Inspection Procedure 2: The USB data cannot be replayed.

caution

Before replacing the hands free-ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal. Check that the USB memory device or iPod® is also normal.

COMMENTS ON TROUBLE SYMPTOM

If the sound replay is impossible with the USB mode, the USB cable, hands free-ECU, or radio and CD player or multivision display may be defective, or a communication error between the radio and CD player or multivision display and hands free-ECU may have occurred.

note

Before troubleshooting, check that the music file (the customer tried to replay) can be replayed.

PROBABLE CAUSES

The radio and CD player may be defective. <Vehicles with radio and CD player>
The multivision display may be defective. <Vehicles with MMCS>
The hands free-ECU may be defective.
The USB cable may be defective.
Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check the radio and CD player or multivision display operation.

Check if the radio and CD player or multivision display normally and the sound is output.

Q. Is the check result normal?

Go to Step 2.

Troubleshoot the radio and CD player (Refer to

) or MMCS (Refer to

STEP 2. Check the diagnosis mode.

<Vehicles with radio and CD player>

Check if the hands free-ECU can be switched to the diagnosis mode. (Refer to <Vehicles with 1CD audio> or <Vehicles with display audio>.)

<Vehicles with radio and MMCS>

Display the INFOR screen, and check that the "Mobile Phone" item is displayed. (Refer to .)

Q. Is the check result normal?

Go to Step 3.

Perform Inspection Procedure 5: DIAGNOSIS MODE cannot be made an entry. Mobile Phone item is not displayed. (Refer to

STEP 3. Check the USB cable.

Check that the USB cable is connected to the hands free-ECU normally. Or check the USB cable for damage such as bend.

Q. Is the check result normal?

Go to Step 4.

Replace or repair the USB cable.

STEP 4. Check of short to power supply, short to earth, and open circuit in OUTL, OUTR line between hands free-ECU connector and radio and CD player or multivision display connector.

Q. Is the check result normal?

Go to Step 5.

Repair the connector(s) or wiring harness.

STEP 5. Replace the hands free-ECU temporarily, and check the trouble symptom.

Replace the hands free-ECU temporarily, and check that the sound is output from the speaker.

Q. Is the check result normal?

Replace the hands free-ECU.

Replace the radio and CD player or multivision display.