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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC B1372 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the IPC.
  2. Ignition ON, verify that a test lamp illuminates between the ignition 1 voltage circuit and ground
    • If the test lamp does not illuminate, repair the ignition 1 voltage circuit for an open/high resistance. If the ignition 1 voltage circuit fuse is open, also test the voltage circuit for a short to ground
  3. If all circuits test normal, test or replace the IPC.
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