2003 Nissan-Datsun Sentra SE-R, StandardFACTORY OEM SERVICE PROCEDURE

Reverse Signal Check For Display Control Unit

WARNING: This page is about a different car, the 2004 Nissan Quest. 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. 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 .
  2. CHECK REVERSE SIGNAL 

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

    VOLTAGE SPECIFICATION

    Terminals Selector lever position
    (+) (-)
    Connector Terminal (Wire color) R-position Other than R-position
    M94 6(G/W) Ground Battery voltage Approx. 0V
    Fig 1: Checking Voltage Between Display Control Unit And Ground
    G03501244Courtesy 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.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.