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Old 10-25-2014, 05:48 PM   #1
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No brake lights

I have a 1997 Beaver Monterey. I noticed that both my brake lights were not working. Installed new bulbs. No luck. Parking lights work fine. Check fuse. It is good. I also have Towmate wireless towing light. Brake lights also don't work on that. They did when first installed. I have power running from the electrical bay. How can I check for power for brake light at the lens? Could the brake switch on pedal given out. How do I check for continuity thru the system? I how just enough knowledge to get me in a pile of trouble. Any help is greatly appreciated. Thanks.

Chris & Hayley
1997 Beaver Monterey, 2005 Honda CRV
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Old 10-25-2014, 08:59 PM   #2
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To keep it simple I would change the brake light switch at the brake pedal.
If you want to spend a little time and effort get a cheap test light and start at the brake light switch and test for power. If your tester lights up just work your way down the wires till the test light won't light up.

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Old 10-25-2014, 09:42 PM   #3
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Check the brake pedal switch. Also a blown fuse can be a common cause of the brake light not working. So check both.

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Old 10-27-2014, 06:48 AM   #4
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Before you get too excited about checking the wiring harness, double check that you don't have a second fuse box.

Ford for instance has a second fuse box that contains the fuses for any trailer being towed. Some coach builders use the OEM trailer lighting package for the motorhome body itself. That would explain why your trailer lights don't work either.
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Old 10-27-2014, 08:20 PM   #5
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Those can be pesky problems. My two best friends on these projects are a 12v test light with a probe, and a tone generator. You can get an inexpensive one from amazon
Extech TG20 Wire Tracer/Tone Generator - - Amazon.com
is an example.

Like others suggest, I'd check at the switch. If I recall, you'll have power to the switch and pressing the pedal closes the circuit, so its easy to see if its working with a test light. If that doesn't find the problem, I'd probably use the tone generator by hooking the generator part to the line at the switch and then using the detector on the wiring. I'd start with that back in the engine compartment. I've seen problems in that area more than once and I'd focus on where your trailer lights tap in.
good luck.
Toni Froehling
2005 Country Coach Inspire 51431
Orting, WA
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brake, brake lights, lights

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