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Home/DTC Codes/Fiat/Cronos/2018-2025 1.3L I4 Flex Firefly/C0087
C0087

Master Cylinder Pressure Sensor Circuit High

2018-2025 Fiat Cronos 1.3L I4 Flex Firefly

Moderate SeverityChassisGeneric (SAE)

Description

High voltage from the master cylinder brake pressure sensor circuit.

Symptoms

  • ABS light on
  • Brake system warning
  • Stability control fault
  • False high-pressure reading

Common Causes

  • Signal wire open or shorted to voltage
  • Faulty pressure sensor
  • Connector corrosion
  • Reference voltage issue

Diagnostic Steps

  1. Test sensor signal voltage with brake released and applied
  2. Check for open circuits in signal wire
  3. Inspect connector for corrosion
  4. Verify reference voltage at sensor

Repair Notes

Repair wiring or replace brake pressure sensor.

Related Codes

C0085Brake Pressure Sensor CircuitC0086Master Cylinder Pressure Sensor Circuit Low

Other Chassis Codes

C0087 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 C0087 mean on a 2018-2025 Fiat Cronos?

C0087 stands for "Master Cylinder Pressure Sensor Circuit High". High voltage from the master cylinder brake pressure sensor circuit.

What are the symptoms of C0087 on a Fiat Cronos?

Common symptoms of C0087 include: ABS light on, Brake system warning, Stability control fault, False high-pressure reading.

What causes C0087 on a 2018-2025 Fiat Cronos?

Common causes of C0087 include: Signal wire open or shorted to voltage, Faulty pressure sensor, Connector corrosion, Reference voltage issue.

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