Trouble Shooting

Verify customer's complaint. Ensure battery posts and cables are clean and tight. Inspect drive belt. Inspect battery junction box fuses No. 11 (15-amp) and mega fuse FB (120-amp) located near battery junction box. On vehicle with 3.0L Duratec engine, inspect central junction box fuse No. 16 (10-amp). On all models, ensure connections at generator, regulator and engine ground are clean and tight. If problem is found, repair as necessary. On vehicle with 3.0L Duratec engine, if problem is not found, repair by symptom. See SYMPTOM INDEX  table under SYSTEM TESTS. On models with 2.0L Zetec engine, if problem is not found, perform self-diagnostics. See SELF-DIAGNOSTIC SYSTEM  .