If the cruise control will not engage, there might be a problem with the Electronic Fuel Injector or the MAP Sensor. There might also be a problem with the Oxygen Sensor. Some autos have more than one oxygen sensor.
un hook the cruise control
Check the vacuum hose that feeds into the cruise module in the engine.
if its the same as mine, the on and off are on the left, and the = + - are on the right. they are for your cruise control. on turns it on, =sets the speed, and + makes the cruise control engage.
Read the manual, but I believe it says when the cruise light blinks there is an error with the cruise control and should be checked. I have had mine blink before and then the next time I used it, it was fine.
I found a great mechanic in the area and within 2 hrs and 70.00 dollars later he found there is a screw in switch up and behind the brake pedal with a "plunger type of mechanism" which over time the cruise control cut-off switch managed to "unscrew itself" which caused the cruise control not to engage. He has my business.
check vaccuum lines on cruise control and other things that use vac
Did you just turn it on from the dash or turn it on and then attempt to engage it with the wiper stick?
Because you have to at least be at 25 mph or 30 km/h
Check to see if the center brake light is working. Alot of cars have the cruise control on a fuse circuit with the center brake light. A blown fuse may be the problem. Check the fuse panel under the hood or dash.
There are 2 fuse boxes in Rav4s (that's how it is in my 2002 Rav4). One is under the hood on the right hand side, the other is located behind the compartment where your left knee touches when you drive. The one that controls the cruise controlis probably located behind the compartment where your left knee touches when you drive. Onur Diker.
Common issue...if the brake light swith is not working; the cruise control will not engage and your brake lights will not go on. replacing switch is easy and inexpensive...its located in the upper part of the brake pedal.