Power Supply and Ground Circuit Check for Display Unit

1. Check power supply and ground circuit for display control unit Refer to , "POWER SUPPLY AND GROUND CIRCUIT CHECK FOR DISPLAY CONTROL UNIT ".

OK or NG 

1. OK : GO TO 2.
2. NG : Repair malfunctioning part.

1. Disconnect display unit connector.
2. Turn ignition switch ON.
3. Check voltage between display unit harness connector M93 terminals 2 (L/W), 3 (L/R) and ground.

   Approx. 9 V 

   Fig 1: Checking Voltage Between Display Unit Harness Connector M93 Terminals 2 (L/W), 3 (L/R) And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

1. OK : GO TO 3.
2. NG : GO TO  4

Check continuity between display unit and ground as follows.

Fig 2: Checking Continuity Between Display Unit Connector Terminals And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

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

1. Turn ignition switch OFF.
2. Disconnect display unit connector and display control unit connector.
3. Check continuity between display control unit harness connector M94 terminals 2 (L/W), 4 (L/R) and display unit harness connector M93 terminals 2 (L/W), 3 (L/R).
   DISPLAY CONTROL UNIT AND DISPLAY UNIT CONNECTOR TERMINALS CONTINUITY
   
   

   Terminals				Continuity
   Display control unit		Display unit
   Connector	Terminal (Wire color)	Connector	Terminal (Wire color)
   M94	2 (L/W)	M93	2 (L/W)	Yes
   	4 (L/R)		3 (L/R)

4. Check continuity between display unit and ground.
   DISPLAY UNIT CONNECTOR TERMINALS CONTINUITY
   
   

   Terminals			Continuity
   Display unit		---
   Connector	Terminal (Wire color)
   M93	2 (L/W)	Ground	No
   	3 (L/R)

   Fig 3: Checking Continuity Between Display Control Unit Harness Connector Terminals And Display Unit Harness Connector Terminals

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

1. OK : Replace display control unit. Refer to , "REMOVAL AND INSTALLATION OF DISPLAY CONTROL UNIT ".
2. NG : Repair harness.