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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Audio/Visual >> AUDIO AND VISUAL SYSTEM (w/ Multi-display) >> Rear Seat Control Switch Power Source Circuit >> Inspection Procedure

Inspection Procedure

HINT:

First make sure the CAN communication system is operating normally.

  1. INSPECT FUSE (RR MPX-B 2) 
    1. Disconnect the RR MPX-B 2 fuse from the luggage room junction block.
    2. Measure the resistance of the fuse.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      RR MPX-B 2 fuse Always Below 1 Ω

    NG: REPLACE FUSE 

    OK: GO TO NEXT STEP 

  2. CHECK HARNESS AND CONNECTOR (REAR POWER SEAT MODULE SWITCH BATTERY AND BODY GROUND) 
    1. Disconnect the S15 or r2 module connector.
      Fig 1: Identifying Rear Power Seat Module Switch Battery And Body Ground Connector Terminal
      G04949088Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      S15-5 (E)*1 or r2-3 (E)*2 - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      S15-6 (B)-Body ground*1 Always 11 to 14 V
      r2-11 (B) - Body ground*2 Always 11 to 14 V

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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