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Inspection Procedure

  1. INSPECT NAVIGATION RECEIVER ASSY (B,ACC,E) 
    1. Remove the navigation receiver assy and disconnect the connector.
    2. Check voltage.
      1. Measure voltage between terminals B, ACC and E of navigation receiver assy at each conditions, as shown in TERMINAL CONDITIONS .
        Fig 1: Locating ACC (+), B (+) And E (-) Connector Terminals
        G02915900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard: 

        TERMINAL CONDITIONS

        Terminal Condition Voltage (V)
        B <=> E Constant 10 - 14
        ACC <=> E Turn ignition switch ACC 10 - 14
    3. Check continuity.
      1. Check that the continuity exists between terminal E of navigation receiver assy and body ground.

        Standard: Continuity exists. 

    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: CHECK AND REPLACE NAVIGATION RECEIVER ASSY 
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