DIY Cruise Control on 07-08 Yaris (step by step)

[Soylentglass]

I posted yesterday the results of my install on my 09 manual sedan and at first I ran into the same problem with the repair terminal not fitting. I ripped the waterproofing sleeve trying to jam it in with fine needle nose pliers.

My post is at the end of http://www.yarisworld.com/forums/sho...=16188&page=30

On connector A21 there is a locking mechanism that you must push to one side to allow the terminal to slide in place and yes it would only go in one way, which happened to be the 4th position I tried. You then push back the white plastic slide piece and it will lock the terminal in place.

[flutie98]

Originally Posted by Soylentglass

I posted yesterday the results of my install on my 09 manual sedan and at first I ran into the same problem with the repair terminal not fitting. I ripped the waterproofing sleeve trying to jam it in with fine needle nose pliers.

My post is at the end of http://www.yarisworld.com/forums/sho...=16188&page=30

On connector A21 there is a locking mechanism that you must push to one side to allow the terminal to slide in place and yes it would only go in one way, which happened to be the 4th position I tried. You then push back the white plastic slide piece and it will lock the terminal in place.

hmm any pics as to where that locking slider is?

[CTScott]

Originally Posted by flutie98

hmm any pics as to where that locking slider is?

It's the white thing at one end of the connector:

Lock latched:
Lock Down.jpg

Lock released:
Lock Up.jpg

Pop it with a small screwdriver from the side:
Pop Lock.jpg

[flutie98]

well darn, I feel like an idiot now. Thanks CTScott

[CTScott]

Originally Posted by flutie98

well darn, I feel like an idiot now. Thanks CTScott

Don't - The first time I tried to pop a pin I did everything short of chewing on the connector. I had no clue that every connector has a locking mechanism until I read it in the service manual.

[flutie98]

Originally Posted by CTScott

Don't - The first time I tried to pop a pin I did everything short of chewing on the connector. I had no clue that every connector has a locking mechanism until I read it in the service manual.

Just out of curiosity where in the service manual does it depict this locking mechanism for A21?

EDIT: Just seated the terminal correctly, thanks again!

[Soylentglass]

Originally Posted by flutie98

Just out of curiosity where in the service manual does it depict this locking mechanism for A21?

EDIT: Just seated the terminal correctly, thanks again!

Just in case you are still curious, I found examples of locking mechanisms in the wiring diagram manual, page 14 through 16. Page 14 on the bottom left has some nice figures of a terminal with the "terminal retainer" both in the lock position and the "temporary" lock position, which is where I think a small piece of the terminal contacts the back of the retainer and holds it in place, but not as firmly as when you put the retainer in the lock position. There doesn't seem to be an example of a connector just like A21, but in the last figure on page 16 the connector on the left seems to have a somewhat similar retainer. Also, the third figure down on page 15 shows a terminal inserted into a connector with the waterproofing sleeve on it.

[Vince87]

I just received my insulated wire from trdsparks... I will update the DIY this week end so that nobody breaks his A21 connector while trying to fit it... Thanks again to CTScott for figuring this one out (what would we do without you?) !

[Taboolie]

From reading the posts in this thread, it appears as though this does indeed work however I'm curious why the Rostra kit has is so complex in comparison?

I mean really, if it was just as easy as running one wire through the firewall why would they bother with all of the other ones?

Is it that the Rostra one supports many models & years and this DIY trick is only for the 07 and 08?

Also, I'm not sure if anyone answered this already, but would there be any reason I couldn't purchase an OEM cruise stalk and use the wires from this with this method?

If it's safe and works then I'd rather spend $25 on the OEM stalk and a couple of bucks on some wire then $250-500 for an aftermarket kit.

Thanks

[CTScott]

Originally Posted by Taboolie

From reading the posts in this thread, it appears as though this does indeed work however I'm curious why the Rostra kit has is so complex in comparison?

I mean really, if it was just as easy as running one wire through the firewall why would they bother with all of the other ones?

Is it that the Rostra one supports many models & years and this DIY trick is only for the 07 and 08?

Also, I'm not sure if anyone answered this already, but would there be any reason I couldn't purchase an OEM cruise stalk and use the wires from this with this method?

If it's safe and works then I'd rather spend $25 on the OEM stalk and a couple of bucks on some wire then $250-500 for an aftermarket kit.

Thanks

Rostra makes kits for many vehicles. When they designed the Yaris one, they probably just used their standard method. Who'd have thunk that Toyota would build in the functionality, but just not put the stalk there to use it.