Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

Radio Inoperative:
1. Check Fuse 2. If open, check CKT 340 for a short to ground.
2. Check Fuse 9. If open, check CKT 43 for a short to ground.
3. Check that G200 is clean and tight.

Radio Noise:
1. Test the Radio outside with the hood down.
2. Ignition noise on FM indicates a possible defective High Energy Ignition (HEI) System.
3. If a test antenna is used, ground the base of the antenna to the car body.
4. When shielding components, use aluminum foil tape and ground both ends of the shield.