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On-Vehicle Inspection

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT REAR LIGHT ASSEMBLY 
    1. Disconnect the connector from the rear inner combination light.
    2. Measure the voltage according to the value (s) in the table below.

      Standard Voltage: 

      LH Side 

      STANDARD VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      Q40-1 - Q40-3 Light control switch in TAIL 11 to 14 V
      Q40-1 - Q40-3 Light control switch OFF Below 1 V

      RH Side 

      STANDARD VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      Q46-1 - Q46-3 Light control switch in TAIL 11 to 14 V
      Q46-1 - Q46-3 Light control switch OFF Below 1 V
      Fig 1: Identifying Q40 Rear Light LH And Q46 RH Side Connector Terminal
      G05756564Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, repair or replace the wire harness or connector

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