LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 2018 (Audio, Visual, Navigation & Telephone System) >> Navigation System >> Reverse Signal Check for NAVI Control Unit
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Reverse Signal Check for NAVI Control Unit

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. 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 A/T selector lever into R-position. Do back-up lamps come on?

    Yes or No 

    YES: GO TO 2.

    NO: Check back-up lamp system. Refer to "BACK-UP LAMP ".

  2. CHECK REVERSE SIGNAL 
    1. Disconnect NAVI control unit connector B152.
    2. Turn ignition switch ON.
    3. With the A/T selector lever in R-position, check voltage between NAVI control unit and ground.
      SELECTOR LEVER POSITION CHART

      Terminals Selector lever position
      (+) (-)
      Connector Terminal R-position Other than R-position
      B152 65 Ground Battery voltage Approx. 0V
      Fig 1: Checking Voltage Between NAVI Control Unit Terminal 65 And Ground
      G04904286

    OK or NG 

    OK: Replace NAVI control unit. Refer to "NAVI CONTROL UNIT ".

    NG: Check harness for open or short between NAVI control unit and back-up lamp position relay.