Dead Gauges
We have a 2002 Coachmen Cross Country Elite with 54000 miles. Never had any electrical trouble with the coach on 5000 mile trip this summer. I start it every couple of weeks just to keep the "juices...
Forum Discussion
Coachmen02 wrote:
Freightliner sent me the SB 54-12 and I have started checking out the possibilities. So far the fuse for the dash gauges is a 10 amp fuse and there is power through the fuse. I am continually checking the grounds. But the wires under the dash! Holy Cow!
I am going to check the connections at the VDC next. I have to find out if there is a fuse for the VDC and where it is located. (Any suggestions). So far it seems the the VDC may be the problem. At this point we are getting it ready to put it in the garage for the winter.
I understand the "Holy Cow" feeling about the wires under the dash.
Your chassis should be similar to mine, and I just checked the two freightliner black plastic boxes with fuses and relays and did not see anything that might affect the message center except that 10 amp fuse for instruments. I saw no relay labels that make me believe there is a dedicated relay for the message center.
If you don't mind reading a wiring diagram, you could ask the Freightliner Help Desk to send you the wiring diagram for your coach. They do maintain the diagrams for each chassis they make. It might be worth asking them where the message center obtains the power (fuse maybe).
I looked at my chassis wiring diagram trying to diagnose your problem, but not sure if I'm any help here. I think there is a connector "to guages" with positions a and b being the data connections, position c is not used, position e is the ground, and therefore I believe that position D is the power feed.
The position D feed to the "to guages" connector is fed from pin 9 on the "instrument Panel/Cab Harness Interface". I looked through all the other pages of wiring diagrams and could not find a match for Instrument panel/Cab Harness Interface.
Now where to find these connectors is another "holy cow" moment.
There's a thread on IRV 2 Freightliner forum has has some info on other owners that have lost guages. You might want to look at this one:
Thread on lost guages Freightliner System III wiring
Good luck and keep us posted.
Fred
