Can I connect an a/c switch into the wire containing the clutch engagement sensor?


Modified by 91civicsikid at 4:24 AM 7/26/2008


Modified by 91civicsikid at 4:25 AM 7/26/2008

 

a wise honda-tech member once had on his signiture

"nothing is impossible it just requires more time and money"

 

Not sure I understand what it is you want to do, by "clutch sensor" do you mean "Clutch Interlock Switch" and are you trying to bypass it, use the A/C switch as a kill switch? 94

BTW dth0ng69 the quote is "Nothing is impossible, the impossible takes longer and costs more money"




Modified by fcm at 5:47 AM 7/26/2008

 

My apologies for the vagueness. A first read my post again before even reading your responses and realized how vague it was. But anyway..

I made a diagram.. just 'cause i got bored.. so here you go.



And I guess the better question now is not is.. but how.. is this possible?

 

And if you know anything about electricity you will notice there is no load.. .well the diagram isn't 100 percent. I just drew it for myself. Here is the real diagram (minuce the switch, obviously) I hope this helps.


http://i142.photobucket.com/al...m.gif

 

Well I guess I am going to have to assume you want it as a "kill" switch as you still have not said what you want the switch for.

The CIS, [clutch switch] supplies the starter relays coil with a ground, [blue/black] the other side of coil gets power from the ign. switch, [black/white] so if you want to use the A/C switch as a kill switch all you need to do is disconnect the CISs input, [black] from ground and connect it to the output of the A/C switch, which should be a ground, [to A/C pressure switch] depending on MM&Y of car.
You may also need to rewire the input to the A/C switch to a chassis ground or you will also need to turn on the heat/A/C blower switch, [any speed], as that is where the A/C switch gets it's ground. 94

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote"> Well I guess I am going to have to assume you want it as a "kill" switch as you still have not said what you want the switch for.

The CIS, [clutch switch] supplies the starter relays coil with a ground, [blue/black] the other side of coil gets power from the ign. switch, [black/white] so if you want to use the A/C switch as a kill switch all you need to do is disconnect the CISs input, [black] from ground and connect it to the output of the A/C switch, which should be a ground, [to A/C pressure switch] depending on MM&Y of car.
You may also need to rewire the input to the A/C switch to a chassis ground or you will also need to turn on the heat/A/C blower switch, [any speed], as that is where the A/C switch gets it's ground. 94</TD></TR></TABLE>

There are a couple of problems with that. I don't have air conditioning. It is an si. What is weird though is there is still a place for the switch to plug in as it is plugged in right now. What is weird is the dash light on it works when i turn on my headlights but the smaller light does not turn on when I flip the switch on and off.

I guess my main question in all of this is what guage wire am i dealing with and where is it easiest to get to. And how much wire will I need.

As rediculous as this may sound, I also plan on doing a fuel kill as in the one on here somewhere and tucking the switch by my back seat. Overkill? maybe but I plan on using the "clutch one" just whenever and the fuel one when it's going to be sitting awhile.

 

If the A/C switch is plugged in the illumination light will work.
Have you tried turning on the blower, [any speed] and then seeing if the A/C indicator light comes on?

There should be 5 wires/terminals in the A/C switch plug, colors may be...

1- Green, illumination bulb ground, from "Dash Light Brightness Controller", may also be red.
2- Light green, illumination bulb power, from head light switch, [park light circuit] may also be red/black.
3- Black, ground input, from blower switch, [any speed] may also be green.
4- White, A/C switch output, [ground out when switch is on] to A/C pressure switch, [if you had A/C] may also be blue/red.
5- Blue, power for A/C indicator bulb, [hot when ign. is on] may also be black/yellow, ground for the bulb is internal when A/C switch is on.

Remember for the a/C indicator light to be on the ign. switch must be on, the blower motor switch must be on, [any speed] and the A/C switch must be on. 94

 

Good Call. The light turned on when i turned on the blower.

That is good and bad. It throws something else into the mix but I think I have it figured out.



By looking at this diagram, the blower prevides it with ground, not power. Meaning, O could not use that ground, or my car would not start without the air on, correct?
So what i need to do (correct me, if I'm wrong) is
<U>off a/c switch</U>
Green Wire to Ground (possibly to red wire, depending on if switch is before or after light)
Red Wire and Black/red are good
Black/Yellow is good (blower switch provides ground, not power)
Blue/Red wire to provide the clutch interlock switch with a ground.

Good?

If not, tell me why
If so, tell me how to find this ground after the CIS. Everything else is basically good.

 

As I said, all you need to do is use the output from A/C switch, [blue/red] connect it to the input, [black] of the CIS, [cut black lead and connect the blue/red lead to the CIS end of cut black lead.
You will now have to turn on the blower, turn on the A/C switch and step on clutch for car to start, the blower and A/C switch have to be on only when cranking to start, once engine is running the blower and A/C switch can be turned off or left on, it makes no diff. 94

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">As I said, all you need to do is use the output from A/C switch, [blue/red] connect it to the input, [black] of the CIS, [cut black lead and connect the blue/red lead to the CIS end of cut black lead.
You will now have to turn on the blower, turn on the A/C switch and step on clutch for car to start, the blower and A/C switch have to be on only when cranking to start, once engine is running the blower and A/C switch can be turned off or left on, it makes no diff. 94 </TD></TR></TABLE>

well i planned on just splicing the green wire and connecting it to a ground, therefore bypassing the blower switch. Having to turn the blower on to start the car is a bit much. Well I think I am good. All I need to know is where to locate the CIS

 

The CIS is mounted high up on the clutch lever.

Every layer is a good layer, but easy enough to ground the green lead going to A/C switch. 94

 

where would it be easiest to splice that ground and connect it to the switch?

 

How **** do you want to be?
The best would be the depin the black lead from the CLS plug, "open" the metal terminal up, [unfold crimp] and remove the black lead, tuck it away, no need to cap it, now re-crimp, [and solder] a black lead of the same or larger gauge and long enough to reach the A/C switch, re-pin it into the CIS plug, route the lead neatly to the A/C switch and do the same thing there, only with the green wire/terminal at the A/C switch plug. 94

 

alrighty. I'll update you once I start it. I'm going away for awhile So it will be awhile but I will let you know. Thanks for the help.

 

So I tried messing with this today and realized the clutch interlock switch is pretty much impossible to get to. Do you have a better alternative. It pretty much has to be in that circuit being that I want it to only be affective to anything when starting the car.

 

Not if you what to use the ground out of the A/C switch to supply the CIS, however you could go the the starter relay, disconnect the input lead from the CIS, run it to the A/C switch and connect it to the input, [green], [the one you would have grounded so you would not have needed to turn on the blower switch] then run a lead from the output of the A/C switch, [blue/red] back the the starter relay and connect it to where you disconnected the lead from the CIS.

The CIS will provide the A/C switch with a ground, [instead of the blower switch supplying the ground] then the A/C switch will supply the starter relay with a ground, [when on]. 94

 

Hey. I got my hand on the CIS and traced the wires to where I could get to them and finished the project. It works great! Thanks for the help.