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2014 MAZDA MAZDA3

2.0L I4FWDAUTOMATICgas
4 active safety recalls on this vehicle — view recalls
Repairs0Labor473Torque2473Fluid6DTC903Battery0Maintenance0Recalls4
P0523moderate severityPowertrain

Engine Oil Pressure Sensor/Switch High Input

on 2014 Mazda Mazda3 2.0L I4 · FWD

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

  1. Test with mechanical gauge
  2. Test circuit voltage
  3. Test sensor

Repair notes

Replace sensor if actual pressure is normal.

Other Powertrain codes on this vehicle

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