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Generator L-Terminal Open Circuit

  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 terminal "L". If resistance is greater than 5 ohms, go to next step. If resistance is less than 5 ohms, repair open circuit in Red wire.
  3. Reconnect IPC connector C1. Turn ignition on. Measure voltage between generator connector terminal "L" (Red wire) and ground. If about battery voltage is present, replace generator. If about battery voltage is not present, replace IPC.
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