Skip to main content ↑ ↓
Topic: No power when ignition switch is turned (Read 702 times) previous topic - next topic

No power when ignition switch is turned

Replaced start batteries last week and coach started just fine 5 or six times since.  Today when I drove the coach and shut it down and tried to restart nothing...dead...no relays no power to anything related to turning the key to just the on position.  I searched the forum and found nothing with no power.  I checked the solenoid under the bed from battery and I have good juice there.  Where is a main fuse located on a 2003 U320?  Thanks for any suggestions.  Help.... David 
David & Lou Ann Bouchard
Summer: Mount Vernon, Ohio
Winter: RiverBend Motorcoach Resort  LaBelle, Florida
2003 U320 38' Build #6174 "Willie"
2013 Cadillac SRX Toad
MC #17151 FMCA #F431393

Re: No power when ignition switch is turned

Reply #1 –
Ignition Solenoid-- under dash.  A common failure item.

Symptom: NOTHING that should work with ignition on works.

Yes, it could also be an ignition switch, but very easy to diagnose.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: No power when ignition switch is turned

Reply #2 –
Where under the dash Brett?  Thanks
David & Lou Ann Bouchard
Summer: Mount Vernon, Ohio
Winter: RiverBend Motorcoach Resort  LaBelle, Florida
2003 U320 38' Build #6174 "Willie"
2013 Cadillac SRX Toad
MC #17151 FMCA #F431393

Re: No power when ignition switch is turned

Reply #3 –
Lift the dash top up (if like our U300) and it will be right in front of the steering wheel. Silver and should look like this one: Cole Hersee 24213 BX 12V 4 Terminal 200 Amp Continuous Duty Solenoid SPST No |

If the batteries were just replaced, I would double check the installation for loose battery terminal also.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: No power when ignition switch is turned

Reply #4 –
David,

Yours should be located behind the removable panel in front of the passengers seat. Here is a pic. sequence as to where to look.

Pamela & Mike

Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: No power when ignition switch is turned

Reply #5 –
Quote from: Pamela & Mike –
David,

Yours should be located behind the removable panel in front of the passengers seat. Here is a pic. sequence as to where to look.

Pamela & Mike



Correct.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: No power when ignition switch is turned

Reply #6 –
Ok thanks again.  I will look in the am and report back.  David
David & Lou Ann Bouchard
Summer: Mount Vernon, Ohio
Winter: RiverBend Motorcoach Resort  LaBelle, Florida
2003 U320 38' Build #6174 "Willie"
2013 Cadillac SRX Toad
MC #17151 FMCA #F431393

Re: No power when ignition switch is turned

Reply #7 –
If you just replaced your starting batteries recheck battery connection. Especially the negative. I suspect if you have nothing then its a connection problem somewhere.
1995 U320 40', 2013 chevy sonic toad, my real love are corvettes have owned 30

Re: No power when ignition switch is turned

Reply #8 –
All battery connections were tight.  Never could find the solenoid behind the panel in front of passengers seat.  I crawled back under coach and took off all ground connectors and low and behold there was a hunk of road grime... Old grease yuck on one of the cable ends.  Cleaned all connections and fired right up.  I suspect when I pushed the cables up out of the way when installing them (in such a convenient location) one rubbed the frame and I did not see it.  After the battery install the coach did fire right up and I even had it out on a 30 mile exercise.  I guess somehow I jarred it enough to make it do what it did.  Thanks to all for the info and advice.  I am going to post a pic behind the panel and hopefully someone can point out what I may be missing.  Thanks again,  David
David & Lou Ann Bouchard
Summer: Mount Vernon, Ohio
Winter: RiverBend Motorcoach Resort  LaBelle, Florida
2003 U320 38' Build #6174 "Willie"
2013 Cadillac SRX Toad
MC #17151 FMCA #F431393
 

Re: No power when ignition switch is turned

Reply #9 –
David,

When the mood strikes you, it's never a bad idea to make up an extra ground cable and go from your start batteries to the closest frame ground. Good to see the engine has a good chassis ground also.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)