Inspection Procedure 4: The AM/FM radio broadcasting cannot be received: Diagnosis
- STEP 1. Check the state of the antenna rod and antenna base.
Q: Is the roof antenna assembled?
- YES: Go to Step 2.
- NO: 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?
- YES: Go to Step 3.
- NO: 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?
- YES: Diagnosis complete.
- NO: Go to Step 4.
- STEP 4. Check damage in the roof antenna (the antenna rod, the antenna base).
Q: Is the check result normal?
- YES: Go to Step 5.
- NO: Replace antenna rod or antenna base.
- STEP 5. Check the connection of the antenna plug and multivision display.
Q: Is the check result normal?
- YES: Go to Step 6.
- NO: Replace the antenna rod, antenna base and antenna fender.
- STEP 6. Check multivision display connector C-105 and antenna amplifier connector C-15 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are multivision display connector C-105 and antenna amplifier connector C-15 in good condition?
- YES: Go to Step 7.
- NO: Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION .
- STEP 7. Check the wiring harness between multivision display connector C-105 (terminal 14) and antenna amplifier connector C-15 (terminal 1).
- Check the communication line for open circuit and short circuit.
Q: Is the wiring harness between multivision display connector C-105 (terminal 14) and antenna amplifier C-15 (terminal 1) in good condition?
- YES: Go to Step 8.
- NO: The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary.
- STEP 8. Substitute a known good multivision display, and check the trouble symptom.
Q: Is the check result normal?
- YES: Replace the multivision display.
- NO: Either repair or replace the antenna rod and antenna base.