After Market Problem Signals Fuse Popped- Car Wont Go into Gear

[mkiisupra]

Originally Posted by i_4got

I'm not sure about OP, but I personally never knew to disconnect the battery (or whatever it is you guys are talking about). Can you please clarify which modifications would require disconnecting the battery first? As CircuitJerk said above, replacing a bulb wouldn't require doing this, but what would? From this discussion, it sounds like replacing the flash relay is one of these mods that require disconnecting the battery first. What else?

Its best to disconnect the battery ANYTIME a metal object could fall across any bare metal electical connections, in short (pun intended), get used to doing it. Resetting your electronics is a pain, but so is electrical circuit troubleshooting.

Dropped a socket off a wrench (doing something non-electrical) a few years ago working on my Conti SVT, socket fell to ground but also 'grounded' and blew the megafuse for the whole starting system. $15 for a 175 Amp fuse...

Eric G