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Brown774

No Power To Ignition Switch

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We have a 2007 Monaco Diplomat that won't start. Start batteries are good.

Power is present at the ON/Off switch to the Patio Awning.

The electric step will not retract when retract switch is activated with door open or closed.

With the key engaged to start the drive engine or in ACC mode nothing happens.

No dash lights or instruments are powered up.

Any ideas?

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If nothing that only works with the ignition switch on is not working, first suspect is the IGNITION SOLENOID.  The ignition switch just provided the power to close the solenoid.  It will likely be in the forward electrical area.  One large lug has 12+ VDC all the time from the chassis battery.  The other large lug should be hot/same voltage only when the ignition switch is ON. 

There will be either one or two small wires/terminals as well.  If one, it receives 12 VDC + from the ignition switch when you turn the key.  If two, one is the one just mentioned, the other a ground.  If only one, the body of the solenoid provides the ground.

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Just turning the key to the on position (no far enough to cause the starter to turn) should cause a noticeable "click" which is the Ignition solenoid coming to life.  If this is not happening the solenoid may be defective but, at least in my coach, it can be jumped to allow voltage to pass so the coach can be started.  This will get you out of a bind like it did me when mine died at the check-in driveway at Coos Bay Casino RV park.

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BillA.  Coos bay Casino...one of my favorite places in OR., Seven Feathers is also nice, but I have family in Coos Bay!

Like a older car, it works, I used to use a long screw driver. 

Carl 

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Bill,

Totally agree-- there are some easy/safe "work arounds".

Safest is to remove the cable from one large lug and ADD IT to the other large lug.  Now the ignition is on all the time until you disconnect it.  So you  can not shut off the engine without disconnecting. But MUCH better than being stranded on the side of the road!

Jumper wires can be tricky, as there are a lot of amps available from the chassis battery.  If one end jumps off and hits ground-- WOW!

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I  absolutely bow to your knowledge and my lack of clarity of information.  I am just saying that I got stuck, I got help from the manufacturer that got me out of the parking lot and into the RV space.  In reading about your post, I may have moved the the cable from one side to the other as you describe.  My memory is bad and your information is so on point!  Thanks.

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Well, your right, have not done the screw driver on a diesel...cars, it works good.  Diesel, I do believe I would wire it as Brett suggest...lots of juice to light me up! :(

Carl

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In the past I have used my jumper cable to power the coach till I could move it to a safer location and be able to replace the solenoid. I carry a spare just in case.

Herman

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Herman,

While a jumper cable will work, it is quite a lot more dangerous, as you are dealing with large-gauge wires "powered by" large battery banks.  If the jumper comes off and touches any metal (ground), bad things can happen.  You don't want to be "arc welding" driving down the road.  And just a dangerous, if the jumper comes off, you loose all power and are dead on the road right there.

Much safer to remove one large wire and ADD it to the other large wire/lug.  Electrically the same, but a lot safer.

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20 hours ago, Brown774 said:

We have a 2007 Monaco Diplomat that won't start. Start batteries are good.

Power is present at the ON/Off switch to the Patio Awning.

The electric step will not retract when retract switch is activated with door open or closed.

With the key engaged to start the drive engine or in ACC mode nothing happens.

No dash lights or instruments are powered up.

Any ideas?

Have you tried to use the battery connect switch?

Bill

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