P1246 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 solution
Verify the battery voltage is 14.5 volts. Verify the generator/regulator has the correct part number.P1632The car has Ford's smart charge system. The battery charge is controlled by the computer in the car.
Has the car got the right type of battery fitted? It cannot be fitted
with the ordinary type, must be silver calcium. It cannot be charged on
the car with an ordinary battery charger and you cannot use jump leads
or booster pack - well you can but....
You will need to take it to Ford to reset the system.
There have been problems with the plug, which has 3 small wires, breaking at the alternator.
Also, there is a temperature sensor for the battery and this may be faulty.