DTC P1246: Generator Load Input Failed

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.

P1246 - GENERATOR LOAD INPUT FAILED

Description:	The powertrain control module (PCM) monitors the 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 a full load, and less than 6% indicates no load.
Possible Causes:	GENLI circuit shorted to PWR or GND GENLI circuit open GENRC circuit shorted to PWR or GND GENRC circuit open ILC circuit shorted to PWR or GND ILC 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 HY1.