Can we do this? (aka The DIY Cruise Control Thread)

[nickhjort]

Found it...nevermind :) Also they got my Clutch switch at the nearby dealer for 19 bucks. So I'll just splurge and pick me up one of those later this week. But I'll jump it for now, just so I can test it :)

[nickhjort]

Yup that's where I found it. Thanks :)

[nickhjort]

PK198105 or CTScott, or anybody for that matter :)
PK198105 mentioned if you didn't have blue wires under the sterring wheel, then you'd have to find the AD4 junction box. Well my car is ripped apart (see picture) and I need help finding the right box and which wires to splice into for this cruise control. I set my switches up just like CTScott has them and now I just need to splice wires. Please help me when you guys get a chance. I wanna drive my car by, at least, tomorrow...By the way all these pics are of the top left section of where my dash used to be :) Is there where I should be looking for this "AD4 junction box"?
Also where might I splice the LED wires so that the LED comes on when the cruise is on? Any ideas?

[CTScott]

Nice pictures! How hard was it to remove the top?

I am out right now for about two more hours. As soon as I am home, I'll look closer and get back to you.

[nickhjort]

Thank you so much, I have about 3 hours before the sun light is bye bye. It wasn't too hard to remove the top. Couple scratches and bruises on my hands, but now that I know how, of course, I can do it a lot quicker next time.

[nickhjort]

I'm not the best at reading wiring diagrams, but from what I can see my car doesn't even have this "ad4 plug" see picture...



And I can't find a plug hanging down that would plug into the Clutch Switch for Cruise Control. I can see where the switch mounts to the Clutch Pedal Mount...but no plug. Please help me :(

[nickhjort]

Also if this is the case, does that mean my ECU doesn't even have the Cruise control programmed into it, so I can't tap a wire right from the ECU itself? I hope I can do this...seeing as I already drilled my holes and put switches :) (kicks self for not getting priorities straightened out before starting project...1. Check to see if this will work...2. Then cut $hit up HAHAHA!! Not the other way around...)

[Sir A.Y. Atoyot]

Originally Posted by PK198105

ok it looks like its the grey connector right under the yellow one, although im not 100% sure.

I think you're right, especially since the factory diagram has a note saying "gray" on the picture of the AD4 plug.

[CTScott]

It is definitely the grey next to the yellow. Pin 1 is orange, 10 is yellow, and 5 in pink, and I see those clearly.

In the pics I don't see the right angle to tell if the Pin 6 blue wire (CCS) is there. It should go 5-pink, 6-blue, and 7-brown.

[CTScott]

As for the clutch switch wiring. At the ECM it is pin 56 of Connector C20. From there is connects through pin 14 of CA1 (the right rear connector in the under hood fuse box). It is a blue wire - shown below (For AT, two wires come into the one pin). For your test, you can jumper it to the white wire, two pins to the right of it.


Clutch Switch Wire.jpg

[nickhjort]

Originally Posted by CTScott

As for the clutch switch wiring. At the ECM it is pin 56 of Connector C20. From there is connects through pin 14 of CA1 (the right rear connector in the under hood fuse box). It is a blue wire - shown below (For AT, two wires come into the one pin). For your test, you can jumper it to the white wire, two pins to the right of it.

I know you said this is the wire for the clutch switch, and this is really more than a question than me trying to correct you, but this diagram makes it look like the black wire in box a25 is the clutch switch wire, and it looks like it's outside of that fuse box in the engine bay? Or is this some other totally different thing and I'm just getting myself more confused? Again I have a very vague understanding of these schematics and I'm just trying to learn some more about them

[CTScott]

Originally Posted by nickhjort

I know you said this is the wire for the clutch switch, and this is really more than a question than me trying to correct you, but this diagram makes it look like the black wire in box a25 is the clutch switch wire, and it looks like it's outside of that fuse box in the engine bay? Or is this some other totally different thing and I'm just getting myself more confused? Again I have a very vague understanding of these schematics and I'm just trying to learn some more about them

The black wire is just a +12V source that flows through the clutch switch to the ECM input. The A25 connector is a nighmare to get at, so the white wire, I said to jump the blue to, is a much easier to get at alternative to the black wire in A25.

[nickhjort]

How you guys can read that diagram...I don't know, but thank god you can :) Thanks so much! You guys are awesome! I lost the last of my light though, so tomorrow I'm gunna finish this up and we'll see how it works. I'll take some more pictures as I splice and dice, just to kinda help with someone's DIY (I'm not gunna write one up...not a very good public speaker).

[nickhjort]

Well I just checked and I have no blue wire in slot 6...I have a blue wire in slot 15 though. That's on the top part, and on the bottom, I can't see under it right now to look for a wire, but when I unplug it and look in at the metal pins, there isn't one where that blue wire in slot 15 should be and there isn't one in slot 6. I hope I'm explaining this ok for now, until I can take more pics tomorrow. Is it possible there is a wire going into the harness, but there's no metal pin for the plug part? I dunno I'll check tomorrow when I don't have to use a flashlight :)

[CTScott]

Originally Posted by nickhjort

Well I just checked and I have no blue wire in slot 6...I have a blue wire in slot 15 though. That's on the top part, and on the bottom, I can't see under it right now to look for a wire, but when I unplug it and look in at the metal pins, there isn't one where that blue wire in slot 15 should be and there isn't one in slot 6. I hope I'm explaining this ok for now, until I can take more pics tomorrow. Is it possible there is a wire going into the harness, but there's no metal pin for the plug part? I dunno I'll check tomorrow when I don't have to use a flashlight :)

The blue one in 15 is a CAN bus wire (CANH to the combination meter). So, it looks like your next stop is the ECM Connector A21, Pin 40. I would think that the absence of a wire in AD4-6 means that A21-40 will be empty as well.

[nickhjort]

So that means I can't do this huh?

[CTScott]

Originally Posted by nickhjort

So that means I can't do this huh?

I'm starting to understand why the Rostra CC kit for 06-08's consists of more than a couple of switches and resistors...

[nickhjort]

I'm guessing there's a pin in the ECM at slot 40 for the cruise, but no wire on the plastic connector part. I wonder how hard it would be to just insert a wire on the connector. I'll have to see how the wires are in there and if you can get one of those little metal pins and attatch a wire to it.