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Clutch Pedal Switch

  • Thread starter Thread starter JD1964
  • Start date Start date Jan 26, 2017
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JD1964

there is enough sticking out to grab on to
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#1
  • Jan 26, 2017
  • #1
Theres two switches on the clutch mechanism under the dash. One is the starter safety switch. On the other side there's another. What is that one for? Here's a pic

 

General karthief

wonder how much it would cost to ship you a pair
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#2
  • Jan 26, 2017
  • #2
I think thats what makes the connection with the computer thats a best guess, I can check my magic book or @jrichker or @90sickfox can help
 

Dan02gt

mazing how much gas smell came from that tiny hole
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#3
  • Jan 26, 2017
  • #3
I'm pretty sure the other one is the kill switch for the cruise control.
 
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General karthief

wonder how much it would cost to ship you a pair
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#4
  • Jan 26, 2017
  • #4
Ahhh, forgot about that, I've been using my right foot for controlling my cruzin
 

JD1964

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#5
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Dan02gt said:
I'm pretty sure the other one is the kill switch for the cruise control.
Click to expand...

Hmm. I thought the starter safety switch doubled as the cruise control cut off. The starter safety switch has two harness plugs. I thought one was to control the starter and the other to kill the cruise. Then, there 's this other on on the other side that I'm trying to figure out what it does. I could be wrong
 

90sickfox

Wasn't a pretty sight...and I've got big hands
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#6
  • Jan 26, 2017
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Looking closer at that pic... I have no idea what that is. I don't recall ever seeing a switch like that below the quadrant.

The cruise control vacuum runs to a vacuum switch at the brake pedal.. Cruise control uses the brake switch.

Can you find the wire colors or where it connects to ?
 

HotFox

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#7
  • Jan 26, 2017
  • #7
I think that deactivates the Flux capacitor so if you have the clutch in at 88mph you will not have a malfunction during time travel.
 
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liljoe07

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#8
  • Jan 26, 2017
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That switch is the cruise control shut off.
 

Mustang5L5

That is…until I whipped out my Bissell
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#9
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The one in the pic is the cruise control dump

The two on the pedal arm are the starter interrupter, and the Nuetral sense circuit
 

JD1964

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#10
  • Jan 26, 2017
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I just did some exploratory test driving.

As you know, the starter safety switch engages when you push the clutch pedal completely to the floor. You can see that it functions that way when you look under there and push the pedal down. This other switch over on the quadrant side is closed when the clutch pedal is in released position. It opens almost immediately when you begin to depress the clutch.

I drove along with cruise set at 50mph. Tapped the brake and the cruise shut off. Reset cruise to 50mph and continued. I slightly depressed the clutch (didnt touch the brake), and the cruise shut off.

Conclusion: The switch pictured does actually shut off the cruise.
 
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JD1964

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#11
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liljoe07 and Mustang5L5 beat me to the punch as I was typing
 

JD1964

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#12
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Mustang5L5 said:
The one in the pic is the cruise control dump

The two on the pedal arm are the starter interrupter, and the Nuetral sense circuit
Click to expand...

I understand the starter interrupter.

I'm curious, how does the neutral sense circuit play a role in the 5spd application? What about the clutch position has anything to do with the trans being in neutral or not?

I've been learning about these switches because I'm chasing an issue with stalling when I push the clutch in. But I have more info on that (whole other subject) LOL I'll start another thread about that.
 

liljoe07

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#13
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Let's the computer know it's in gear or not. Idle and emission strategy is effected or altered based on in gear or in neutral states.
 

JD1964

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#14
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Ok, so the computer wants to know what position the clutch is in when the trans is in neutral? Is that it?
 

liljoe07

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#15
  • Jan 26, 2017
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No, it's let's the computer know if the trans is in neutral. Technically speaking, clutch down means engine should be coming to idle. Not really clutch position. NGS(neutral gear switch) is the correct term for the switch. As well as the switch on the side of the trans. They work in unison to provide the computer the input for in gear or in neutral.
 
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90sickfox

Wasn't a pretty sight...and I've got big hands
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#16
  • Jan 26, 2017
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That switch wasn't in my 89 and it was 5 speed and had cruise. Unless I don't remember. I've had the pedal assembly out several times and never saw that switch.

I think I'm losing my touch...

Disclaimer ; I'm not the the brightest, unless I've been drinkin'
 
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JD1964

there is enough sticking out to grab on to
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#17
  • Jan 26, 2017
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90sickfox said:
That switch wasn't in my 89 and it was 5 speed and had cruise. Unless I don't remember. I've had the pedal assembly out several times and never saw that switch.

I think I'm losing my touch...

Disclaimer ; I'm not the the brightest, unless I've been drinkin'
Click to expand...

Its weird for me. If I go out and have a few beers then come home, last thing I want to do is start working on car, or at least I cant seem to get it going. However, If I walk into my garage basically sober with a fridge full of beer, I can start drinking and work on cars all night long while continuing to drink. But I've gotten wise and avoid any test driving late in the process
 
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Mustang5L5

That is…until I whipped out my Bissell
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#18
  • Jan 27, 2017
  • #18
You'll get a code 67 if the NGS isn't configured correctly
 

JD1964

there is enough sticking out to grab on to
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#19
  • Jan 27, 2017
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If I bypass the starter interrupt but leave the NGS connected, will it throw codes or cause any other hassles?
 

Mustang5L5

That is…until I whipped out my Bissell
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#20
  • Jan 27, 2017
  • #20
Not as long as it can close and make a connection when you press clutch in.

If you take off both plugs, a 5A blade fuse fits in the plug perfectly
 
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