Andy MOD 2.0 w/real TRAC Off Switch
- Thread starter MStudt
- Start date
nor_cal51501
New member
Great write up buddy. Now I'm jealous and will probably convert my switch so it can be depressed for closed and pressed for open. Also thanks for the shout out, glad I could help you get it figured out.
tre9er
New member
I thought this was a switch that was closed by pressing, didn't stay depressed but stays closed, then resets to open when the vehicle is shut off?
MStudt
official vendor
This switch is a normally open/closed switch. The relay is needed to get it to act the other way, closed/open. A normally open switch won't allow you to do anything you want. By adding the relay the switch will act like it's normally close/open (what you want). Most people just choose a closed/open switch and avoid having to wire in a relay.
Closed keeps the system functioning. Open disables the system. You press and hold the button for a couple seconds and then release it. Once you release the button the switch becomes open, and stays that way until you restart your 4runner.
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tre9er
New member
That was all I needed to hear. I just want something that resets back to OEM when I shut the engine off, so I can't accidentally leave my wife without VSC by forgetting to flip a switch.
MStudt
official vendor
The ECU will reset it back as long as you have a momentary switch.
tre9er
New member
Right. We're just interrupting the circuit for a second to get it to throw a code, right?
MStudt
official vendor
Correct. But if you were to use a push button or toggle it would stay disabled until you push the button or flipped the toggle again. Momentary switch revert back to the original position once power is cut. A push button or toggle will remain disabled until you physically push the button again.
tre9er
New member
Yep, and that's what I want, momentary. Glad I ordered the right switch! Thanks [MENTION=98153]MStudt[/MENTION] !
tre9er
New member
Success!
Couldn't have been easier, except tight working conditions at the harness, but it's done, tested, and I can now disable VSC on the fly with a Toyota Trac Off switch!
I also tried the key-off trick while driving, to reset things, and that worked flawlessly too. Just take foot off gas, turn key to ACC for half second, then back to ON. Don't crank starter obviously, just turn baCk to ON and voila, lights in dash go off!
Thanks [MENTION=98153]MStudt[/MENTION] and the OG Andy as well as beto, too! I can't wait for some mud to try this out on!
Couldn't have been easier, except tight working conditions at the harness, but it's done, tested, and I can now disable VSC on the fly with a Toyota Trac Off switch!
I also tried the key-off trick while driving, to reset things, and that worked flawlessly too. Just take foot off gas, turn key to ACC for half second, then back to ON. Don't crank starter obviously, just turn baCk to ON and voila, lights in dash go off!
Thanks [MENTION=98153]MStudt[/MENTION] and the OG Andy as well as beto, too! I can't wait for some mud to try this out on!
tre9er
New member
[MENTION=98153]MStudt[/MENTION] I think your diagram has the descriptions for 87 and 87a backwards. As I see it, 87a is normally closed, thus keeping the circuit in-tact at all times UNTIL the switch is pressed and the relay flips the circuit open, thus breaking the connection and throwing VSC/Trac off. Right?
See here:
87a is normally closed (connected to 30)
Unless the mfr. is saying "use 87a if your switch is normally open"
See here:
87a is normally closed (connected to 30)
Unless the mfr. is saying "use 87a if your switch is normally open"
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MStudt
official vendor
[MENTION=98153]MStudt[/MENTION] I think your diagram has the descriptions for 87 and 87a backwards. As I see it, 87a is normally closed, thus keeping the circuit in-tact at all times UNTIL the switch is pressed and the relay flips the circuit open, thus breaking the connection and throwing VSC/Trac off. Right?
See here:
87a is normally closed (connected to 30)
Unless the mfr. is saying "use 87a if your switch is normally open"
Fixed
The diagram on the relay is in the active or energized state. See the placement of the coil and how it is pulling the contact towards it. So he was correct in his digram.
tre9er
New member
If that were the case the wiring would not work as [MENTION=98153]MStudt[/MENTION] and I have it. The circuit would be open until the relay was energized and thus VSC/Trac would be always disabled.
MStudt
official vendor
[MENTION=96546]tre9er[/MENTION] is correct. The original had 87a as normally open when it should have been normally closed, and 87 as normally closed when it should have been normally open. Below is how it should have been, but I have the open/closed flipped in the picture but not in my wiring.
You were correct, and the picture has been updated.
I try to make the meetings and I get out and wheel about once a month.
