2 Da Max

iTrader: (2)

ok so im wiring a relay on my car,its suppose to keep something off, unless i place somethin on it

but instead its always on, and when i place something on it, it turns off.

need help


ok its a bosch relay

here goes


85 and 87 are getting power

87a is the ground

86 and 85 have the other sides of the wire that are not powered

pmohr

iTrader: (26)

There are normally closed relays, and normally open. You have an NC, you need an NO.

2 Da Max

iTrader: (2)

how do i know which one is which? ok also have a tyco one besides the bosh


would i damage anything if switch the wires on the relay?

JSutter

iTrader: (46)

86 and 85 are trigger.
30 connects to 87a with no power.
30 connects to 87 when power is supplied.

basics:
http://www.bcae1.com/relays.htm

2 Da Max

iTrader: (2)

right now i have 30 and 87

should i put it at 30 and 87a?

but when i put the ground on 87 the relay sparks, and doesnt spark when i have it on 87a

shavedmax

iTrader: (6)

i dont think i've ever used 87a on a relay. i dont have one in front of me but i think normally 85 and 86 are the trigger(one being grounded and the other giving power ( in your instance you place something on it). then 30 and 87 are power and what you want to turn on.


edit, i just read jsutter's, his is much simpler to undertand

LatinMax

iTrader: (1)

Wrong: Bosch does both.
Correct

shavedmax

iTrader: (6)

is it just me or are the quotes the same?

2 Da Max

iTrader: (2)

ok still not working.. tried it as much ways as possible

99se5spd

85 to ground
86 to "unless i place something on it" which should be +12v
30 to +12v
87 what you want to turn on