Inspection Procedure 11

INSPECTION PROCEDURE 11: Noise: Some Noise Appears when there is Vibration or Shocks during Traveling.

DIAGNOSIS

STEP 1. Check radio and CD player connector C- 102 and amplifier connector D-27 for damage.

Q: Are radio and CD player connector C-102 and amplifier connector D-27 in good condition?

YES: Go to Step 2.
NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that there is no noise.

STEP 2. 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 electric 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 3.
NO: It may be static electricity noise.

STEP 3. Check that the radio is correctly grounded.
The radio is connected to the ground with an assembling screw.

Q: Is the radio correctly grounded?

YES: Go to Step 4.
NO: Tighten the screw securely. Check that there is no noise.

STEP 4. Check by replacing radio and CD player.

Q: Do the other radio and CD player work normally?

YES: Either repair or replace the original radio and CD player. Check that there is no noise.
NO: Either repair or replace the antenna assembly. Check that there is no noise.