I try to connect my A518 OD activating by means of switch

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LOBOROJO

LOBOROJO

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I HAVE DOUBTS IN THE CONNECTION.

WOULD APPRECIATE YOUR HELP.

THANK YOU

Screenshot_20190904-213022.png
 
no
I believe power goes to the center pin.Then each of the others is grounded thru the switchs. This is what I have been told.
So in your drawing, the yellow wire should receive 12v power, and the pink should run to one switch, while the dark wire should run to the other. And then on each of those snap-switches, the second pin goes to ground.
The yellow supply wire should come from the ignition run circuit. That's the small-gauge blue wire under the hood, at the ballast resistor.. You can also pull run power out of the fuse box. Or my favorite, run it off a battery powered relay, triggered from the run circuit.
Check out Trailbeasts garage, maybe his set-up is shown there.
 
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AJ/FormS said:
no
I believe power goes to the center pin.Then each of the others is grounded thru the switchs. This is what I have been told.
So in your drawing, the yellow wire should receive 12v power, and the pink should run to one switch, while the dark wire should run to the other. And then on each of those snap-switches, the second pin goes to ground.
The yellow supply wire should come from the ignition run circuit. That's the small-gauge blue wire under the hood, at the ballast resistor.. You can also pull run power out of the fuse box. Or my favorite, run it off a battery powered relay, triggered from the run circuit.
Check out Trailbeasts garage, maybe his set-up is shown there.
Click to expand...


something like that.

20190906_222636.jpg
 
no
In your drawing;
#1 from the Trans connector goes only to one of the switchs, say to the upper switch; and from
#3 only to the other switch, say the lower switch.
Both of the still unconnected snap switch terminals, would then go to any chassis ground

The yellow wire in the center at #2, is the 12v supply and it should go to an ignition circuit that is hot in Run and turns off with the Ignition switch.
I assume the box in the upper left is a relay, But it appears not to be connected correctly. But it's hard to tell by the identifiying letters.Just make sure it is a fused source that turns on and off with the ignition switch.
 
Last edited:
AJ/FormS said:
no
In your drawing;
#1 from the Trans connector goes only to one of the switchs, say to the upper switch; and from
#3 only to the other switch, say the lower switch.
Both of the still unconnected snap switch terminals, would then go to any chassis ground

The yellow wire in the center at #2, is the 12v supply and it should go to an ignition circuit that is hot in Run and turns off with the Ignition switch.
I assume the box in the upper left is a relay, But it appears not to be connected correctly. But it's hard to tell by the identifiying letters.Just make sure it is a fused source that turns on and off with the ignition switch.
Click to expand...


I assume the box in the upper left is a relay.

is a switch :)
I greatly appreciate the help.
 
LOBOROJO said:
I finally understood, many, many thanks for your help. :)
Click to expand...

I have questions! I’m doing this exact same setup. So, to make sure I’m following, 12v+ to one side of the OD plug, and a “switched” ground to the other side?

Safety switch center pin was 12v+ (in my case from my push button) and the pin closest to the front continues on to my starter, and the rear pin is to my reverse lights?
 
!!!NO!!!!! There are TWO SEPARATE connectors on hydraulic trans with OD.

1...The neutral safety switch sticks out "horizontally." This is the 3 pin switch---the center pin goes up to the starter relay and GROUNDS the relay in park or neutral so that it will operate when powered from the ignition switch "start" power

The two outside terminals are the reverse switch. One terminal gets 12V from ignition switch, and the other outside terminal powers up the reverse lights with transmission in reverse

2....The OD switch points upwards VERTICALLY and is mounted somewhat above the NSS on a "shelf" near the shifter shaft. This one is the switch which is discussed earlier in this thread.

Here we go........a photo stolen from the web.......

A-5182-pinplug_zpsc18420ae.jpg
 
patc transmission web site has the diagram and complete kit . kit is about 80 but is for od and lock up.
 
67Dart273 said:
!!!NO!!!!! There are TWO SEPARATE connectors on hydraulic trans with OD.

1...The neutral safety switch sticks out "horizontally." This is the 3 pin switch---the center pin goes up to the starter relay and GROUNDS the relay in park or neutral so that it will operate when powered from the ignition switch "start" power

The two outside terminals are the reverse switch. One terminal gets 12V from ignition switch, and the other outside terminal powers up the reverse lights with transmission in reverse

2....The OD switch points upwards VERTICALLY and is mounted somewhat above the NSS on a "shelf" near the shifter shaft. This one is the switch which is discussed earlier in this thread.

Here we go........a photo stolen from the web.......

View attachment 1715659169
Click to expand...

Yup, understand they are diff. Good on the OD setup. Trying to understand how to make the NSS work for my build. Gen III Hemi swap, push button start. I need to run my 12v through the NSS (inline) on its way to the starter solenoid. Need the safety switch to complete the circuit, or conversely interrupt it if not in neutral. Has stand alone engine harness and aftermarket chassis harness so all OEM wiring is out. Does the NSS ground itself or only complete the circuit ran through it?
 
OK NSS is ground only. So you need a relay, or else if you are using an aftermarket shifter, AKA Hurst etc some of those have a series wired type switch. But even those are "light duty" switches, and need a relay. Modern Mopars like hemis and Magnums used Bosch style relays so that would work.
 
67Dart273 said:
OK NSS is ground only. So you need a relay, or else if you are using an aftermarket shifter, AKA Hurst etc some of those have a series wired type switch. But even those are "light duty" switches, and need a relay. Modern Mopars like hemis and Magnums used Bosch style relays so that would work.
Click to expand...
So NSS really is only going to serve my need for reverse lights? It won’t really interrupt starting circuit? (Unless adding in a relay that closes when the NSS grounds)
 
No the NSS is two separate switches in one "box." The two outer pins are one switch, which is for reverse. The center pin is the NSS which is a separate switch, and it goes to ground in park or neutral

What is so hard? About using a relay. EASY. Look up "Bosch Relay"

mini-automotive-relay-wiring-840x.jpg


Connect 30 to a substantial 12V power, as this runs the solenoid which draws a fair amount of current, use no12 wire and it really should be fused/ breaker

The solenoid connects to the "normally open" (NO) contact, 87

85 is one end of the coil and you run a wire from here to the center pin of your NSS

86 is the coil "hot" end and this goes to one end of your start source, in this case your push button. Other terminal of push button goes to 12V. This can be light duty wire as the coil draws little

87A does not get connected.
 
67Dart273 said:
No the NSS is two separate switches in one "box." The two outer pins are one switch, which is for reverse. The center pin is the NSS which is a separate switch, and it goes to ground in park or neutral

What is so hard? About using a relay. EASY. Look up "Bosch Relay"

View attachment 1715659196

Connect 30 to a substantial 12V power, as this runs the solenoid which draws a fair amount of current, use no12 wire and it really should be fused/ breaker

The solenoid connects to the "normally open" (NO) contact, 87

85 is one end of the coil and you run a wire from here to the center pin of your NSS

86 is the coil "hot" end and this goes to one end of your start source, in this case your push button. Other terminal of push button goes to 12V. This can be light duty wire as the coil draws little

87A does not get connected.
Click to expand...
Same relay setup I’m using for my fan and fuel. So we may be saying the same thing. I could essentially use the center pin on the NSS as the 85 ground of my relay, giving me a “safety Neutral Switch”, yes?
 
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