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

[CTScott]

Originally Posted by bonox

Hi All

I tried this today on my December 2006 YR. Is there a way to tell if you've made a connection to pin40 on A21? Is there a test resistance to ground or another pin for example?

Mine also does not have the blue wire populated in the fuse box for the clutch switch either. Does this mean it's a no go? There is a pin at the bottom (just not a wire coming out of the plug), which I tried grounding, but couldn't get CC to work.

Thoughts any of you gurus? :)

For the pin 40 test, measure the voltage on the wire with the ignition switch in the on position. You should see 12 V on that pin.

The missing blue clutch switch wire is potentially a bad sign. Did you verify that there was not a connector taped to the harness, just above the clutch pedal?