DTC B1487: Generator "L" Terminal Low With Engine Running: Description

DTC B1487 will set when a fault exists that is causing generator "L" terminal to read LOW continuously while engine is running. This DTC will be set when engine is running, PCM sends an "engine is running" class 2 data message, and PCM does not send an "L" terminal high" class 2 data message for 30 seconds after vehicle has started. When DTC B1487 is set, VOLTS indicator will illuminate. DTC B1487 can be cleared using scan tool, or history DTC will disappear after 100 ignition cycles if fault conditions do not reoccur.

DTC B1487 will set when a fault exists that is causing generator "L" terminal to read LOW continuously while engine is running. This DTC will be set when engine is running, PCM sends an "engine is running" class 2 data message, and PCM does not send an ""L" terminal high" class 2 data message for 30 seconds after vehicle has started. When DTC B1487 is set, VOLTS indicator will illuminate. DTC B1487 can be cleared using scan tool, or history DTC will disappear after 100 ignition cycles if fault conditions do not reoccur.