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Inspection Procedure 3: The radio broadcasting can not be received.
 
 
cautionBefore replacing the radio and CD player, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
 
 
TECHNICAL DESCRIPTION (COMMENT)
In case of FM/MW/LW radio broadcasting cannot be received., shark fin antenna base (fin antenna), antenna feeder or radio and CD player may have a problem.
noteThe 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.
 
 
 
TROUBLESHOOTING HINTS
  • The shark fin antenna base (fin antenna) may be defective
  • The antenna feeder may be defective
  • The radio and CD player may be defective
 
 
 
 
DIAGNOSIS
Required Special Tools:
  • MB991223: Harness Set
  • MB992006: Extra Fine Probe
STEP 1. Check the state of the fin antenna.
Is the antenna assembled?
Go to Step 2
Assemble shark fin antenna base (fin antenna).
 
STEP 2. Check to see if inspections are taking place is an area exposed to special electric fields.
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.
Is the check result normal?
Diagnosis complete.
Go to Step 4
 
STEP 4. Check if there is any damage to the fin antenna and antenna feeder.
Is the check result normal?
Go to Step 5
Replace the shark fin antenna base (fin antenna) and antenna feeder.
 
STEP 5. Check the connection of the antenna feeder’s plug and radio and CD player.
Is the antenna feeder’s plug thoroughly connected to the radio and CD player?
Go to Step 6
Thoroughly connect the antenna feeder’s 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 amplifier connector
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.
Is the check result normal?
Replace the radio and CD player.
Either repair or replace the shark fin antenna base (fin antenna).