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Home >> Lexus >> 2012 >> IS 250C Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio / Video System (W/O Navigation) (Multi-Display) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/o Navigation System with Multi-display) >> Circuit Tests >> USB Device or "iPod" cannot Charge >> Procedure

USB Device or "iPod" cannot Charge: Procedure

  1. REPLACE USB DEVICE OR "iPod" 
    1. Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.
    2. Turn the engine switch off.

      HINT: 

      When this malfunction occurs, it is necessary to turn off the engine switch to make it possible for the vehicle to recognize a new device when it is connected.

    3. Turn the engine switch on (ACC).
    4. Connect a known good USB device or "iPod" to the No. 1 stereo jack adapter assembly.

      OK

      USB device or "iPod" charges.

    NG → See step   2 

    OK → USB DEVICE OR "iPod" WAS DEFECTIVE 

  2. INSPECT MULTI-MEDIA INTERFACE ECU 
    1. Disconnect the No. 1 stereo jack adapter assembly connector.
    2. Measure the voltage according to the value(s) in the table below.
      Fig 1: m1 Connector Terminal Identification
      GTY393132Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      STANDARD VOLTAGE

      Tester Connection Condition Specified Condition
      m1-1 (UPI) - m1-4 (UJSG) Engine switch on (ACC) 5 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to No. 1 Stereo Jack Adapter Assembly)

    NG → See step   3 

    OK → See step   4 

  3. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA INTERFACE ECU - NO. 1 STEREO JACK ADAPTER ASSEMBLY) 
    1. Disconnect the multi-media interface ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 2: J110 & m1 Connector Terminal Identification
      GTY395171Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      m1-1 (UPI) - J110-4 (UPO) Always Below 1 Ω
      m1-4 (UJSG) - J110-1 (UESG) Always Below 1 Ω
      J110-4 (UPO) - Body ground Always 10 kΩ or higher
      J110-1 (UESG) - Body ground Always 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to No. 1 Stereo Jack Adapter Assembly)
      *b Front view of wire harness connector
      (to Multi-media Interface ECU)

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   5 

  4. REPLACE NO. 1 STEREO JACK ADAPTER ASSEMBLY. Refer to  REMOVAL 
  5. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE