Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
USB Device or "iPod" cannot Charge (From 08/2009): Procedure
- REPLACE USB DEVICE OR "iPod"
- Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.
- Turn the power switch off.
HINT:
When this malfunction occurs, it is necessary to turn off the power switch to make it possible for the vehicle to recognize a new device when it is connected.
- Turn the power switch on (ACC).
- 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
- INSPECT MULTI-MEDIA INTERFACE ECU
- Disconnect the No. 1 stereo jack adapter assembly connector.
- Measure the voltage according to the value(s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard Voltage
Tester Connection Condition Specified Condition U11-1 (UPI) - U11-4 (UJSG) Always 5 V TEXT IN ILLUSTRATION*1 Front view of wire harness connector
(to No. 1 Stereo Jack Adapter Assembly)
NG → See step 4
OK → See step 3
- REPLACE NO. 1 STEREO JACK ADAPTER ASSEMBLY. Refer to REMOVAL
- CHECK HARNESS AND CONNECTOR
- Disconnect the multi-media interface ECU connector.
- Measure the resistance according to the value(s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard Resistance
Tester Connection Condition Specified Condition U12-4 (UPO) - U11-1 (UPI) Always Below 1 Ω U12-1 (UESG) - U11-4 (UJSG) Always Below 1 Ω U11-1 (UPI) - Body ground Always 10 kΩ or higher U11-4 (UJSG) - Body ground Always 10 kΩ or higher TEXT IN ILLUSTRATION*1 Front view of wire harness connector
(to No. 1 Stereo Jack Adapter Assembly)*2 Front view of wire harness connector
(to Multi-media Interface ECU)
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 5
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE
NO RELATED
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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.