Power Supply and Ground Circuit Check for Display Unit

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE
Check if the following fuses in display unit are blown.

Fig 1: Fuse Number Unit Specification
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 "POWER SUPPLY ROUTING CIRCUIT ".
CHECK POWER SUPPLY CIRCUIT
Check voltage between display unit connector and ground.

Fig 2: Terminal Switch Position Specification
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Voltage Between Display Unit Connector And Ground
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 display unit and fuse.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector.
3. Check continuity between display unit harness connector M62 terminals 6 (B), 15 (B) and ground.
1. Continuity should exist.
OK or NG
1. OK : INSPECTION END
2. NG : Check ground harness.
Fig 4: Checking Continuity Between Display Unit Harness Connector M62 Terminals 6 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.