mxu 500 irs efi Manuale-dofficina : Pagina 357

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Pagina 355

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Pagina 356

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Pagina 358

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Pagina 359

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          17. BATTERY/CHARGING SYSTEM                                                   MXU 500 IRS


 TROUBLESHOOTING
 Battery is damaged or weak
   Remove the battery.
   Check the battery condition.           Incorrect      ·Faulty battery


                Correct

                                          Incorrect       Disconnect the regulator/rectifier
   Install the battery.                                   connectors and recheck the battery
   Check the battery current leakage.                     current leakage.

   Specified current leakage: 0.5 Ma                  Incorrect                    Correct
   max
                                                                       ·Faulty regulator/rectifier.
                Correct
                                                                  ·Shorted wire harness.
                                                                  ·Faulty ignition switch.
   Check the alternator charging coil.
                                          Incorrect      ·Faulty charging coil.
   Standard: 0.1 ­ 0.3  (20°C/68°F)


                Correct


                                          Correct        ·Faulty battery.
   Measure and record the battery
   voltage using a digital multimeter.
   Start the engine.
   Measure the charging voltage.
   Compare the measurements to result
   of the following calculation.

   Measured voltage < measured
   charging voltage < 15.5 V


                Incorrect


   Perform the regulator/rectifier wire   Incorrect      ·Open circuit in related wire.
   harness inspection.
                                                         ·Loose or poor contacts of related
                                                          terminal.
                Correct                                  ·Shorted wire harness

         ·Faulty regulator/rectifier


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