P204A - Reductant Pressure Sensor Circuit

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

  • Faulty Reductant Pressure Sensor
  • Reductant Pressure Sensor harness is open or shorted
  • Reductant Pressure Sensor circuit poor electrical connection

Possible symptoms

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

P204a Description

The reductant pressure sensor provides feedback to Powertrain Control Module (PCM), which regulates system pressure by controlling pump speed using pulse width modulation. The reductant pressure sensor is integral to reductant pump assembly.
OBDII Code P204a - Reductant Pressure Sensor Circuit - AutoCodes.com

P204A Information for specific makes

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P204A Comments

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