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HOMESERVICE MANUALSTOYOTA2013SIENNA LIMITED, FWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSAUDIO / VIDEO SYSTEM (DIAGNOSTIC CODES & SYMPTOM TESTS)AUDIO AND VISUAL SYSTEMDTC CB-13: USB OVER CURRENT DETECTIONPROCEDURE
2013 Toyota Sienna Limited, FWD

DTC CB-13: USB Over Current Detection: Procedure

2013 Toyota Sienna Limited, FWDSECTION 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 ignition switch off.

      HINT: 

      When this DTC has been stored, it is necessary to turn off the ignition switch to make it possible for the vehicle to recognize a new device when it is connected.

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

    NEXT: Go to next step 

  2. CLEAR DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .

    NEXT: Go to next step 

  3. RECHECK FOR DTC 
    1. Recheck for DTCs and check if the same DTC occurs again.

      HINT: 

      If DTCs are detected frequently, replace the multi-media interface ECU.

      OK

      Malfunction disappears.

    NG → See step   4 

    OK → USB DEVICE OR "iPod" WAS DEFECTIVE 

  4. CHECK NO. 1 STEREO JACK ADAPTER ASSEMBLY 
    1. Disconnect the D128 No. 1 stereo jack adapter assembly connector.
      Fig 1: Measuring Resistance Of No. 1 Stereo Jack Adapter Assembly
      GTY343669Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      D128-1 - D128-4 Always 5 V
      TEXT IN ILLUSTRATION

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

    NG → See step   5 

    OK → See step   6 

  5. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA INTERFACE ECU - STEREO JACK ADAPTER) 
    1. Disconnect the D129 multi-media interface ECU connector.
    2. Disconnect the D128 No. 1 stereo jack adapter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D129-4 - D128-4 Always Below 1 Ω
      D129-1 - D128-1 Always Below 1 Ω
      D129-4 - Body ground Always 10 kΩ or higher
      D129-1 - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   7 

  6. REPLACE NO. 1 STEREO JACK ADAPTER ASSEMBLY. Refer to  REMOVAL 
  7. REPLACE MULTI-MEDIA INTERFACE ECU. Refer to  REMOVAL 
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.