cruse control dosn't work

From : chad

Q: 2004 cummins 6 speed the other day i installed a electric brake controler and the next day the cruse would turn on but not engague. so i unpluged the controler and still no cruse.so i checked the brake switch and lights and they worked fine and so did the clutch switch for the starter so i just fumbled around with wires and connectors and the next day cruse worked then today i moved the controler and now no cruse i did the same as before but still wont work help .

Replies:

From : tom lawrence

input and if it is an electric stepper motor make sure it is still connected. you left out the option of there being no motor at all vacuum electrical or otherwise.... because with a manual tranny theres nothing mechanical that needs to be manipulated no tv cable like on an automatic. all cruise control functions are handled directly by the ecm it ignores the apps input and substitutes its own fueling levels based on desired vs. observed speed so the only thing that he could have mucked up is the brake switch sense circuit... the ecm thinks the brake is depressed so it wont engage cc. .

From : chad

fuses are good and the dash light that saya cruse comes on so it turns on you did not mention the obvious while messing with electrical compoenents. fuses 2004 cummins 6 speed the other day i installed a electric brake controler and the next day the cruse would turn on but not engague. so i unpluged the controler and still no cruse.so i checked the brake switch and lights and they worked fine and so did the clutch switch for the starter so i just fumbled around with wires and connectors and the next day cruse worked then today i moved the controler and now no cruse i did the same as before but still wont work help .

From : tbone

your best bet would be to look at the mechanical side. not having a new diesel i dont know how it operates on your vehicle but if it is a vacuum controlled motor check to make sure it is still getting a vacuum on its input and if it is an electric stepper motor make sure it is still connected. -- if at first you dont succeed youre not cut out for skydiving fuses are good and the dash light that saya cruse comes on so it turns on you did not mention the obvious while messing with electrical compoenents. fuses 2004 cummins 6 speed the other day i installed a electric brake controler and the next day the cruse would turn on but not engague. so i unpluged the controler and still no cruse.so i checked the brake switch and lights and they worked fine and so did the clutch switch for the starter so i just fumbled around with wires and connectors and the next day cruse worked then today i moved the controler and now no cruse i did the same as before but still wont work help .

From : geekboy

you did not mention the obvious while messing with electrical compoenents. fuses 2004 cummins 6 speed the other day i installed a electric brake controler and the next day the cruse would turn on but not engague. so i unpluged the controler and still no cruse.so i checked the brake switch and lights and they worked fine and so did the clutch switch for the starter so i just fumbled around with wires and connectors and the next day cruse worked then today i moved the controler and now no cruse i did the same as before but still wont work help .