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Home >> Ford >> 2009 >> Taurus X SEL, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P1409: - Exhaust Gas RECIRCULATION (EGR) Vacuum Regulator Solenoid Circuit

DTC P1409: - Exhaust Gas RECIRCULATION (EGR) Vacuum Regulator Solenoid Circuit

DTC P1409: - EXHAUST GAS RECIRCULATION (EGR) VACUUM REGULATOR SOLENOID CIRCUIT

Description:  This test checks the electrical function of the EGR vacuum regulator solenoid. The test fails when the EVR circuit voltage is either too high or too low when compared to the expected voltage range. The EGR system must be enabled for the test to be completed.
Possible Causes: 
  • EVR circuit open
  • EVR circuit short to voltage or ground
  • VPWR open to EGR vacuum regulator solenoid
  • Damaged EGR vacuum regulator solenoid
Diagnostic Aids:  The EGR vacuum regulator solenoid resistance is between 26 and 40 ohms.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Crown Victoria,
E-Series,
Explorer 4.0L,
Explorer Sport
Trac 4.0L,
F-150 4.6L 2V,
F-Super Duty
6.8L,
Grand Marquis,
Mountaineer
4.0L,
Mustang 4.0L,
Mustang 5.4L,
Town Car		 GO to Pinpoint Test HH .
All others GO to Pinpoint Test HE .
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