Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: USB Audio System Recognition/Play Error

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed.

Click here

HINT:

  • When many folders or files exist in the USB storage device, it may take a while to begin playback.
  • When using a USB storage device, files that are protected by copyright or encrypted cannot be played
  • If a USB hub is being used, remove it.
  • When files on the USB storage device are not played in the sorted order, perform the following procedure.
    1. Assign a number to the start of each file name.
    2. Move the files to a folder and copy each folder to the USB storage device.

PROCEDURE

1.

CHECK USB STORAGE DEVICE OR "iPod"

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

(b) Check that playable files exist in the USB storage device or "iPod".

(c) Check that the USB storage device or "iPod" being used by the customer is a compatible version and format.

Result

Proceed to

The format of the USB storage device is compatible

The version of the "iPod" is compatible

A

Playable files do not exist

The format of the USB storage device is not compatible

The version of the "iPod" is not compatible

B

B

END

A

2.

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO JACK ADAPTER ASSEMBLY)

(a) Disconnect the I55, I253 and I279 radio and display receiver assembly connectors.

(b) Disconnect the I260 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

I279-1 (USV1) - I260-3 (VBUS)

Always

Below 1 Ω

I279-2 (US1-) - I260-4 (D-)

Always

Below 1 Ω

I279-3 (US1+) - I260-1 (D+)

Always

Below 1 Ω

I279-4 (UGD1) - I260-2 (VGND)

Always

Below 1 Ω

I279-5 (USG1) - I260-5 (UJSS)

Always

Below 1 Ω

I253-6 (ADPG) - I260-7 (ADPI)

Always

Below 1 Ω

I55-2 (GND2) - I260-8 (GND)

Always

Below 1 Ω

I55-3 (+B) - I260-6 (+B)

Always

Below 1 Ω

I279-1 (USV1) or I260-3 (VBUS) - Body ground

Always

10 kΩ or higher

I279-2 (US1-) or I260-4 (D-) -Body ground

Always

10 kΩ or higher

I279-3 (US1+) or I260-1 (D+) - Body ground

Always

10 kΩ or higher

I279-4 (UGD1) or I260-2 (VGND) - Body ground

Always

10 kΩ or higher

I279-5 (USG1) or I260-5 (UJSS) - Body ground

Always

10 kΩ or higher

I253-6 (ADPG) or I260-7 (ADPI) - Body ground

Always

10 kΩ or higher

I55-2 (GND2) or I260-8 (GND) - Body ground

Always

10 kΩ or higher

I55-3 (+B) or I260-6 (+B) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY (USV1, UGND, +B, GND2, ACC)

(a) Disconnect the I260 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

I260-3 (VBUS) - I260-2 (VGND)

Ignition switch ON

4.5 to 5.5 V

I260-6 (+B) - I260-8 (GND)

Always

11 to 14 V

HINT:

Measure the voltage with the radio and display receiver assembly connectors connected.

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

OK

4.

FORMAT USB DEVICE OR INITIALIZE "iPod" AND RECHECK

(a) Format the USB storage device or initialize the "iPod" to delete the audio files.

NOTICE:

When formatting the USB storage device or initializing the "iPod", all audio files stored in the device will be deleted. Make sure to back up the audio files before performing this procedure.

(b) Restore the data and check if the problem can be reproduced.

Result

Proceed to

Malfunction disappears

A

Malfunction occurs.

B

A

END

B

5.

CHECK USB STORAGE DEVICE OR "iPod"

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

(b) Turn the ignition switch from off to ON

HINT:

If another USB storage device or "iPod" is to be connected, it is necessary to turn the ignition switch off in order for the device to be detected.

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

HINT:

  • When a USB storage device is used, replace it with another device and perform the inspection.
  • When an "iPod" is used, replace it with another device and perform the inspection.

(d) Perform the operation again and check if the problem symptom recurs.

Result

Proceed to

Malfunction disappears

A

Malfunction occurs

B

A

END

B

6.

CHECK STEREO JACK ADAPTER ASSEMBLY

(a) Replace the stereo jack adapter assembly with a new or known good one.

Click here

(b) Check if the problem symptom recurs.

Result

Proceed to

Malfunction disappears

A

Malfunction occurs

B

A

END (STEREO JACK ADAPTER ASSEMBLY MALFUNCTION)

B

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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