P1246 - Alternator Load Input Failed
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.
Battery-sense circuit open.
Generator drive mechanism.
Damaged generator/regulator assembly.
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.
Verify the battery voltage is 14.5 volts.
Verify the generator/regulator has the correct part number.
I did find a TSB about this issue for the 2000-2001 but not on the 2002 model year it is possible you may actually have a 2001 but made mid year and classified as a 2002
Could you please provide me with the build date ( MO/YR) from the drivers door sticker.
Tuesday, October 16th, 2012 AT 5:44 PM