Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

STEP 1. Check the state of the antenna.
Check that there is no damage or crack in the roof antenna.

Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Repair or replace the roof antenna.
STEP 2. Check that the noise occur when the engine is stopped or the engine is running.
Q: Does noise occur when the engine is stopped or the engine is running?

When the engine is stopped: Go to Step 3.

When the engine is running: Check the vehicle's noise suppressor (Refer to INSPECTION PROCEDURE 13 ).
STEP 3. Check that the noise fades away by the following actions.
1. Tune to a station with a stronger wave.
2. Adjust the sound quality to suppress high tones.
  Q: Is the noise eliminated?
  - YES: This diagnosis is complete.
  - NO: Go to Step 4.
STEP 4. Check that the radio and CD player is correctly grounded
The radio is connected to the ground with an assembling screw.

Q: Is the radio correctly grounded?
- YES: Go to Step 5.
- NO: Assemble the radio and CD player into the vehicle.
STEP 5. Check the antenna plug is connected to the radio and CD player.
Q: Is the antenna plug thoroughly connected to the radio and CD player?
- YES: Go to Step 7.
- NO: Go to Step 6.
STEP 6. Check that the noise is eliminated when the antenna plug is properly attached.
Q: Is the noise eliminated?
- YES: This diagnosis is complete.
- NO: Go to Step 7.
STEP 7. Check that the antenna is in good condition and is it properly mounted.
Q: Is the antenna in good condition and is it properly mounted?
- YES: Consult the radio manufacturer's service center.
- NO: Repair or replace the roof antenna.