Circuit Description

The PCM output "L" terminal to alternator determines when generator will be turned off. It is on under all normal vehicle operating conditions except during low RPM conditions. Generator is turned off during low RPM conditions to remove excess load from engine. The generator warning light will illuminate anytime ignition is on and engine is not running. The warning light will turn off after engine is running and generator is putting out the desired amperage. DTC will set when engine is running, generator warning light is on, and generator "L" terminal voltage is low while PCM is commanding the generator on and condition is present for more than 10 seconds.