Inspection Procedure 15
INSPECTION PROCEDURE 15: Noise Appears During Vibration or Shocks.DIAGNOSIS
STEP 1. Check the fit of antenna feeder cable.
Q: Is the antenna feeder cable fitted securely?
YES : Go to Step 2.
NO : Ensure that the antenna base and the radio and CD player or radio, CD player and CD changer are fitted securely. Check that there is no noise.
STEP 2. Check radio and CD player connector C-111 or radio, CD player and CD changer connector C- 111, C- 116, C-117 and amplifier connector C-113, C-114 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are radio and CD player connector C-111 or radio, CD player and CD changer connector C- 111, C- 116, C-117 and amplifier connector C-113, C-114 in good condition?
YES : Go to Step 3.
NO : Repair or replace the component(s). Check that there is no noise.
STEP 3. Check that noise appears when the radio switch is turned on while the vehicle is stopped and the radio is tapped while tuned away from a station.
NOTE: Body static electricity from the shock absorber rubber bushings used to prevent vibration, tires, etc. occurs because of separation from the ground, causing a buzzing noise. Since no measures can be taken to discharge the static electricity of the vehicle body. Check that there is no noise.
Q: Does noise appear when the radio switch is turned on while the vehicle is stopped and the radio is tapped while tuned away from a station?
YES : Go to Step 4.
NO : It may be static electricity noise.
STEP 4. Verify that the radio is correctly grounded.
Q: Is the radio correctly grounded?
YES : Go to Step 5.
NO : Check that there is no noise.
STEP 5. Check by replacing radio and CD player or radio, CD player and CD changer.
Q: Do the other radio and CD player or radio, CD player and CD changer work normally?
YES : Either repair or replace the original radio and CD player or radio, CD player and CD changer. Check that there is no noise.
NO : Either repair or replace the antenna assembly. Check that there is no noise.