The cruise control on My 93 ZJ has never worked. I started checking, and when I push the (on button) I do hear a relay (click) so i'm thinking the switch is good at the steering wheel. I have also checked the vacume at the servo, it's good? Replaced the cruise servo from the local junk yard and still no cruise? The cruise light on dash nerver comes on? If their is a light? Any ideas??? Is their a switch at the brake pedal that could keep cruise from working? Thanks for any info.

 

It very well could be the stop light switch, it has about seven wires going to it, so it does do more than control the brake lights.

 

I have not checked the brake switch, It did look like it should control more than just the brakes. Ill check to see if there any info. in the haynes manual. This problem is KMB!