LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 753 (Engine Controls - Powertrain DTC Charts & Descriptions - CNG, Flex-Fuel & Gasoline) >> Diagnostic Trouble Code (DTC) Charts >> P0622 - Generator Field Terminal Circuit Failure

P0622 - Generator Field Terminal Circuit Failure

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P0622 - GENERATOR FIELD TERMINAL CIRCUIT FAILURE

Description:  The PCM monitors generator load from the generator/regulator in the form of frequency. The frequency range is determined by the temperature of the voltage regulator, where 97% indicates full load, and below 6% indicates no load.
Possible Causes: 
  • GEN-MON circuit short to GND.
  • GEN-MON circuit short to B+.
  • GEN-MON circuit open.
  • GEN-COM circuit short to GND.
  • GEN-COM circuit short to B+.
  • GEN-COM circuit open.
  • ILC circuit short to GND.
  • ILC circuit short to B+.
  • ILC circuit open.
  • ALI circuit short to GND.
  • ALI circuit short to B+.
  • ALI circuit open.
  • Battery-sense circuit open.
  • Generator drive mechanism.
  • Damaged generator/regulator assembly.
  • Damaged PCM.
Diagnostic Aids:  Verify the battery voltage is 14.5 volts. Verify the generator/regulator has the correct part number.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to HY: Generator/Regulator System STEP 1
scientia non olet · About LEMON Manuals