P123A FORD - BARO Sensor / TC/SC Boost Pressure Sensor 'A' Correlation

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Barometric Pressure (BARO) Sensor
  • Barometric Pressure (BARO) Sensor harness is open or shorted
  • Barometric Pressure (BARO) Sensor circuit poor electrical connection
  • Faulty Supercharger (SC) Boost Pressure Sensor 'A'
  • Supercharger (SC) Boost Pressure Sensor 'A' harness is open or shorted
  • Supercharger (SC) Boost Pressure Sensor 'A' circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P123a Ford Description

The Powertrain Control Module (PCM) monitors the Barometric Pressure (BARO) Sensor and Turbocharger (TC) / Supercharger (SC) Boost Pressure Sensor 'A'. The PCM sets the OBDII code when the Barometric Pressure (BARO) Sensor and Turbocharger (TC) / Supercharger (SC) Boost Pressure Sensor 'A' is not to factory specifications.
OBDII Code P123a Ford - BARO Sensor / TC/SC Boost Pressure Sensor 'A' Correlation - AutoCodes.com

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