Power Supply and Ground Circuit Check for NAVI Control Unit

WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE
- Check that the following fuses of the NAVI control unit are not blow.
Fig 1: NAVI Control Unit Fuse Checking Table
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 case of malfunction before installing new fuse. Refer to SYSTEM WIRING DIAGRAMS .
POWER SUPPLY CIRCUIT CHECK
1. Check voltage between the following harness connector terminals and ground.
Fig 2: Power Supply Circuit Voltage Table
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 3.
2. NG: Check harness for open or short between NAVI control unit and unit and fuse.
Fig 3: Checking Voltage Between Following Harness Connector Terminals And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector.
3. Check continuity between the following NAVI control unit and ground.
Fig 4: NAVI Control Unit And Ground Continuity Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Checking Continuity Between Following NAVI Control Unit And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

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