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Home >> Lexus >> 2005 >> GX 470 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> LEXUS Navigation System - Diagnostics >> Power Source Circuit (Multi-Display Controller Sub-ASSY) >> Inspection Procedure
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Inspection Procedure

  1. INSPECT MULTI-DISPLAY CONTROLLER SUB-ASSY 
    1. Disconnect the multi-display controller sub-assy connectors R5 and R6.
    2. Measure the resistance according to the value(s) in TESTER CONNECTION SPECIFIED CONDITION TABLE .
      Fig 1: Identifying Multi-Display Controller Sub-Assy Connectors R5 & R6 Connectors Terminals
      G02965454Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION TABLE

      Tester connection Condition Specified condition
      GND - Body ground Always Below 1 ohms
      SELD - Body ground Always Below 1 ohms
    3. Measure the voltage according to the value(s) in TESTER CONNECTION SPECIFIED CONDITION TABLE .

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION TABLE

      Tester connection Condition Specified condition
      +B1 - GND Always 10 to 14 V
      ACC - GND Ignition SW ACC 10 to 14 V
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN DIAGNOSTIC TROUBLE CODE TABLE (SEE  DIAGNOSTIC TROUBLE CODE TABLE   )