OBD-II code · Powertrain (manufacturer / generic)
P3454 Cylinder 6 Exhaust Valve Control Circuit Low
The engine control module has detected a low voltage condition in the control circuit of the cylinder 6 exhaust valve deactivation solenoid. A short to ground or low-side driver fault prevents proper actuation of the exhaust valve during cylinder deactivation events on cylinder 6.
Is it safe to drive with P3454?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelySolenoid or wiring shorted to ground
- PossibleECM low-side driver failed
- Less likelyConnector corrosion or pin damage
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
- P3415Cylinder 2 Exhaust Valve Control Circuit Low
- 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
- P3455Cylinder 7 Exhaust Valve Control Circuit Low
- P3462Cylinder 8 Exhaust Valve Control Circuit Low
- P3487Cylinder 11 Exhaust Valve Control Circuit Low
- P3451Cylinder 7 Deactivation/Intake Valve Control Circuit High
- P3452Cylinder 7 Exhaust Valve Control Circuit/Open
- P3456Cylinder 8 Deactivation/Intake Valve Control Circuit/Open
- P3457Cylinder 7 Deactivation
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.