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

[Yarisduder]

I have that blue wire but the one connecting that blue wire to D3 is absent. So you should take off the three screws holding the bottom of the column cover on to check. It doesn't even take 5 minutes.

[CB900F2]

Hi Yarisduder.. Well... you are right!... pulled off the cover and the CC wires are not there!.. GOD DAM!!!..

Originally Posted by Yarisduder

I have that blue wire but the one connecting that blue wire to D3 is absent. So you should take off the three screws holding the bottom of the column cover on to check. It doesn't even take 5 minutes.

[Bluffnaked]

Before I make any modifications, can anyone confirm if I in fact have the CC wires. I've been looking at my wires for a while and the DYI guide, and it's hard for me to tell if I do or don't.

[CTScott]

Originally Posted by Bluffnaked

Before I make any modifications, can anyone confirm if I in fact have the CC wires. I've been looking at my wires for a while and the DYI guide, and it's hard for me to tell if I do or don't.

You do not. See the white connector with the one black wire - That would have a brown and blue as well if you did.

[Bluffnaked]

Thank you CT, I didn't even notice that one until you pointed it out lol.


And success, installed and working like a charm. Thx to CT for the indication box, and the PDF. Although I think the DIY PDF reads wrong about the location of A21.


"4. Run the positive wire (red wire on last page pictures) to pin 40 of ECM connector A21. This connector is the one on the right plugged into the ECM (left side of the engine bay if you are standing in front of the car). You must first cut the ziptie, push the clips (I used a small screwdriver) and undo the hooks to remove the cover as shown by nickhjort in the following picture. Then you push the little rubber that is in the pin40 out with a pin and get your wire through. I suggest that you skin the wire on 1-2 cm, twist it and then cut it as close as possible to the connector after you pulled
it from the other side."

On my car A21 is the right side of the ecm when I'm standing in front of the car, it's the smaller one of the two. When you read the above paragraph from the DYI PDF, it starts to say right side, then goes to say "left side of engine bay if you are standing in front of the car". This threw me off, so I wrestled with the other connection which is a lot harder to get off for a while, till I realized I had the wrong one. LOL anyway just wanted to point that out. And of course I do appreciate the DYI, because I was close to having the dealer install it for me for the tune of $500 big ones.