Inspection Procedure 6: The FM/MW/LM Radio Broadcasting can not be Received.
| caution | Whenever the multivision display is replaced, ensure that the power supply circuit and the earthing circuit are normal. (Check that the voltage is 10 V or more.) |
COMMENTS ON TROUBLE SYMPTOM
| 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
- Malfunction of roof antenna (antenna rod, antenna base)
- Antenna feeder malfunction
- Malfunctions of multivision display
DIAGNOSIS PROCEDURE
STEP 1. Check the state of the roof antenna.
Q.
Is the roof antenna assembled?
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?
STEP 3. Move the vehicle and check the radio.
Q.
Is the check result normal?
STEP 4. Check damage in the roof antenna (the antenna rod, the antenna base).
Q.
Is the check result normal?
STEP 5. Check the connection of the antenna plug and multivision display.
Q.
Is the check result normal?
STEP 6. Substitute a known good multivision display, and check the trouble symptom.
Q.
Is the check result normal?