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Removal And Installation Of Battery Terminal

NOTE: After disconnecting the negative (-) terminal, it is necessary to perform the initialization of certain systems, (see  INITIALIZATION  ) 
Fig 1: Disconnecting Battery Negative Terminal Cable
G03693774Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Before performing electronic work, disconnect the battery negative (-) terminal cable beforehand to prevent component and wire damage caused by accidental short circuits.
  2. When disconnecting the terminal cable, turn the ignition switch and lighting switch OFF and loosen the terminal nut completely. Perform these operations without twisting or prying the terminal. Remove the battery cable from the battery post.
  3. Clock settings, radio settings, DTCs and other data are erased when the battery cable is removed. Before removing the battery cable, record any necessary data.
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