The cruise control stopped working on my 2003 Acura tl.

EASY ACURA HONDA ABS VSA BRAKE FCW SH AWD TRACTION CHECK ENGINE LIGHTS FIX

Check the actuator under the hood. Has a cable that goes to the throttle. Is it plugged in? I believe there is a vacuum line to it also, is it good?

check fuses at drivers foot area and clean pickups on front half shaft driveshaft nearest to wheel, and wipe off the pickup and make sure it is plugged in.

The switch is not making contact after depress , change out the switch , find a auto tech you can trust
good luck

it is probably the blower motor resistor, had the same problem on 2003 CL Type s, the fans for the A/C and heat just stopped working was the symptom . The part is only about 70 dollars.

check under hood for other fuses or relays

This is a problem you will to take to a shop, If you are mechanically inclined I can help you, but if not I would not mess with it, it could be the button or it could be the controller and could even just be a fuse, check the fuse and if you don't find the fuse blown then let me know if you have a volt meter and what to test this yourself. You are going to be working around the air bag too and if you probe the wrong wire while testing you could break your arm or leg by deploying the air bag by accident. Or your neck.

before replacing anything, check the cruise control fuse under the dash and under the hood the fuse box under the hood should be close to the battery

Sometimes the plastic cog on the side of the throttle body (TB) breaks. This cog is "pulled" by the cruise control accuator's cable.
To check, simply look on the side of the TB and check to see of the cable end has broken free. (The mechanisim is much like the brake cable on a bike)

it's a wire from under the dash it usually burns out after awhile,i had the same problem email me at [email protected] for more info on the wire i forgot the name for it.