Powertrain
generic / SAE
P252D
Engine Oil Quality Sensor Circuit High
Sensor signal voltage above the upper limit — typically a short to reference voltage or an open signal return.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 2D
Possible causes
- Signal wire shorted to reference voltage high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–500 €
- Estimated time: 0.5–2 h
- Component: oil quality sensor
- Component: sensor wiring
Sources
References
sae:J2012