2005 GMC Sierra 2500HD Fuse Box Diagram 2005 GMC Sierra 2500HD Fuse Box Map Fuse Panel Layout Diagram Parts: battery, PCM relay, cust feed, ABS relay, park lamp, VSES/ECAS.rear defog, radio, crank, wiper / washer, stop lamp, cigar lighter, radio amplifier, ignition system, blower relay, ETC/ECM relay, headlamp, front park lamp, fog lamp, prime, horn, …