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

[CTScott]

Originally Posted by sheraz2000

well, when i opened up the D3 connector on my belta, i got these wires. Tell me what to do from here forward. SORRY about the blurry pic, was taken from my mobile cam. But the wire colors r pink, orange, grey and black. there is no blue and brown cable. How to check if my car has CC in ECM.

Those three wires are for the steering wheel audio controls. If a Yaris is wired for them, then it definitely does not have Cruise Control. Based on the wiring diagrams, areas that have steering wheel radio controls do not have cruise control and areas that have cruise control do not have steering wheel radio controls.