Powertrain
generic or reserved
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.
SystemPowertrain
Typegeneric or reserved
GroupP3
Range / number4 / 92
Possible causes
- Position sensor failed high
- Wiring or connector fault medium
- Lifter mechanically stuck low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–1500 €
- Estimated time: 1.5–7 h
- Component: position sensor
- Component: engine wiring harness
- Component: ecm
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012