Power Supply and Ground Circuit Check for Display

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.

CHECK1: POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between display harness connector M63 terminals 2 (W/G), 3 (BR/W) and ground.
  1. Approx. 9V
OK or NG
1. OK : GO TO 3 .
2. NG : GO TO 2.
Fig 1: Checking Voltage Between Display Harness Connector M63 Terminals 2 (W/G)
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK POWER SUPPLY CIRCUIT
Check voltage between display control unit harness connector M75 terminals 2 (W/G), 4 (BR/W) and ground.
1. Approx. 9V
OK or NG
1. OK : Repair harness or connector.
2. NG : Replace display control unit.
Fig 2: Checking Voltage Between Display Control Unit Harness Connector M75 Terminals 2 (W/G)
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display connector.
3. Check continuity between display and ground as follows.
Fig 3: Terminal Continuity Specification
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Checking Continuity Between Display And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : INSPECTION END.
2. NG : Repair harness or connector.