Inspection Procedure 3: The radio broadcasting cannot be received. <Roof antenna>


caution Before replacing the radio and CD player, 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., antenna rod, antenna base, antenna feeder cable or radio and CD player 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 is 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, antenna base and antenna feeder cable.


Q. Is the check result normal?

Go to Step 5.

Replace the antenna rod, antenna base and antenna feeder cable.

STEP 5. Check the connection of the antenna feeder cable plug and radio and CD player.


Q. Is the antenna feeder cable plug thoroughly connected to the radio and CD player?

Go to Step 6.

Thoroughly connect the antenna feeder cable plug and the radio and CD player.

STEP 6. Check of short or open circuit in ANT+ line between radio and CD player connector and antenna base connector.


Q. Is the check result normal?

Go to Step 7.

Repair the connector(s) or wiring harness.

STEP 7. Substitute a known good radio and CD player, and check the trouble symptom.


Q. Is the check result normal?

Replace the radio and CD player.

Either repair or replace the antenna rod and antenna base.