OBD-II code · Powertrain (manufacturer / generic)
P3436 Cylinder 5 Exhaust Valve Control Circuit/Open
The engine control module has detected an open or out-of-range circuit at the cylinder 5 exhaust valve deactivation solenoid. Cylinder 5 cannot be deactivated on the exhaust side until the circuit is restored.
Is it safe to drive with P3436?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelySolenoid coil open
- PossibleWiring or connector open
- Less likelyPin pushed back out of connector body
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
- P3414Cylinder 2 Exhaust Valve Control Circuit/Open
- P3421Cylinder 3 Exhaust Valve Control Circuit/Open
- P3429Cylinder 4 Exhaust Valve Control Circuit/Open
- P3444Cylinder 6 Exhaust Valve Control Circuit/Open
- P3452Cylinder 7 Exhaust Valve Control Circuit/Open
- P3460Cylinder 8 Exhaust Valve Control Circuit/Open
- P3433Cylinder 4 Deactivation Performance
- P3434Cylinder 4 Deactivation Stuck Off
- P3435Cylinder 4 Deactivation Stuck On
- P3437Cylinder 5 Exhaust Valve Control Performance
- P3438Cylinder 5 Exhaust Valve Control Circuit Low
- P3439Cylinder 5 Exhaust Valve Control Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.