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Home >> Lexus >> 2007 >> RX 350 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> Park Assist/Monitoring >> Rear View Monitor System >> Reverse Signal Circuit >> Inspection Procedure

Inspection Procedure

  1. CHECK BACK-UP LIGHT 
    1. Move the shift lever to the R position and check if the back-up light comes on.

      OK: The back-up light comes on. 

    NG: GO TO  LIGHTING SYSTEM 

    OK: Go to Next Step 

  2. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE) 
    1. Enter the "Display Check" mode (Vehicle Signal Check Mode) (See DISPLAY CHECK MODE ).
    2. Check that the display changes between ON and OFF according to the shift lever operation (P and R).

      OK 

      SHIFT LEVER POSITION

      Shift Lever Position Display
      R ON
      Except R OFF
      Fig 1: Identifying Display - Vehicle Signal Check Mode
      G05190199Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      This display is updated once per second. As a result, it is normal for the display to lag behind the actual change in the switch.

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

    NG: Go to Next Step 

  3. INSPECT MULTI-DISPLAY 
      Fig 2: Disconnecting Multi-Display Connector M5
      G05274173Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the multi-display connector M5.
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION TABLE

      Tester connection Condition Specified condition
      REV (M6-21) - Body ground Ignition switch is on. Shift lever is moved to R position. 10 to 14 V
      REV (M5-21) - Body ground Ignition switch is on. Shift lever is moved to any position except R. Below 1 V

    OK: REPLACE MULTI-DISPLAY 

    NG: CHECK AND REPLACE HARNESS AND CONNECTOR (MULTI-DISPLAY - PARK/NEUTRAL POSITION SWITCH)