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01-14-2020, 07:52 PM
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#1
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Member
Join Date: Jan 2020
Location: Santa Rosa Ca
Posts: 55
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2005 Monaco Executive lights
I have a 2005 Monaco Executive. The only headlight that illuminates is the driver side highbeam. I have no schematics. The light switch is on the dash. Cannot find any fuses for these lights. Does anyone have any insight on this issue. I swapped the bulbs from one side to the other and had the same issue.
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01-14-2020, 08:19 PM
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#2
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Senior Member
Join Date: Aug 2015
Posts: 410
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The first place I would check is any connections up front in the wiring in the area around the generator. Next, I would check the bulb sockets.
Dave
__________________
2004 Monaco Exercutive 40PBT, Cummins ISM 500 HP,
2017 Jeep Grand Cherokee Overland
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01-14-2020, 08:29 PM
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#3
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Member
Join Date: Jan 2020
Location: Santa Rosa Ca
Posts: 55
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The sockets look good. The drivers side highbeam read 12v. The other three read 6,4,0 volts.
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01-14-2020, 08:45 PM
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#4
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Senior Member
Join Date: Aug 2015
Posts: 410
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Check any inline connectors. I worked on a friends holiday rambler that had a generator that wouldn't start from inside and the problem was a corroded connection in the area I described in my first response. I cleaned it up and it started right up. Possibly the same type of issue. My water pump got to where it would not kick off and it was due to a bad connection also. It checked 12 volts when not running but would drop way down under load.
Dave
__________________
2004 Monaco Exercutive 40PBT, Cummins ISM 500 HP,
2017 Jeep Grand Cherokee Overland
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01-14-2020, 09:10 PM
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#5
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Senior Member
Monaco Owners Club
Join Date: Mar 2011
Posts: 889
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If you have a SmartWheel, the headlights are controlled by the headlight switch the high beam stalk, and the SmartWheel controller in the front run box.
I have the wiring diagram to a 2005 Signature that may be close enough.
Paul
__________________
Paul Whittle
2005 Monaco Signature 45'
525 HP/1850 Ft Lb ISX-15/6-Speed Allison 4000
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01-15-2020, 06:34 AM
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#6
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Member
Join Date: Jan 2020
Location: Santa Rosa Ca
Posts: 55
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Quote:
Originally Posted by pwhittle
If you have a SmartWheel, the headlights are controlled by the headlight switch the high beam stalk, and the SmartWheel controller in the front run box.
I have the wiring diagram to a 2005 Signature that may be close enough.
Paul
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I will check the smart wheel controller. That would be a big help if you could send your wiring schematic. I am sure the coaches are similar. 1ghostrider1955@gmail.com
Thank you
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01-15-2020, 07:10 AM
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#7
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Registered User
Monaco Owners Club
Join Date: Mar 2018
Location: Blairsville, GA & WPB, FL
Posts: 3,993
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There are labeled fuses on a board in the front run box. Hopefully your VIP smart wheel control does not have 2 burned connections on it...yet.
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01-15-2020, 07:24 AM
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#8
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Senior Member
Monaco Owners Club
Join Date: Jun 2014
Posts: 14,601
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Do the turn signal and running lights work???
Do you know if your light have been modified, some people have added a relay and addition power supply where by the headlight switch will control the relay and then pickup the new power supply, this reduces voltage drop.
Another member had problems with his headlights and I spent hours pouring over the chassis schematic for my (he had the same coach) coach.
The schematic showed that the power for the headlight when through the light switch, through the VIP smart wheel controller, then to the high/low beam switch on the steering column.
The fact that your have power to 1 headlight tells me that the switch, controller and high/low beam are all good.
There is one connector for each headlight but somewhere upstream they are tied together. I'd start on the side that is good and work your way back until you find the split then work your way to the bad side.
__________________
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
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01-15-2020, 08:02 AM
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#9
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Member
Join Date: Jan 2020
Location: Santa Rosa Ca
Posts: 55
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All the exterior lights operate. The headlights are the only issue. There is one bulb for the drivers side high/low beam and one bulb for the passenger high/ low beam. There are three wires red, black and green. The only light that illuminates is the d/s high beam.
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01-15-2020, 10:55 AM
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#10
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Member
Join Date: Jan 2020
Location: Santa Rosa Ca
Posts: 55
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I cannot find any low beam fuses. I see the highbeam fuses. The smart wheel controller looks okay no burnt areas.
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01-15-2020, 12:48 PM
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#11
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Senior Member
Join Date: Jul 2006
Location: Boise Valley (SW Idaho)
Posts: 2,018
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Monaco did some playing around with their headlight control design in the '05, '06, '07 period. There are two relays on circuit board #8 in the front run box that are part of the headlight control system. One is K1 and the other is K2. They have some drawings that show that one of those relays is used for low beam and the other is for high beam. Other drawings show that there are no relays in the low beam circuit but the K1 and K2 relays are for high beam LEFT and RIGHT, respectively.
The first thing I would probably check would be to see if you have voltage on terminal pin #2 of connector J1 on board #8 and on pin #5 of connector J1 on board #8. On our coach (an '06 Dynasty, a close cousin to your coach), that is how it is configured. That would give you a hint as to whether one of those relays could be your problem.
On our coach, the low beam lights are controlled by both the Canadian Headlight Module (CHM) that is mounted on the ceiling of the front run box and by the Smartwheel Controller that is also mounted in our front run box. I believe that the logic is that the CHM turns the low beam lamps on whenever the coach is running. I believe that the only input from the Smartwheel system is to allow flashing the low beam lamps to signal vehicles in front that it is safe to change lanes and to illuminate them when the light switch is on and the dimmer switch is in the low position. (Some call the flashing function to be using an ICC switch.) If the lights are off, the Smartwheel button will illuminate them while the button is held down. If the lights are on, the Smartwheel button will turn them off while the button is held down. It also powers the low beam lamps when the lights are on and the dimmer switch is in the low position.
The hight beam headlight power is switched by the two relays on board #8, K1 and K2. Note again, on many coaches, K1 is for the high beam lamps and K2 is for the low beam lamps.
If you would contact Paul (pwhittle) and get the wiring diagram for the '05 Signature, that will give you the information you need to troubleshoot your particular coach. I think the changes in the relay logic may have been at the end of your model year, or the beginning of the '06 design. What he has for you will be a huge help!
Jim J also made an excellent point. Many have modified their coaches to eliminate the high current in the control circuitry and the front run box by putting relays in the nose with power leads to a strong 12 volt source and operating the relays with the existing control circuitry. You should be able to see if that's been done, however, as it is likely that whatever the previous owner might have done would likely not look like a factory installation.
Good luck! Keep us posted.
__________________
Jim & Angie, Boise, ID
2021 Entegra Esteem 27U
2017 GMC Acadia Denali
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01-15-2020, 08:28 PM
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#12
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Senior Member
Monaco Owners Club
Join Date: Mar 2011
Posts: 889
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My DRL output is wired to the output of the SmartWheel controller. I think the DRL module sends a reduced voltage to the lights so that when the SmartWheel headlight flash is activated, they get the full voltage and there is a small difference in the headlights, but not enough for anyone to see as a clear indicator that it is safe to change lanes.
The DRL module makes the headlight glass ineffective. I plan to disable mine or update the wiring to restore headlight flash functionality. I also plan to add a relay for the low beams to reduce current through the Smartwheel controller and the high beam switch.
The last thing I plan to do is to change the wiring so that the low beams stay on when the high beams come on. Our coach has Ford Expedition headlights with separate bulbs for high and low beams.
The ICC is the Smartwheel button on the right and flashes the clearance lights.
Paul
__________________
Paul Whittle
2005 Monaco Signature 45'
525 HP/1850 Ft Lb ISX-15/6-Speed Allison 4000
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01-16-2020, 08:18 AM
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#13
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Member
Join Date: Jan 2020
Location: Santa Rosa Ca
Posts: 55
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2005 Monaco executive lighting
I was looking on the VIP web sight. The schematic shows the smart wheel controller operates a bunch of things I am having issues with. My headlights only work on high beam D/S. My windshield wipers barely work, very slow then stop. My cruise control does not work, but I can increase the engine rpm in neutral while idling. Has anyone had any issues like this? Smart bow? I do not see any burnt spots that are visible on the circuit board.
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01-16-2020, 10:21 AM
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#14
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Member
Join Date: Jan 2020
Location: Santa Rosa Ca
Posts: 55
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2005 Monaco executive lighting
Found the schematics! I contacted Monaco REV group and I received the lighting schematics.
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