I bought some aftermarket door lock pulleys, what source do I power them from? I tried radio's power, but it keeps burning the fuse.

 

You're tapping it from the yellow wire right? I think your fuse can't handle the amount of power. what fuse you using?

 

are you talking about door lock actuators? are you making your manual locks into power locks? if so, you need to use relays. you're going to blow fuses all day long if you tap your radio... sounds like you need the help of a professional

 

I put 40A fuse there now (orignally it was 15A), and now the fuse doesnt burn, but the actuators barely pull, theres not enough power for them to pull hard enough. I wonder why that happens.

 

it's because you need to use relays. you need to have constant power to the relay from the ignition harness so you get power right off of the battery to the actuators. then they'll pull nice and strong.

 

:doh: I see people do this all the time, and I WILL NOT cover their warranty when they bring the car in with a 40 amp fuse where a 15 amp belongs!!!!!! You need relays, but you need to have a pro do this. Your 40A fuse is kind of like this: in the old days, houses were built with few fuses. But as time went on, and there were more electrical loads, peoples fuses kept blowing. So, to keep them from blowing when the fridge kicked on while the dishwasher was running, they put pennies in the holes: all of a sudden, house fires cause by faulty, overdriven electrical currents shot through the roof. In other words...... HAVE A PRO DO THIS!

 

Definately bring it to one of us or someone in your area that does this professionally. There is nothing like a car electrical nightmare from someone loading up their fuse panel with oversized fuse in hpes that it will solve the problem of blown fuses. You are just creating a fire hazard like fastball said. This is where the "If you dont know what you are doing, take it to someone who does" rule comes into effect.

 

Not only is it a fire hazzard, but depending on what kind of car you have, some electrical systems run through the car's ECM for multiplex control (i.e. the same wire carries ground one second, then +12 vdc, then -12 vdc, then data or signal -- all on the same line) so you may run the risk of blowing your car's ECM, which is only anywhere from 300.00 to 2500.00.

 

Yeah but hopefully he is is a Honda or Acura beign that he is on this site posting his problems. The Dodge and Chrysler vehicles are the biggest problems with multiplex systems and one wire door locks.The 2002 Buick Rendezvous,Ford Escape,and the 2002 Elantra and a few others are one wire but nothing in the Hona-Acura lineups were or are. They are all negative trigger systems except for the CRV(UK) version in 2001 which was a 5wire system, anyway it should be brought to a professional to do this work.

 

Yeah, I should have thought that if he was posting on this board he most likely has a Honda or Acura. New BMWs have insane multiplex --- I don't even touch a Bimer after 1999. They're starting to use fiber optics!