Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 

Click Here to Login
View Single Post
Old 03-13-2019, 05:28 PM   #7
javelin
Senior Member
 
Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 1,410
THOR #2631
Hi Julius.....2014 Challenger. You just replaced the chassis battery......was all brake, signal, 4 way, park and dash lighting operating normally prior to the battery change over (other than a weak/bad old battery)?


Make double sure all your ground connections are clean and tight starting with new battery and any other engine bay grounds. I don’t know your coach, but many have a common ground cable bolted on the right side of the radiator in engine bay......if you do, make sure it is clean and tight.


It is very interesting that when you step on the brake the dash high beam lamp comes on, but not the high beam headlights (try checking this at night too for any glow from headlight or park light bulb filaments showing) since they typically are spliced and get their 12vdc together when appropriate switches are operated (like the vehicle multiuse switch on steering column). So, where would +12vdc battery come from to light the dash high beam indicator but not the actual high beam headlamps? Maybe a resistive +12vdc shorting to the high beam circuit......so just enough current to light a small dash lamp but not enough to light the actual high beams or blow any fuses. By resistive +12vdc I mean power somehow being backfed through lamp filaments to wrong circuits because of a bad ground somewhere else. The real head scratcher is determining a common failure mechanism that results in all the various issues you see.


Attaching an old generic Ford headlight schematic for reference.....shows high beam dash lamp in top right. It also seems that your radio is still powered but just triggered to switch into backup mode for rear camera to come on. Start with recent changes to see if something else was affected. If not, then pick one trouble to start with as it may result in clearing them all. This a good head scratcher.
Attached Files
File Type: doc Typical F53 Headlight Circuit.doc (263.5 KB, 37 views)
__________________
javelin is offline   Reply With Quote
 
» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 01:57 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2024, vBulletin Solutions, Inc.