FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Inspection Procedure 15

Distortion on AM or on Both AM and FM.

DIAGNOSIS

STEP 1. Check the degree to which distortion is generated.

Q: How much distortion is generated?

Occasional distortion: Go to Step 2.

Constant distortion: Go to Step 3.

STEP 2.Check the transmission antenna.

Q: Is there distortion by the transmission antenna?

YES: The input from the antenna is too big.

NO: Go to Step 3.

STEP 3.Check how the speakers are set up.

Q: Are any cords coming in contact with the paper cones of the speakers?

YES: Move the cords so that they do not come in contact with the paper cones of the speaker. Check that distortion is resolved.

NO: GotoStep4.

STEP 4.Check the speakers.
1. Remove the speakers.
2. Check to see if there is any ripping of the paper cones or any foreign obstacles in the paper cone.

Q: Are the speakers normal?

YES: Go to Step 5.

NO: Repair or replace the speakers. Check that distortion is resolved.

STEP 5.Check the installation condition of the speakers.

Q: Are the speakers installed correctly?

YES: Replace the radio and CD player. Check that distortion is solved.

NO: Reinstall the speaker(s) correctly. Check that distortion is solved.