DTC B1911 Generator L-Terminal Problem. Cadillac Eldorado 1999

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 1999 🢒 Eldorado 🢒 DTC 🢒 DTC B1911 Generator L-Terminal Problem

Circuit Description

This test is only performed when the ignition switch is in RUN, the IPC measures engine speed above 600 RPM, and the vehicle diagnostics system is not activated. This DTC indicates a circuit malfunction is preventing the alternator from charging.

DTC Will Set When:

Then IPC determines that CKT 225 is grounded by the generator with the ignition switch in RUN and engine speed above 600 RPM.

Action Taken (By IPC):

The IPC displays the BATTERY NOT CHARGING mesage and illuminates the BATTERY indicator.

Troubleshooting Hints:

•	This DTC typically indicates a malfunction within the generator.

•	Check for battery voltage at the generator terminal L (with the engine running). If voltage is present, check for intermittent shorts or opens in the alternator L-terminal or ignition-1 circuit.