Power Supply and Ground Circuit Check for NAVI Control Unit

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE
Make sure the following fuses of the NAVI control unit are not blown.

Fig 1: Fuse Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 2.
2. NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to "POWER SUPPLY ROUTING CIRCUIT ".
CHECK POWER SUPPLY CIRCUIT
1. Disconnect NAVI control unit connector P106.
2. Check voltage between connector terminals and ground as follows.
  
  Fig 2: Voltage Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Voltage Between Connector Terminals 2, 3, 6 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
2. NG: Check harness for open between display control unit and fuse.
CHECK GROUND CIRCUIT
Check continuity between the following NAVI control unit terminals and ground.

Fig 4: Checking Continuity Between Terminals 1, 4 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Continuity Table
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Inspection End.
2. NG: Repair or replace harness.