Precautions For Removing Battery Terminal

When disconnecting the battery terminal, pay attention to the following.

• Always use a 12 V battery as power source.
• Never disconnect battery terminal while engine is running.
• When removing the 12 V battery terminal, turn OFF the Ignition Switch and wait at least 30 seconds.

  Courtesy of NISSAN NORTH AMERICA, INC.

• For vehicles with the engine listed below, remove the battery terminal after a lapse of the specified time:

  BR08DE	: 4 minutes	V9X engine	: 4 minutes
  D4D engine	: 20 minutes	YD25DDTi	: 2 minutes
  HR09DET	: 12 minutes	YS23DDT	: 4 minutes
  HRA2DDT	: 12 minutes	YS23DDTT	: 4 minutes
  K9K engine	: 4 minutes	ZD30DDTi	: 60 seconds
  M9R engine	: 4 minutes	ZD30DDTT	: 60 seconds
  R9M engine	: 4 minutes

  NOTE:

  ECU may be active for several tens of seconds after the Ignition Switch is turned OFF. If the battery terminal is removed before ECU stops, then a DTC detection error or ECU data corruption may occur.

• After high-load driving, if the vehicle is equipped with the V9X engine, turn the Ignition Switch OFF and wait for at least 15 minutes to remove the battery terminal.
  NOTE:

  • Turbocharger cooling pump may operate in a few minutes after the Ignition Switch is turned OFF.
  • Example of high-load driving
    • Driving for 30 minutes or more at 140 km/h (86 MPH) or more.
    • Driving for 30 minutes or more on a steep slope.
• For vehicles with two batteries, be sure to connect the main battery and the sub battery before turning ON the Ignition Switch.
  NOTE:

  If the Ignition Switch is turned ON with any one of the terminals of main battery and sub battery disconnected, then DTC may be detected.

• After installing the 12 V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.
  NOTE:

  The removal of 12 V battery may cause a DTC detection error.