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Home >> Cadillac >> 1997 >> Eldorado Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> INSTRUMENT PANEL CLUSTER DIAGNOSTIC TROUBLE CODES (DTCs) >> DTC B1910 >> Diagnostic Procedure

Diagnostic Procedure

  1. Connect scan tool. Turn ignition on. Using scan tool, select IPC, DATA LIST, INPUTS, and ALT L TERMINAL. If scan tool does not display ON, go to next step. If scan tool displays ON, replace IPC.
  2. Turn ignition off. Disconnect IPC connector C1. Disconnect generator. Measure resistance in Red wire between IPC connector C1 terminal A9 and generator L-terminal. See Figure . If resistance is greater than 5 ohms, locate and repair open circuit in Red wire. If resistance is less than 5 ohms, go to next step.
  3. Reconnect IPC connector C1. Turn ignition on. Measure voltage between generator connector L-terminal (Red wire) and ground. If battery voltage is present, replace generator. If battery voltage is not present, replace IPC.
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