OBD-II code · Powertrain (manufacturer / generic)
P3492 Cylinder Deactivation Position Sensor Bank 1
The engine control module has detected an implausible signal from the bank 1 cylinder deactivation position sensor. Modern systems use a Hall-effect or inductive sensor to confirm switching lifter position; a fault prevents safe deactivation transitions.
Is it safe to drive with P3492?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyPosition sensor failed
- PossibleWiring or connector fault
- Less likelyLifter mechanically stuck
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–7 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Position Sensor, Engine Wiring Harness, Ecm
Related codes
- P3493Cylinder Deactivation Position Sensor Bank 2
- P3489Cylinder 11 Deactivation
- P3490Cylinder Deactivation System Performance Bank 1
- P3491Cylinder Deactivation System Performance Bank 2
- P3494Cylinder Deactivation Position Sensor Bank 1 Range/Performance
- P3495Cylinder Deactivation Position Sensor Bank 2 Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.