Powertrain
generic or reserved
P3493
Cylinder Deactivation Position Sensor Bank 2
The engine control module has detected an implausible signal from the bank 2 cylinder deactivation position sensor. The sensor confirms switching lifter position; without a valid signal the module cannot safely command deactivation transitions on bank 2.
SystemPowertrain
Typegeneric or reserved
GroupP3
Range / number4 / 93
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