need help with fuse 20 in power dist box, details below

[olopezm]

I'm glad you fixed your problem. Thanks for letting the forum know what was the cause of it.

For future reference

Disconnecting the battery while the engine is running used to be a good measure for older vehicles but with all the electronics involved in PCM controlled vehicles it's a DEFINITELY BAD IDEA.

Why is that?

Because the load on the system is being sensed to properly adjust the voltage regulator duty cycle in order to provide the optimal/correct amount of current form the alternator. If you disconnect the battery the system will sense a huge load (open circuit/high impedance condition) and will activate the regulator at 100% duty cycle, since the current has to go somewhere, all of the electric/electronic circuits will be affected (mostly toasted) because of the high current being fed.

Regards,

Oscar.