Inspection Procedure 5: DIAGNOSIS MODE cannot be made an entry. Mobile Phone item is not displayed on the MENU screen of audio. <Vehicles with MMCS>

caution

Before replacing the hands free-ECU or multivision display, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM

PROBABLE CAUSES

The hands free-ECU may be defective.
The multivision display may be defective.
Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check the multivision display operation.

Check if the multivision display work normally and the sound is output.

Q. Is the check result normal?

	Go to Step 2

	Troubleshoot the multivision display. (Refer to .)

STEP 2. Connector check: C-218 hands free ECU connector, C-106 multivision display connector

Q. Is the check result normal?

	Go to Step 3.

	Repair the defective connector.

STEP 3. Check the wiring harness between C-218 hands free ECU connector terminal No.2, 16 and C-106 multivision display connector terminal No.9, 18.

Check the signal lines for open circuit and short circuit.

note

Prior to the wiring harness inspection, check the joint connector C-102 <LHD> and C-232 <RHD>, and repair if necessary.

Q. Is the check result normal?

	Go to Step 4.

	Repair the wiring harness.

STEP 4. Check if the power supply circuit of hands free-ECU have a problem.

Perform the Inspection procedure 1 "Check the hands free-ECU power supply circuit." of the troubleshooting. (Refer to

<Vehicles without Auto Stop & Go (AS&G) System> or

<Vehicles with Auto Stop & Go (AS&G) System>)

Q. Is the check result normal?

	Go to Step 5

	Repair according to the troubleshooting for reference.

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

Q. Is the check result normal?

	Replace the hands free-ECU.

	Replace the multivision display.