Transfer Case: Precautions: Precautions

Before connecting or disconnecting the AWD control unit harness connector, turn ignition switch "OFF" and disconnect negative battery cable. Because battery voltage is applied to AWD control unit even if ignition switch is turned "OFF".

Fig 1: Disconnecting Negative Terminal Of Battery
Courtesy of NISSAN MOTOR CO., U.S.A.
When connecting or disconnecting pin connectors into or from AWD 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 AWD control unit pin terminal.

Fig 2: Connecting Connector Of Control Unit Pin Terminal
Courtesy of NISSAN MOTOR CO., U.S.A.
Before replacing AWD control unit, perform AWD control unit input/output signal inspection and make sure whether AWD control unit functions properly or not. "AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES ".

Fig 3: Inspecting Input/Output Signal
Courtesy of NISSAN MOTOR CO., U.S.A.