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Home/DTC Codes/Fiat/Cronos/2018-2025 1.0L I4 Flex Firefly/P0520
P0520

Engine Oil Pressure Sensor/Switch Circuit

2018-2025 Fiat Cronos 1.0L I4 Flex Firefly

High SeverityPowertrainGeneric (SAE)

Description

Malfunction in the engine oil pressure sensor circuit.

Symptoms

  • Check Engine Light
  • Oil pressure warning light on
  • Gauge reading incorrect

Common Causes

  • Faulty oil pressure sensor/switch
  • Wiring damage
  • Low oil level
  • Low actual oil pressure

Diagnostic Steps

  1. CHECK OIL LEVEL FIRST
  2. Test oil pressure with mechanical gauge
  3. Test sensor resistance
  4. Inspect wiring
  5. Check oil pump condition

Repair Notes

ALWAYS verify actual oil pressure with mechanical gauge first. Low oil pressure can destroy an engine.

Related Codes

P0521Engine Oil Pressure Sensor/Switch Range/PerformanceP0522Engine Oil Pressure Sensor/Switch Low InputP0523Engine Oil Pressure Sensor/Switch High InputP0524Engine Oil Pressure Too Low

Other Powertrain Codes

P0520 on Other Vehicles

Fiat 124 Spider

2017-2020 1.4L I4 Turbo

Fiat 126p Maluch

1973-2000 0.65L I2 Air-Cooled

Fiat 126p Maluch

1987-2000 0.7L I2 Air-Cooled

Fiat 500

2012-2019 1.4L I4

Fiat 500 Abarth

2012-2019 1.4L I4 Turbo

Fiat 500 BR

2011-2020 1.4L I4 Flex Fire Evo

Fiat 500 PL

2007-2025 1.0L I3 Hybrid FireFly 70

Fiat 500 PL

2007-2025 1.2L I4 Fire 69

Common Questions

What does code P0520 mean on a 2018-2025 Fiat Cronos?

P0520 stands for "Engine Oil Pressure Sensor/Switch Circuit". Malfunction in the engine oil pressure sensor circuit.

What are the symptoms of P0520 on a Fiat Cronos?

Common symptoms of P0520 include: Check Engine Light, Oil pressure warning light on, Gauge reading incorrect.

What causes P0520 on a 2018-2025 Fiat Cronos?

Common causes of P0520 include: Faulty oil pressure sensor/switch, Wiring damage, Low oil level, Low actual oil pressure.

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