The USB adapter data cannot be replayed. <Vehicles with MMCS>


caution Before replacing the USB box, 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



note
  • The ACC signal is received C-217 USB box connector terminal No.15 from C-106 multivision display connector terminal No.8.
  • From the fusible link to C-127 intermediate connector, the USB box uses the same power supply circuit as that of multivision display. Therefore, check first if the multivision display operates normally. If the multivision display does not operate normally, carry out in advance the troubleshooting of "No navigation screen is displayed". (Refer to <Vehicles without Auto Stop & Go (AS&G) System> or <Vehicles with Auto Stop & Go (AS&G) System>.)

PROBABLE CAUSES



  • The multivision display may be defective.
  • The USB box may be defective.
  • The USB adapter may be defective.
  • The USB cable may be defective.
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check the multivision display operation.
Check if the multivision display normally and the sound is output.

Q. Is the check result normal?
Go to Step 2
Troubleshoot the multivision display. (Refer to .)

STEP 2. Check the diagnosis mode
Check if the hands free-ECU can be switched to the diagnosis mode. (Refer to .)

Q. Is the check result normal?
Go to Step 3
Perform Inspection Procedure 5 "DIAGNOSIS MODE cannot be made an entry." (Refer to .)

STEP 3. Check the USB adapter.
Check that the continuity exists between the front side terminals of USB adapter and rear side terminals of USB adapter. (Refer to )

Q. Is the check result normal?
Go to Step 4
Replace the USB adapter.

STEP 4. Check the USB cable.
Check that the USB cable is connected to the USB adapter or hands free-ECU normally. Or check the USB cable for damage such as bend.

Q. Is the check result normal?
Go to Step 5
Replace or repair the USB cable.

STEP 5. Connector check: C-217 USB box connector, C-127 intermediate connector

Q. Is the check result normal?
Go to Step 6.
Repair the defective connector.

STEP 6. Voltage measurement at C-217 USB box connector.
(1)Disconnect the connector, and measure at the wiring harness-side connector.
(2)Voltage between C-217 USB box connector terminal No.1 and the body earth
OK: System voltage

Q. Is the check result normal?
Go to Step 8.
Go to Step 7.

STEP 7. Check the wiring harness between C-217 USB box connector terminal No.1 and C-127 intermediate connector terminal No.10.

  • Check the power supply lines (battery power supply) for open circuit and short circuit.

Q. Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Repair the wiring harness.

STEP 8. Resistance measurement at C-217 USB box connector.
(1)Disconnect C-217 USB box connector, and measure the resistance available at the wiring harness side of the connector.
(2)Check the continuity between terminal No.17 and body earth.
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?
Go to Step 11.
Go to Step 9.

STEP 9. Connector check: C-01 earth joint connector

Q. Is the check result normal?
Go to Step 10.
Repair the defective connector.

STEP 10. Check the wiring harness between C-217 USB box connector terminal No.17 and C-01 earth joint connector terminal No. 1.

  • Check the earth wires for open circuit.
note Prior to the wiring harness inspection, check the joint connector C-231, and repair if necessary.

Q. Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Repair the wiring harness.

STEP 11. Connector check: C-106 multivision display connector

Q. Is the check result normal?
Go to Step 12.
Repair the defective connector.

STEP 12. Check the wiring harness between C-106 multivision display connector terminal No 4, 3, 9, 18, 8 and C-217 USB box connector terminal No 8, 22, 2, 16, 15.

  • Check the communication line for open circuit and short circuit.
note Prior to the wiring harness inspection, check joint connector C-102 <LHD> or C-232 <RHD>, and repair if necessary.

Q. Is the check result normal?
Go to Step 13.
Repair the wiring harness.

STEP 13. Replace the USB box temporarily, and check the trouble symptom.
Replace the USB box temporarily, and check that the sound is output from the speaker.

Q. Is the check result normal?
Replace the USB box.
Replace the multivision display.