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Home >> GMC >> 1998 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Electrical >> Starter >> Starting System >> Trouble Shooting >> Trouble Shooting Hints

Trouble Shooting Hints

On all models, note condition of SECURITY indicator light. If indicator stays on or flashes continuously, see ANTI-THEFT SYSTEM article in ACCESSORIES & EQUIPMENT section. Check starter solenoid terminals and battery grounds. Check for proper installation of aftermarket electronic equipment. Perform self-diagnostic system test, to be certain no trouble codes are stored in PCM memory which may lead to misdiagnosis. See appropriate TESTS W/CODES article in ENGINE PERFORMANCE section:

Check 40-amp No. 6 fuse in underhood fuse-relay center, and 10-amp CRANK No. 8 fuse in instrument panel fuse block. Check battery and underhood fuse relay center grounds. See COMPONENT LOCATIONS  table.