low
- P3462Cylinder 8 Exhaust Valve Control Circuit Low
- P3487Cylinder 11 Exhaust Valve Control Circuit Low
- P3412Cylinder 2 Deactivation Stuck Off
- P3413Cylinder 2 Deactivation Stuck On
- P3414Cylinder 2 Exhaust Valve Control Circuit/Open
- P3416Cylinder 2 Exhaust Valve Control Circuit High
- P3417Cylinder 3 Deactivation/Intake Valve Control Circuit/Open
- P3418Cylinder 3 Deactivation/Intake Valve Control Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.