Inspection of Multifunction Switch for Power Supply and Ground Circuit

WARNING: This page is about a different car, the 2003 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER SUPPLY CIRCUIT
1. Disconnect multifunction switch connector.
2. Check voltage between multifunction switch and ground.
  
  Fig 1: Checking Voltage Between Multifunction Switch & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Identifying Terminal And Ignition Switch Position
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK >> GO TO 2.

NG >> Check harness for open or short between multifunction switch and fuse.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between multifunction switch harness connector M83 terminal 2 (B) and ground.
  1. Continuity should exist.
OK or NG

OK >> Inspection end.

NG >> Repair harness or connector.