P0523moderate severityPowertrain
Engine Oil Pressure Sensor/Switch High Input
on 2023 BMW i7 M70 Dual Motor AWD · AWD
What this code means
High voltage from oil pressure sensor.
Symptoms
- Very high oil pressure reading
- Warning light on
Common causes
- Open circuit
- Short to power
- Faulty sensor
Diagnostic steps
- Test with mechanical gauge
- Test circuit voltage
- Test sensor
Repair notes
Replace sensor if actual pressure is normal.
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