Inspection Procedure 3: Radio broadcasting cannot be received.


caution Before replacing the multivision display, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM


In case of radio broadcasting cannot be received, the antenna rod, antenna base, antenna feeder cable or multivision display may have a problem.
note The radio wave may not be received if the vehicle is placed in the area which is exposed to a special electric field. Thus, check that the radio broadcasting can be received using the radio of another vehicle before carrying out diagnosis.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. Check the state of the antenna rod and antenna base.

Q. Is the antenna assembled?
Go to Step 2.
Assemble antenna rod and antenna base.

STEP 2. Check to see if inspections are taking place in an area exposed to special electric fields.

Q. Is the reception area exposed to special electric fields?
Go to Step 3.
Go to Step 4.

STEP 3. Move the vehicle and check the radio.
Move the vehicle to a good reception area that is not exposed to special electric fields.

Q. Is the check result normal?
Diagnosis complete.
Go to Step 4.

STEP 4. Check if there is any damage to the antenna rod and antenna base, and antenna feeder cable.

Q. Is the check result normal?
Go to Step 5.
Replace the antenna rod and antenna base, and antenna feeder cable.

STEP 5. Check the connection of the antenna feeder cable’s plug and multivision display.

Q. Is the antenna feeder cable’s plug thoroughly connected to the multivision display?
Go to Step 6.
Thoroughly connect the antenna feeder cable’s plug and the multivision display.

STEP 6. Check of short circuit and open circuit in ANT+ line between multivision display connector and antenna base connector
note Prior to the inspection, check intermediate connector D-217, and repair if necessary.

Q. Is the check result normal?
Go to Step 7.
Repair the connector(s) or wiring harness.

STEP 7. Retest the system
Check whether the radio broadcasting can be received.

Q. Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction).
Go to Step 8.

STEP 8. Substitute a known good multivision display, and check the trouble symptom.

Q. Is the check result normal?
Replace the multivision display (Refer to ).
Either repair or replace the antenna rod and antenna base.