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Home >> Mazda >> 2011 >> 6 s Touring Plus >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Charging System [MZR 2.5]) >> Battery Inspection [MZR 2.5] >> Back-up Current

Back-up Current

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  1. Verify that the ignition is off (key has been removed) and that all doors are closed.
  2. Disconnect the negative battery cable.
  3. Connect the tester between the negative battery terminal and negative battery cable, leave the battery undisturbed for 10 min  , and then measure the back-up current.
    • If not within specification, measure the back-up current while removing the fuses one by one from the inside of the main fuse block and the inside of the fuse block.
    CAUTION:
    • Operating electrical loads while the back-up current is being measured can damage the tester.
    NOTE:
    • If the battery is not left undisturbed for 10 min  , the tester will indicate a high value (approx. 200 mA  ).
    • If the ignition or any electrical accessory is operated within approx. 10 min  after the tester is connected, the battery must be left undisturbed for approx. 10 min  from that point.
    • For vehicles with the immobilizer system, the system periodically shifts synchronization of the security light flashing. Therefore, 65 mA (0.1 s)  current is supplied when the security light is illuminated, and 50 mA (2 s)  current is supplied when the security light is not illuminated. In addition, the measuring instrument, which shows the average value, indicates around 55 mA. 

    Battery back-up current (When the ignition is off (key is removed) and all doors are closed.) 

    50-65 mA 

  4. Inspect and repair wiring harnesses and connectors of the fuse where the current has decreased.