Powertrain
generic or reserved
P3472
Cylinder Deactivation Hydraulic Circuit Bank 2 Low
The engine control module has detected low oil pressure in the bank 2 hydraulic circuit responsible for cylinder deactivation. Below the calibrated threshold the switching lifters cannot collapse and cylinder deactivation on bank 2 is disabled until pressure recovers.
SystemPowertrain
Typegeneric or reserved
GroupP3
Range / number4 / 72
Possible causes
- Low engine oil level high
- Oil pump worn or weak medium
- Oil pressure switch reads low medium
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–1800 €
- Estimated time: 1.5–8 h
- Component: oil pump
- Component: oil control valve
- Component: oil pressure switch
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012