Pulling up an old thread because it best describes the problem i am currently having.
Cruise worked fine for a year then one trip it stopped working, it will not engage. I've checked cleaned and redone all the grounds, swapped out brake relay with a new one, switched controllers, got the with the engage light( still need to wire in the relay for it). I've opened the control box and tested that all the inputs are correct.
doing the ground test and mentioned. tested with positive on purple wire side of the relay and ground on used ground got 12.4v with brakes engaged. brakes disengaged, positive on battery and ground on purple wire side i get 12.6v
red; 12+v when switched on
purple; grounded then 12+v when brakes pulled
black; ground
yellow;12+v switched w/ resume
brown; 12+v power
gray; vvs 5v pulse
dark green; 12+v switched w/ set
blue; not used
light green; clutch switch
orange; not used
any help would be great!! Im on day 5 of trying to get this figured out.