LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Controls - Powertrain DTC Charts & Descriptions (Diesel)) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> DTC P204B: REDUCTANT Pressure Sensor Circuit Range/Performance

DTC P204B: REDUCTANT Pressure Sensor Circuit Range/Performance

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
DTC P204B: REDUCTANT PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE

Description:  The PCM carries out a plausibility check on the reductant pressure sensor during startup after a successful purge cycle, when the reductant pressure line has been drained. This DTC sets when the reductant pressure sensor signal exceeds 30 kPa (4.4 psi).
Possible Causes: 
  • Slow responding reductant pressure sensor
  • Damaged reductant pressure sensor
Diagnostic Aids:  Diagnose and repair all circuit DTCs before diagnosing DTC P204B.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST RF .