the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

How To Use A DPDT Relay With One Microswitch?


Post ReplyPost New Topic
< Prev Topic Next Topic >
maxmodder 
Member - Posts: 30
Member spacespace
Joined: September 28, 2006
Location: United States
Posted: May 10, 2023 at 2:55 PM / IP Logged Link to Post Post Reply Quote maxmodder
I have a single microswitch that I am needing to hook up 2 sets of wires to it such that when the microswitch is closed, both sets of wires connect to each other. One set of wires contains a ground (A) and the other set of wires contains a fused ignition feed (E)
A, B, C, D, E, and F are identified in the link below.
So when the microswitch is in the closed position, I need wires A and B connected to each other AND also E and F need to come together when that same microswitch is in the closed position. Also the combo of A and B cannot make contact with the combo of E and F regardless if the microswitch is in open or closed state. The C and D is on a separate microswitch which is activated when the aftermarket shifter is in the reverse position. The microswitch that A and B as well as E and F need to connect to is activated when the shifter is in the PARK position. The shifter only has provisions for 2 microswitches one activated in PARK and a separate one activated in REVERSE. If a 3rd microswitch could be added, it would make this task much easier but there is no room for it on the shifter to install it. Also a DPDT microswitch is not available in the size that it needs to be in order to fit in this aftermarket shifter to replace the 2 terminal microswitch that is activated when the shifter is in the P/N position, so that option is unfortunately a no go.
As you can see in the image below, "A" is a ground wire and "E" is a fused ignition feed in the table below. The full schematics of the wiring are listed below as well. The factory shifter accomplishes the task of combining A to B, and E to F when in Park and C to D when in reverse through 3 microswitches, but the use of the aftermarket shifter and lack of a 3rd microswitch is the challenge. As you can see, combing A and B tells the PCM that the shifter is in the PARK position so that the PCM can differentiate when the shifter is in gear vs park/neutral. Combing E and F enables the car to actually start while the car is in the PARK position, essentially a neutral safety switch. C and D combined allow the cars reverse lights to come on when in REVERSE position. Also A and B combined allow for the trunk release mechanism to work and it will only open when the car is shifted in Park/Neutral. Normally you could just jumper A and B together but that will send a constant signal to the PCM that the car is always in park, which creates issues in the tuning tables for when the car is not in park and actually in gear.
Can I use a DPDT relay to accomplish what I'm needing to do with this single microswitch or do I need to use 2 separate SPST relays somehow? And how would I go about wiring it up to the various pins on the relays?
The schematics can be found here:
https://drive.google.com/file/d/174Byx8KL3uj1fa3--eE86EeBajC6eUVZ/view
i am an idiot 
Platinum - Posts: 13,679
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: May 10, 2023 at 7:03 PM / IP Logged Link to Post Post Reply Quote i am an idiot
https://drive.google.com/file/d/174Byx8KL3uj1fa3--eE86EeBajC6eUVZ/view
Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB
maxmodder 
Member - Posts: 30
Member spacespace
Joined: September 28, 2006
Location: United States
Posted: May 10, 2023 at 8:02 PM / IP Logged Link to Post Post Reply Quote maxmodder
The microswitch is a D3V-16G4-3C5-K
16 (3) A at 250 VAC
0.5 mm (G gap)
Simulated roller lever
hinge position is Internal/Far from plunger
SPST-NO
Quick-connect terminals (#250)
Max operating force of 1.96 N {200 gf}
2.9 mm mounting holes
How To Use A DPDT Relay With One Microswitch? -- posted image.
Not sure if they make a DPDT microswitch in these same dimensions/specs that would work?
Maybe using 2 relays would work like this, but prefer a single DPDT relay if possible or a DPDT microswitch in these same dimensions/specs.
How To Use A DPDT Relay With One Microswitch? -- posted image.
maxmodder 
Member - Posts: 30
Member spacespace
Joined: September 28, 2006
Location: United States
Posted: May 10, 2023 at 9:14 PM / IP Logged Link to Post Post Reply Quote maxmodder
Can a single DPDT also work to save on space? Not sure if my wiring is correct:
How To Use A DPDT Relay With One Microswitch? -- posted image.

If you wish to post a reply to this topic, you must first login.
If you are not already registered, you must first register.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Thursday, June 13, 2024 • Copyright © 1999-2024 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer