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Reverse Signal Check for Display Control Unit

  1. CHECK REVERSE LAMP 
    1. Turn ignition switch ON.
    2. Place selector lever into R-position. Do back-up lamps come on?

    YES or NO

    1. YES: GO TO 2.
    2. NO: Check back-up lamp system. Refer to BACK-UP LAMP - QX56 .
  2. CHECK REVERSE SIGNAL 

    With the selector lever in R-position, check voltage between display control unit and ground.

    Fig 1: Displaying Terminal Connector Specifications
    G02406780Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Checking Voltage Between Display Control Unit And Ground
    G02406781Courtesy 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: Check harness for open or short between display control unit and back-up lamp position relay.