Toyota CH-R Service Manual: USB Audio System Recognition/Play Error

DESCRIPTION

When a USB device or "iPod" is connected to the USB jack of the stereo jack adapter assembly, it must have playable files. The device must also communicate with and be recognized by the radio and display receiver assembly. This diagnostic procedure is for when a device is not recognized, or files from the device cannot be played normally.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

(a) Disconnect the USB device or "iPod" from the stereo jack adapter assembly.

(b) Check if playable files are present on the USB device or "iPod".

HINT:

Refer to System Description for playable files.

Click here

(c) Check if the USB device is a compatible format or "iPod" is a compatible version.

HINT:

Refer to System Description for compatible formats and versions.

Click here

A

END (USB DEVICE FORMAT WAS INCOMPATIBLE, "iPod" VERSION IS INCOMPATIBLE, OR NO PLAYABLE FILES EXIST)

B

(a) Disconnect the j4 radio and display receiver assembly connector.

(b) Disconnect the j1 No. 1 stereo jack adapter assembly connector.

(c) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition j4-1 (USV1) - j1-1 (UP1) Always Below 1 Ω j4-2 (US1-) - j1-2 (UDO-) Always Below 1 Ω j4-3 (US1+) - j1-3 (UDO+) Always Below 1 Ω j4-4 (UGD1) - j1-4 (UJSG) Always Below 1 Ω j4-5 (USG1) - j1-5 (UJSS) Always Below 1 Ω j4-1 (USV1) or j1-1 (UP1) - Body ground Always 10 kΩ or higher j4-2 (US1-) or j1-2 (UDO-) - Body ground Always 10 kΩ or higher j4-3 (US1+) or j1-3 (UDO+) - Body ground Always 10 kΩ or higher j4-4 (UGD1) or j1-4 (UJSG) - Body ground Always 10 kΩ or higher j4-5 (USG1) or j1-5 (UJSS) - Body ground Always 10 kΩ or higher

*a Front view of wire harness connector (to Radio and Display Receiver Assembly) *b Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

(a) Disconnect the No. 1 stereo jack adapter assembly connector.

(b) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Condition Specified Condition j1-1 (UP1) - j1-4 (UJSG) Engine switch on (ACC) 5 V

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

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

OK

(a) Delete all files in the USB device or "iPod" and format/restore it.

(b) Save the data again and check if it can be played on the in-vehicle device.

NOTICE:

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

(a) Turn the engine switch off.

HINT:

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

(b) Turn the engine switch on (ACC).

(c) Connect a known good USB device or "iPod" to the stereo jack adapter assembly.

NEXT

(a) Check if a USB device or "iPod" is recognized by the radio and display receiver assembly, 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