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Keeps blowing fuse and truck quits

(1990 Chevrolet 2500 Pickup)
in Albuquerque, NM on August 24, 2010
I need to know what the abbreviations stand for on the fuse that is out, they are RWAL TCC ESC ECM thanks
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of FiveStar ServiCenter on August 24, 2010
RWAL - rear wheel anti lock (as in abs)

TCC - torque converter clutch

ESC - electronic spark control

ECM - engine control module
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