OBD-II code · Powertrain (manufacturer / generic)
P3468 Cylinder Deactivation Hydraulic Circuit Bank 1 Low
The engine control module has detected low oil pressure in the bank 1 hydraulic circuit responsible for cylinder deactivation. Below threshold pressure the lifters cannot collapse and the system disables further deactivation requests on bank 1.
Is it safe to drive with P3468?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyLow engine oil level
- PossibleOil pump worn or weak
- PossibleOil pressure switch reads low
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–8 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Oil Pump, Oil Control Valve, Oil Pressure Switch
Related codes
- P3472Cylinder Deactivation Hydraulic Circuit Bank 2 Low
- P3465Cylinder 8 Deactivation
- P3466Cylinder Deactivation Hydraulic Circuit Bank 1 Open
- P3467Cylinder Deactivation Hydraulic Circuit Bank 1 Performance
- P3469Cylinder Deactivation Hydraulic Circuit Bank 1 High
- P3470Cylinder Deactivation Hydraulic Circuit Bank 2 Open
- P3471Cylinder Deactivation Hydraulic Circuit Bank 2 Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.