Powertrain
generic or reserved
P3494
Cylinder Deactivation Position Sensor Bank 1 Range/Performance
The engine control module has detected the bank 1 cylinder deactivation position sensor signal is within electrical limits but does not change as expected during commanded deactivation transitions. Mechanical drag, sensor drift or contamination is the typical cause.
SystemPowertrain
Typegeneric or reserved
GroupP3
Range / number4 / 94
Possible causes
- Sensor drift or aging high
- Lifter mechanical drag medium
- Sensor face contamination low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–1500 €
- Estimated time: 1.5–7 h
- Component: position sensor
- Component: lifter
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012