Convert a positive output to a negative output.
Ground switch relay.
Connect the positive lead to the high beam positive wire and the relay ground to the chassis.
The sending unit has two male spade connectors one of which will go to the black wire on the relay and the other needs to go to a ground.
Pin 30 is connected to the device that needs a ground connection.
Viewed 7k times 1 begingroup i am having a 3 pin relay used in bike horns.
See all 8 photos it s wise to use a star washer to.
When this is the case use the following diagram.
Touch the 86 wire to the battery s positive post and the 85 wire to the battery s negative post.
My need is to turn on and off ground using the positive as trigger.
Often it is necessary to provide a stronger ground than the negative output of an alarm or keyless entry can provide.
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Weak negative output to strong ground output.
Pin 85 is the positive signal from whatev.
Connect the ground wire from the relay to the high beam positive wire so the fog lights will turn off when the highs are on.
Can we switch ground in relay.
How to wire automotive spdt relays.
Attach one spade connector to relay terminal 86 coil.
To test the relay itself take two wires each about a foot long with a female spade terminal at one end and stripped at the other end.
Attach the other to relay terminal 85 coil ground.
The relay system s logic allows operation of the motor operated disconnect switch when there is no voltage on the transmission line to provide automatic isolation of the faulted power transformer and to allow reclosing operations of the remote breakers to restore service to the transmission line and to all other loads fed by this line.
Connect the 12 volt positive lead to the positive wire on the parking lights.
For driving or roof lights.