Adding cruise control ?

Wait so I am confused. Looking at the pics it looks like the top right pin (out of 4) goes to the Airbag ground? If I pull that harness from my truck and plug the new harness into the cruise control stalk doesn't that mean my airbag has no ground so wont be able to go off?

 

Wait I misread. So i just back the ground for the airbag out of the current connector and put it in the new. Never done that. Sounds like an adventure for sure. Its only an airbag what could possibly go wrong

 

This is going to be difficult to word on a message board lol. So look at the first picture i posted, its a 4pin connector with only one wire going into one of the pins (so its functionally a 1pin connector with 3 blanks) all it is without cruise is just a ground for the airbag. The cruise control has the exact same 4pin connector but slots 3,4 have wires in them (for the signal from the stalk) it however doesnt have the ground wire. So if you remove the 4pin connector and take the ground wire out from the connector entirely (just a wire left now) you can take that wire and feed it into the new 4pin connector into postion 1 and everything is good to go from there

 

exatly! I didnt think this was possible and i had a chat with my dad whos an electrical engineer and he said its super simple, and he wasnt wrong lol

 

I'm going to open my steering wheel again and try it but I'm pretty sure when I first tried it I did what your saying nd still no cruise. I check to see if I had the necessary wires under the steering wheel and I don't have them so I think I need to run wires from wheel to ecu under glove box. My question to newfiebruh is did you have the wires under the steering wheel. Because that means you were presided unlike me

 

I didn't look under the wheel, all i seen was the 4pin. I read 99% of the tacomas are prewired one way or another, what way were you wiring it up?

 

Exactly as you have at least as I can remember. I've had this control with the wire pictured thruout this post for years frustrated that I couldn't get it to work especially since the 07's were mostly supposed to be presided. After mine didn't work I've read a million posts and have come to the conclusion that I need to wire the ecu. I've been stuck since then. Thanks for your replay

 

I've been under my dash looking for this elusive white clutch switch "plug" 10 times or more by now for the past 5 days and I still cannot locate it anywhere. So could it possibly be that there were no clutch switch "plugs" provided in a "manual" 2010 Tacoma?? I can't imagine that. Some members here have indicated that the clutch plug exists in their "automatic" Tacomas. So how could it not be available in my manual truck? The wire should be somewhere near the top where the clutch hits the switch when released.

I live in the Trenton NJ area, so Is there anyone close by in the Central NJ or Eastern PA area who knows where to locate the clutch plug? I'll come to you. If not, I guess I can bring it to a dealer and have them search for it.

Thanks in advance!

 

Look farther up in corner above/behind the top of carpet towards where firewall meets cab sidewall.....mine was underneath the floor liner vinyl stuff with insulation on backside above where carpet stops, above & left of clutch pedal..................

 

Hi T@co_Pr3runn3r,

Thanks for writing. I looked everywhere including where you suggested just now, and it is not there. I also pressed down on the rug in that area and everywhere else and couldn't feel any wires or a bulge of a plug underneath .. no matter where I looked. I've come to the conclusion that my truck (even though it's a manual) didn't come with a clutch plug for use with a cruise control. I did some research on ToyotaNation.com and some members there said that the clutch plug wasn't included in the Tacoma starting with 2009. My 2010 was made in California.

So I decided to order a harness kit from a guy on eBay here. The harness has female spade connectors that goes to the ECU and to the lead at the power junction box. It cost me $40. I should get it later this week.

He provided images of the harness kit and instructions which I cropped and re-sized below:

 

That must be it then....mine is 2008 SR5 RC...it wasn't wired for fogs or much anything else but did have the cc plug hidden up there.

 

Gutsy, I've done several CC installs on the 5 speed and what I remember was about that time circa 2009 2010 was the connector you are having a tough time locating could occasionally be found wrapped in electrical tape as part of a larger bundle of wires nearby. The leads of the CC connector for the clutch cancel at this location are actually relatively short, being perhaps only about 4" or so long so you should be able to get to the upper clutch adjust bolt that the switch will replace and form a short arc outward thinking they have been hidden.

Indeed, we find many pre-2009 trucks that were actually prewired to one extent or another but cruise control available only as an expensive option. My gut feeling is ToMoCo caught on to this in the same way similar to when owner's of certain FJ Cruisers discovered that ATRAC could simply be added with a $50 switch instead of being gouged a $4,000 premium. So I would not be the least bit surprised to find other trucks where the CC connector has been hidden.

 

Got my first switch in with 2 wire harness. Got the Airbag ground pin out of the factory harness and into the cruise control harness (top left), put everything back together and it did not work. Pulled it apart again checked connections. Nothing. Ordered another switch (this time a Toyota part rather than cheap Amazon part) and a cruise control/airbag ground harness as I destroyed the ground trying to get it out of the cheap POS I bought first. Hopefully this works. If not I am going to assume I am not wired for cruise control outside the steering wheel. The harness that came is 2 wire. I would assume by this the cruise control harness is not a 12v and ground but rather modulates voltage and returns it? Does anyone know what kind of readings I should see from those two bottom pins so I can test mine?

 

What you are likely to find is virtually nothing for pre-wiring in your truck but read on. You are going to have to create most from scratch or buy one of the kits. However, this should not be very much work at all as the good news for you is you likely already have the wire from the ECU to the dash light for the green "Cruise" light on the instrument cluster that earlier trucks did not have. That will save you a bunch of work. Even better news is yours is an automatic and you will not have to mess with installing a clutch cancel switch so even more work saved.

 

Weird, after I installed mine just as you did the cruise light turned on right away after I hit the on/off switch

 

OK .. I ordered and received the kit in the mail that I mentioned above (post 70). In short, it was just too complicated for me. I wasn't sure which of the 5 sets of wires included in the kit go to (see pic below). What I did want to do is ensure that I did not have a clutch plug already under my dash. So I decided to see if the wires were already connected to the harness plugs behind my steering wheel and on black plug (2nd from the bottom) on the ECM. So I did the following ...

1. Downloaded the cruise wiring kit instructions (see attached form 5188f)
(I already installed the cruise switch and proper wiring and ground in the steering wheel … so on to step 2)

2. Located the BLACK connector (S8) behind the steering wheel and wires were ALREADY connected in pin 1 and 2.

3. Removed the glove compartment cover and found the ECM and searched for a black connector E22 (per the diagram below, the ECM is on the right side - E22 is supposed to be 2nd from the bottom) to determine if wires are already connected to Pin 9 and Pin 14. The problem .. there is NO black connector located in the 2nd slot from the bottom of the ECM. The 2nd from the bottom connector is white. There is only 1 black connector on the ECM and it is the 3rd form the bottom on my 2010 Tacoma (see pic of my ECM below). I don't know if I am looking at the correct connector or not.

At this point, I don't know what to do. Thanks in advance for any help anyone can provide.

 

@caribe makaira is the local Tacoma electrical guy. Maybe he can point you in the right direction.

Edit: I see 1 problem. You're using the '13 instructions. Your profile lists a '10.

Farther down, there are instructions for '09-'12

 

Hey Muddinfun .. Geez!!! Thanks for pointing that out!

Well that explains it doesn't it. Ignore what I said above then (post 76).

So the 2nd plug from the bottom for my 4 cyl 2010 Taco is white. I'm attaching the correct images (below) for the 09-12 Tacoma.

Now I have to check to see if there is a wire plugged into pin 21 for the clutch switch.

 

OK .. so I removed the glove compartment door again removed the 2nd plug from the bottom of the ECM on my 2010 4cyl manual Taco, and it DOES NOT resemble the plug in the instructions. Do I have a 2010 Tacoma that no one else has? How can this be?

See the picture of my plug - VS - the plug I cropped off the instructions. If you compare just the bottom left pin openings on my plug … I have 5 and the one in the instructions has just 3 (orange dots). So either I am looking at the wrong plug or this is an anomaly.