INSPECTION PROCEDURE 14: 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). Refer to HARNESS CONNECTOR INSPECTION . 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.