Service Information: Precautions: Precaution

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

Fig 1: Disconnecting Battery Cable From Negative Terminal
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 no bends or breaks on AWD control unit pin terminal.

Fig 2: Locating Damage Pin Terminals
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. Refer to "AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUE ".

Fig 3: Identifying EPS Control Unit
Courtesy of NISSAN MOTOR CO., U.S.A.