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Inspection Procedure

  1. INSPECT NAVIGATION RECEIVER ASSY (B,ACC,E) 
    Fig 1: Disconnecting Navigation Receiver Assy Connector
    G02837146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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 the chart.

      Standard: 

      NAVIGATION RECEIVER ASSY CONNECTOR TERMINALS CONDITION AND VOLTAGE

      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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