Powertrain
generic or reserved
P3406
Cylinder 1 Deactivation Stuck Off
The engine control module has detected that cylinder 1 deactivation hardware is stuck in the off state. The deactivation cannot be released when full-cylinder operation is commanded.
SystemPowertrain
Typegeneric or reserved
GroupP3
Range / number4 / 06
Possible causes
- Lifter stuck collapsed high
- Solenoid stuck medium
- Carbon or debris buildup preventing free movement low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 300–2000 €
- Estimated time: 2–10 h
- Component: cylinder deactivation solenoid
- Component: lifter
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012