2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Reverse Signal Check for Display Control Unit

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK REVERSE LAMP 
    1. Turn ignition switch ON.
    2. Selector lever into R-position. Does "R" in the shift position indicator come on?

    YES or NO

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

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

    DISPLAY CONTROL UNIT REVERSE SIGNAL CHECK CHART

    Terminals Selector lever position
    (+) (-)
    Connector Terminal (Wire color) R-position Other than R-position
    M42 6 (G/W) Ground Battery voltage Approx. 0V

    OK or NG

    1. OK : Replace display control unit.
    2. NG : Check harness for open or short between display control unit and back-up lump position relay.
    Fig 1: Checking Voltage Between Display Control Unit Connector Terminals And Ground
    G03360104Courtesy of NISSAN MOTOR CO., U.S.A.
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