P204B GMC - Reductant Pressure Sensor Circuit Range/Performance

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)

P204b Gmc 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 P204b Gmc - Reductant Pressure Sensor Circuit Range/Performance - AutoCodes.com

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P204B GMC Comments

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