joecar

If switch is unplugged:
this is the same as the switch being open always (i.e. never being pressed), it has no effect, the TCS would still be on.

If power was cut (pink wire): this is the power to the led on the switch, it would keep the led off, but the TCS would still be on.

618HAWK's description is correct, and that's what the SLP TCS reverser does.

ninobrn99's post contained a link to a buildable circuit that does this (parts are readily available at Radio Shack).

Bad30th

iTrader: (13)

Are you saying that I won't be able to spin the tires (i.e. TCS will be 'on') with it unplugged and the 'TCS OFF' light illuminated on the dash ?

I've done this at the track before and I don't recall having any burnout problems...

I will do a quick test later today.

As always, sheesh, I could be wrong, but...

Rob (Bad30th)

joecar

With TCS switch unplugged,
With TCS switch LED Off (removed pink wire),
TCS is still on.

You'll still be able to spin tires but TCS will try to kick in
(retard timing, close throttle, apply rear brakes).

You were thinking to unlpug the Throttle Relaxer (located near battery);
this may disable the TCS (or only part of it).
Yes let us know of your test results.

To be sure, either install a reverser or just press the switch everytime you start the engine.

WS6FirebirdTA00

iTrader: (33)

i am going to try to unplug the switch like rob said and see if my tcs off light comes on. i know i can push the switch, and its real easy, i just thought a master switch would be neat lol

WS6FirebirdTA00

iTrader: (33)

ok that didnt work. this whole time i thought that it turned tcs off if that was unplugged like they were saying. i guess if the motor for the pedal relax is killed it turns off but i aint worrying about it lol

Bad30th

iTrader: (13)

Sorry I wasn't more clear, I meant unplugging the TCS module at the connection at the bottom of the module, behind the battery.

I am still at work, will test tonight when I get home.

...and yeah, I mostly just use the console switch. I unplugged it for a trip to the track once though, to ensure I wouldn't forget to turn the switch off... It only takes once of looking like an idiot sitting by the water box trying to do a burnout with the TCS on. Went like this :

Rob (Bad30th)

WS6FirebirdTA00

iTrader: (33)

haha yeah i think that has happened to us all once or twice

ninobrn99

iTrader: (8)

i rememeber i was in the staging lanes and they had a hold up, so i cut the car off. im sure you can figure out what button i forgot to hit

http://www.afterthoughtsauto.com/slpcamconrev.html
im gonna get it. Im going to see if I can mimic it. I figure if I can, when i go on deployment, i can make 5 months worth and be resonably cheaper than slp

Bad30th

iTrader: (13)

Weeeeeelllll, I think you guys may be on to something here...

I can break the tires loose but the car feels anemic. It's not pulling the throttle out from under my foot like normal TCS behavior but I think it is indeed pulling timing or something (would have to scan to know for sure). I didn't have time tonight to do any back to back testing with the module plugged back in.

Good info. Jeez, I cut a 1.8 60' and went 12.6@110 with the TCS unplugged like that when I was a heads/cam car, who knows if I woulda had the TCS plugged in... Still haven't gotten to the track yet with the new setup - getting real close !

Thanks for the info guys, God I love this board.

Rob (Bad30th)

joecar

Rob,

So, this was with this connector unplugged (see image, located behind battery), right...?

Joe

Bad30th

iTrader: (13)

Exactly.

I plugged it back in for the drive to work this morning and my SOTP meter tells me the car feels like it has more power with the switch turned off than with the connector unplugged last night.

I'd have to scan/log both to be 100% sure though, it is real early in the morning and I need coffee. However, in the past my SOTP meter has proved to be pretty accurate...

Hey, somebody else try it too !

Rob (Bad30th)

WS6FirebirdTA00

iTrader: (33)

when i turn the switch off my car is definately faster. i think before it even sets a low trac light if the tires spin it pulls timing. i have felt the throttle come back on me before without the ligth comming on. it just feels sluggish and inconsistent unless i turn it off

joecar

This connector is on the "Accelerator Control and Adjuster (ACA)" and the pulley mechanism inside the round cover is called the "Throttle Relaxer"; when this connector is unplugged, the TCS is still enabled, but it will not be able to push the throttle closed.

That's the same as what I find...
ACA connector unplugged: wheels spin (but not too good, rather weak), no throttle push back but engine seems down on power; need to see spark timing with scan tool, but it's probably retarded; I should have checked the rear brake disks for heating (but I didn't think about the brakes till later).

Joe

Phoenix 5.7

iTrader: (7)

what about remiving the TCS/ASR fuse, that should completey disable the entire system wouldn't it?

joecar

Removing the TCS fuse would only disable the "Accelerator Servo Control Module" (ASM) and the "Accelerator Control and Adjuster" (ACA) module";

This still leaves the TCS enabled since the EBCM is still powered,
but I don't know what the EBCM does when the ASM is not responding.

CamTom12

iTrader: (1)

So the switch momentarily grounds E to F...

Anyone know the Amps in E?