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Home >> Saturn >> 1996 >> SC2 Automatic, MP6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Trouble Codes >> DTC P0405 - EGR System Circuit Open/Short >> Diagnostic Procedures

Diagnostic Procedures

  1. Normal closed EGR valve position feedback voltage should be between 0.2-1.5 volts. This value may change with temperature.
  2. A voltage of less than .2 volt indicates a problem with the position feedback circuit. A voltage of greater than 1.5 volts could be caused by a position feedback circuit problem, a valve stuck open or a solenoid being energized.
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