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PRECAUTIONS CO-3 < PRECAUTION > [MR FOR NISMO RS MODELS] C D E F G H I J K L M A CO N P O PRECAUTION PRECAUTIONS Precautions for Removing Battery Terminal INFOID:0000000012959272 When disconnecting the battery terminal, pay attention to the following. • Always use a 12V battery as power source. • Never disconnect battery terminal while engine is running. • When removing the 12V battery terminal, turn OFF the ignition switch and wait at least 30 seconds. • For vehicles with the engine listed below, remove the battery termi- nal after a lapse of the specified time: 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 the 2-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 discon- nected, then DTC may be detected. • After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC. NOTE: The removal of 12V battery may cause a DTC detection error. Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT INFOID:0000000012197511 The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this Service Manual. WARNING: Always observe the following items for preventing accidental activation. • To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision that would result in air bag inflation, it is recommended that all maintenance and repair be performed by an authorized NISSAN/INFINITI dealer. • Improper repair, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see “SRS AIR BAG”. D4D engine : 20 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 V9X engine : 4 minutes YD25DDTi : 2 minutes SEF289H |