Rear Final Drive: M226 (ELD)
Precaution for Supplemental Restraint System (SRS)"AIR BAG" and "SEAT BELT PRE-TENSIONER"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 and SB section of this Service Manual.
WARNING:
^ To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.
^ Improper maintenance, 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 the SRS section.
^ Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
Precaution
^ Before connecting or disconnecting differential lock control unit harness connector, turn ignition switch "OFF" and disconnect the battery cable from the negative terminal. Because battery voltage is applied to differential lock control unit even if ignition switch is turned "OFF".
^ When connecting or disconnecting pin connectors into or from differential lock control unit, take care not to damage pin terminals (bend or break).
When connecting pin connectors make sure that there are not any bends or breaks on differential lock control unit pin terminal.
^ Before replacing differential lock control unit, perform differential lock control unit input/output signal inspection and make sure whether differential lock control unit functions properly or not. Refer to DLN-260, "Reference Value". Pinout Values and Diagnostic Parameters
Precaution for Servicing Rear Final Drive
^ Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic operations.
^ Check for the correct installation status prior to removal or disassembly. When matching marks are required, be certain they do not interfere with the function of the parts they are applied to.
^ Overhaul should be done in a clean work area, a dust proof area is recommended.
^ Before disassembly, completely remove sand and mud from the exterior of the unit, preventing them from entering into the unit during disassembly or assembly.
^ Always use shop paper for cleaning the inside of components.
^ Avoid using cotton gloves or a shop cloth to prevent the entering of lint.
^ Check appearance of the disassembled parts for damage, deformation, and abnormal wear. Replace them with new ones if necessary.
^ Gaskets, seals and O-rings should be replaced any time the unit is disassembled.
^ Clean and flush the parts sufficiently and blow them dry.
^ Be careful not to damage sliding surfaces and mating surfaces.
^ When applying sealant, remove the old sealant from the mating surface; then remove any moisture, oil, and foreign materials from the application and mating surfaces.
^ In principle, tighten nuts or bolts gradually in several steps working diagonally from inside to outside. If a tightening sequence is specified, observe it.
^ During assembly, observe the specified tightening torque.
^ Add new differential gear oil, petroleum jelly, or multi-purpose grease, as specified.