No Headlights or Turnsignals

mjurgen889 · 12-02-2011, 05:36 PM

Drove the coach from storage to home to prepare for a trip to FL on Monday to celebrate my retirement. It's an '05 Horizon. Turned on the headlights and nothing - no dash lights, no fog lights, no turn signals no bright/dim. Everything else on the dash works fine - everything. I haven't checked fuses because of the number of similar failures. Is there any one thing that can affect the lights and cause all these not to work (parking, headlamp, turn signals and dash backlighting)? By the way, none of the above lights work regardless of power source.

Thanks!

Mike

mjurgen889 · 12-02-2011, 07:49 PM

Update - checked the fuses - none burned through. So, back to square one. Two auto parts stores suggested the headlight switch might be the problem. Anyone ever seen this?

RKL · 12-02-2011, 08:00 PM

Mike...I had seen this problem while I had my toad plug in to the motorhome...It was a short in the wiring harness plug for the toad....good luck...don't know if you where towing at the time..... RKL

Aguyfromcalg · 12-02-2011, 08:01 PM

Yes I have. If the part store is wrong just return it

mjurgen889 · 12-03-2011, 01:33 AM

Thanks for the suggestion. We haven't towed anything since we purchased it 4 mod ago. Other ideas? While things do "just happen", this one doesn't make much sense since we haven't used it (other than to fill it up and drive it home from the dealer) since we purchased it.

MJ

W8RLM · 12-03-2011, 07:45 PM

Did they work when you picked up the coach from the dealer? I didn't see that mentioned in your post.

Could also be a bad ground. Perhaps Winnebago Customer Service or Freightliner can help you check them out.

W8RLM - Bob

SVTotem · 12-03-2011, 09:17 PM

This sounds like a problem I had.

Under the dash there is a lamp control module attached to the firewall near the steering column. It is about 3"x5", has two large connectors, and has InPower written on it. Check for security of these connectors, but you should call Freightliner help and describe the symptoms. If this module is the issue it is a simple DIY, but about $300.

Let us know what the final outcome is.

mjurgen889 · 12-04-2011, 05:04 AM

Returned the coach to the dealer yesterday afternoon. They are a Tiffin (and others) dealer so they may or may not be familiar with this component. They do sell other Freight-liner based coaches however. I will call them first thing and tell them. Thanks for the heads up!

SVTotem · 12-06-2011, 04:08 PM

Mjurgen,
How did things turn out?

If you are taking the coach to the dealer I still suggest calling Freightliner first ((800) 385-4357). It is always a good idea to have as much information as possible when dealing with these guys.

mjurgen889 · 12-07-2011, 05:03 AM

Quote:

Originally Posted by SVTotem

Mjurgen,
How did things turn out?

If you are taking the coach to the dealer I still suggest calling Freightliner first ((800) 385-4357). It is always a good idea to have as much information as possible when dealing with these guys.

Thanks - more good advice for a new owner! The problem was solved
yesterday and turned out to be Low chassis battery voltage. Apparently the Inpower light module will open when the chassis battery voltage drops below a threshold. Once the batteries were replaced (I knew one was bad and was having it replaced - we replaced both though) , we pulled the light harness connector and the relay reset. Plugged it back in, lights powered up and drove 500 mi yesterday without a problem!

Thanks to all who responded - this is a great resource !

SVTotem · 12-07-2011, 06:08 AM

Glad you got it sorted out without replacing the module. Mine was expensive.