No separate fuse for the cruise control. It is computer (PCM) controlled. Any 'ck eng' light or fault codes?
You can try the key-dance here:
http://www.youtube.com/watch?v=9kJ3uGjYnbI
Write any codes down. Not everything will set a fault code and the PCM may have to be interrogated by a scan tool. Watch the tool display for switch on/off states (off/on, set, resume, cancel, etc). The brake pedal switch, if out-of adjustment or defective can also cause the cruise not to operate. This should also be shown on the scan tool as a PCM input. Some tool displays will also give a 'reason for last cruise default' which may point to the problem.
Many auto parts stores will let you use a scan tool across the counter for out in the parking lot if you leave a 'hostage' ID card with them.
This thread may get moved to the Ram truck or the Technical support section for more visibility.
You can try the key-dance here:
http://www.youtube.com/watch?v=9kJ3uGjYnbI
Write any codes down. Not everything will set a fault code and the PCM may have to be interrogated by a scan tool. Watch the tool display for switch on/off states (off/on, set, resume, cancel, etc). The brake pedal switch, if out-of adjustment or defective can also cause the cruise not to operate. This should also be shown on the scan tool as a PCM input. Some tool displays will also give a 'reason for last cruise default' which may point to the problem.
Many auto parts stores will let you use a scan tool across the counter for out in the parking lot if you leave a 'hostage' ID card with them.
This thread may get moved to the Ram truck or the Technical support section for more visibility.
