if you keep blowing this same this repeatably then you need to check your souce power in which this circuit recieves its power from. basically just get any service manual and trace the begining and ending of this circuit. i would be willing to bet that during the drive to your friends house something occurred grounding this circuit out, ecu, circuit relay, and or wiring fault/break. start at the ecu first, unplug neg. bat. cable and then replace the fuse, turn the key to the on position and jump the diagnostic plug and scan the ecu. this should give a pretty good basis from which the origin of this problem began. hope this helps! and good luck.