have a 2002 3500 4x4 h.o.cummins and the intermediate wiper and key in ignition buzzer quit working at the same time.are they tied in together and what is it i need to fix it happened while installing trailer brakes could i have bump something

 

You should check fuses, inside the truck and outside, over the left fenderwell.<br><br><br>Chris

 

checked all fuses and all off them are good any suggestions?

 

Check that black box under the dash above the brake pedal sounds like you might have knocked a plug loose. that box controls lot of things

 

My guess is your Central Timer Module, or CTM is hosed. Strange as it may seem, the intermittent wipers, and the &quot;ding!,ding! ding!....&quot; used for alert alarms are generated by the CTM. It's located under the driver side end of the instrument panel, inboard of the instrument panel steering column opening. Does it work for seatbelts and lights on? If not, I'd really zero in on the CTM.

Tom Hybiske