Operation CHARM: Car repair manuals for everyone.

Inspection Procedure 16

Distortion on FM Only.

DIAGNOSIS

STEP 1. Check that the distortion persist when the radio is turned to another station.

Q: Does the distortion persist when the radio is turned to another station?


YES: Go to Step 2.
NO: The signal from that station is too weak.

STEP 2. Check that the distortion increase or decrease when the vehicle is moved.

Q: Does distortion increase or decrease when the vehicle is moved?


YES: The cause may be multipath noise.
NO: Repair or replace the radio. Check that a distortion is resolved.