DESCRIPTION
When a USB device or "iPod" is connected to the USB jack of the No. 1 stereo jack adapter assembly, it must have playable files. The device must also communicate with and be recognized by the navigation ECU. This diagnostic procedure is for when a device is not recognized, or files from the device cannot be played normally.
WIRING DIAGRAM
*a | (Shielded) |
*b | No. 1 Stereo Jack Adapter Assembly |
*c | Navigation ECU |
*d | Date Signal (USB Communication Line) |
CAUTION / NOTICE / HINT
Tech Tips
When a large amount of data is in a USB device, it may take a while to begin playback.
When using a USB device, files that are protected by copyright cannot be played.
When files are not played in the sorted order, perform the following procedure before inspection.
Add numbers in front of the file names.
Put the files in a folder and copy the folder data to the USB device.
PROCEDURE
CHECK USB DEVICE OR "iPod"
Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.
Check if playable files are present on the USB device or "iPod".
Tech Tips
Refer to System Description for playable files Click here.
Check if the USB device is a compatible format or "iPod" is a compatible version.
Tech Tips
Refer to System Description for compatible formats and versions Click here.
Result | ||||||
---|---|---|---|---|---|---|
|
A |
END (USB DEVICE FORMAT WAS INCOMPATIBLE, "iPod" VERSION WAS INCOMPATIBLE, OR NO PLAYABLE FILES PRESENTED) |
B |
CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - NO. 1 STEREO JACK ADAPTER ASSEMBLY)
*a | Front view of wire harness connector (to Navigation ECU) |
*b | Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly) |
Disconnect the L174 No. 1 stereo jack adapter assembly connector.
Disconnect the L175 navigation ECU connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
INSPECT NAVIGATION ECU (NO. 1 STEREO JACK ADAPTER ASSEMBLY POWER SOURCE)
Disconnect the L174 No. 1 stereo jack adapter assembly connector.
*a | Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly) |
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
REPLACE NAVIGATION ECU Click here |
OK |
FORMAT USB DEVICE OR RESTORE "iPod" AND RECHECK
Delete all files in the USB device or "iPod" and format/restore it.
Save the data again and check if it can be played on the in-vehicle device.
Note
Formatting a USB device or restoring an "iPod" erases all music on the device. Ensure that a backup of the music data is available before performing this operation.
OK |
---|
Malfunction disappears. |
OK |
END |
NG |
REPLACE USB DEVICE OR "iPod"
Turn the power switch off.
Tech Tips
When this malfunction occurs, it is necessary to turn the power switch off 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.
Tech Tips
If the malfunction occurred when a USB device was in use, use another USB device for the inspection. If the malfunction occurred when an "iPod" was in use, use another "iPod" for the inspection.
Refer to System Description for compatible formats and versions Click here.
NEXT |
CHECK USB DEVICE OR "iPod"
Check if a USB device or "iPod" is recognized by the navigation ECU, and if information such as track, artist and album names is displayed on the screen.
OK |
---|
USB device or "iPod" is recognized properly and the information is displayed on the screen. |
OK |
USB DEVICE OR "iPod" WAS INCOMPATIBLE OR DEFECTIVE |
NG |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here |