deputylynch

I appreciate the help but I really don't want to cut any panels in half and want it to still look OEM. The video shows how to replace the gear on the rear power cord reel when you get it out which I can figure that out. My question is is how to get the water reel out without destroying the motorhome.

Has anybody ever made a video or have detailed instructions on what's involved in getting the reel out to replace that gear?

Aggpop I was just about to say that after going through the whole post! Did you find the female that matches it? Was yours buried on the top of the steering column in the dash behind the instrument panel? I still have a problem though that I'm not getting any power to pin 3 Don't know if it's a blown fuse or what?

How many hours of my life could have been saved with a good circuit tracer! Once I had one in hand almost everything was figured out within minutes! Attached is a picture of what I have, a miniature four pin with only four wires going to it. It was found on top of the steering wheel in the dashboard behind the instrument panel after ripping everything apart! It checks out with the attached schematic other than I still don't have any voltage to pin 3 for the brake circuit. So I'm still going to need some help with that? When I go to the relay I have 12 volt at pole 85 which doesn't seem right according to schematic and then 30 and 86 are in a circuit together but no 12 volt power going to them as the schematic shows. Pole 87 is going up to the pin number 3 as it should but it's not getting any power. The way I read the schematic pole 85 should go to ground from the brake pedal and pole 30 & 86 should have the 12 volt to them that then would throw over to pull 87 up to pin 3? What am I missing here? Shouldn't pole 86 always go to ground and pole 30 have 12 volts then triggered over to 87 when activated by 85?

I haven't found a wire that goes all the way back correctly. The one I did find runs from that Dash/GPS Interface Plug back to pin 7 which is the reverse circuit, not pin two which would be for braking. Looking back, it would have been a lot simpler to just run a wire back there and wire up a brake controller from scratch! Now it's a challenge that I'm determined to figure out if in fact this unit was pre-wired or not. When I get a new signal tracer later today I'm starting back at the blue wire {pin 2} and seeing where it goes.

Well you're right, that plug is not for the brake controller! After looking at the schematics and tracing it down, it is for a Dash and GPS Interface. It sure does look like the connector though that everybody else has shown! I have a blue wire into the trailer connector but I've not been able to trace it to see where it goes and I'm waiting for a new signal tracer to come. On an unrelated note, since I have the dash all torn apart, does anybody know what these wires and red bulb, buried up in there, are for?

Well now I have even more questions. Don't know anything about the battery disconnect in the back since I just bought this coach. And the only six pin connector I can find is as pictured in other post but it's not making sense as far as the brake wire. On my connector the wires that I can't read the numbers on are as follow: 1 is 106D, 2 is 108A ACC, 3 is Blank, 4 is 136G IGN A, 5 is 142D USS, 6 is the empty slot. This is under the dash to the left of the steering column

Did you have constant power at pin 2 or did it shut off when you hit the brake as what I read described. Mine has constant power a pin 2 no matter what I do at the relay. And now after reading your post, where did you do the swap out which relay? The one I'm working on is in the outside panel.

That's evidently where F7-3 (marked CHG) is and it was the only fuse in this whole motorhome that I found that was blown!! That's the good, but bad news, since when replaced I now have 12v to pin 4 at the back as it should but it didn't change anything at the front! I still don't have any brake control or 12 v constant up there?? They are all white and I can't make out any printing on them but checked them with a VOM and pin 3 to the back found at pin 7 along with the reverse power! I guess you're you working with an 06, which is a year newer than mine. Did everything else check out for you including having to do the relay wire swap? Did you have a connection to pin 2 at the back, not 7 like mine?

There are no wiring diagrams in the rear of my manual nor the one online which is identical so the info on how to find some on here has been somewhat of a help! Well after spending hours on this, and my circuit tracer breaking on me to really make things tough, this is what i found: Pinned out to the rear trailer connection is 1-Ground, 2-dead, 3- Taillights, 4-dead, 5-L. Turn/Brake, 6-R. Turn/Brake, 7-Reverse & goes to Pin 3 at front controller connection but doesn't have the 12v from the Reverse so maybe it has a diode somewhere? All standard trailer connections and as in the Owner's Manual. The Controller Connector @ the front is 1-Ground, 2-switched 12v (not the brake circuit), 3- goes back to 7 along with the Reverse 12v but again it shows only as a direct connection without the 12v from the reverse??, 4-Ignition Keyed 12v, 5- 12v also keyed 6-no wire. The schematics show that 5 should have constant power from a relay that also should power an air dryer but I can't find that anywhere; it mentions it should come from Fuse F7-3 in the battery box or rear electric panel and should also power pin 2 at the trailer connection which is dead. The schematic seems wrong on pg 2 in that pin 2 & 3 are reversed?? I've checked every fuse and they are all good and don't have any empty ones that could be missing, but again I can't find the F7-3?? So where I stand now is why pin 2 at the front connection isn't activated or deactivated by the brake, why I don't have a constant 12v to pin 5 or pin 2 in the rear, and how do I get the wire signal separated from pin 7 in the rear from pin 2 in the front to pin 4 in the rear??

I have the Smart Wheel as pictured in my manual and nowhere is there a switch that I can find to switch from anything but the air horn. The only horn activation is on the horn bar shown underneath with the horn on it. Hitting the main body of the steering wheel does nothing. I've found many problems in the owner's manual such as in/out switch for my exhaust fans and the drainage valve for the rear air tank.

Thanks it was next to trailer hitch not in the engine compartment as described in the owner's manual! I've found many other errors in the owner's manual such as an in/out switch on my exhaust fans, and working the "City Horn" from the Smart Wheel.

I found the problem was that the wire was out of the connector going to the plug into the unit. Part of the problem was that the light is wired reverse of any socket I've ever seen being that the center post is negative and the outer casing is positive so that cause some confusion.

The first picture is the one under the dash that is the six-pin connector with 5 wires everybody's talking about. The second picture is the one at the relay outside the coach to swap over for the brake switch problem. You also mention follow the prints but that's the problem, I have no prints or wiring diagrams. Is there any source for wiring diagrams on these coaches?

Tom Cherry I did follow your earlier post plus many others on different forums and my plug wiring is evidently different? I'm 95% sure I am at the right plug and attached a picture of mine. It was buried up underneath the IP to the left of the steering column. Again, on my pin number 3 it seems to go back to the pin 7 at the trailer connector and is not completely isolated in that it does provide a weak ground when checking it with a VOM. The resistance is very high but it still will provide a ground according to the VOM. No matter what, I cannot find one of the wires to act as the brake switch either on or off when hitting the brake pedal since all of the positive wires seem to be on with the ignition on and off with the ignition off? I tried making the swap at the relay outside the coach as suggested and it made no difference. Lastly, none of the wires are hot all of the time. Is there any source out there to find the wiring diagram on these coaches?

Can anybody tell me what the fuse is for the retractable engine compartment light since mine is dead and I can't trace it out on an 05 Diplomat. Better yet is there a source of wiring diagrams for these coaches?

Can somebody please help me find where my rear air drain would be on a 05 Diplomat since I can't find it after an extensive search in the engine compartment. I'm finding reading the owners manual is just getting me in trouble since it's not a great help and just sends me searching for things! Also while in the back engine area I found an extendable light that is dead and I can't trace the circuit up to find out where the fuse might be. A greater help would be if somebody could tell me where I might be able to find wiring diagrams for the coach.

Well I'm in a complete loss after reading all of this post and many others in other forums! I have an '05 Diplomat and after a great deal of searching I found the six-pin plug but when tracing it out it doesn't come back to anything that I found on any forum. I find it pin one seems to be an actual ground but then pin two is hot with the ignition on and pin 3 seems to trace out to the center pin 7 at the plug on the back of the RV but it also will act as a ground. Pin 4 is hot with the ignition and pin 5 is dead. I tried changing the wire at the relay as suggested but no matter what, pin 2 is always hot with the ignition on and it doesn't seem to make any difference no matter what I do when touching the brakes. I'm hoping one of you guys are an expert at this and can guide me since I could always pick up a good 12 volt lead somewhere and tap into the braking system but I'm concerned about pin 3 back to pin 7 still acting as somewhat of a ground Plus all of the wiring in the owner's mail indicates that that pin 7 should be used for backup lights.

Can somebody please explain to me whether I have a regular electric horn that is switchable from the air horns since in the owner's manual it indicates it but I have no idea how to switch over? 05 Monaco Diplomat