Brake lights

enblethen wrote:
Power is feed (power) to the brake switch and the hazard flasher on orange wires. Splice shows being on the hazard flasher base.
Purple wire shows as being the power feed (power) to the direction switch.
Dark green is going to the is going to the right rear brake/turn lamp
yellow goes to the left brake and turn.
The blues, light and dark goes to the front. I think I said those went to the rear, I erred.
The directional switches acts as an isolator so the front turn signals don't come on with the brake light switch.

I may not have mentioned but my brake lights are not with the turn signals. They have their own bulb and separate lens. Can I for simplicity cut wire after switch and run new wires to the back lights. Or splice and run.

Jim

Power is feed (power) to the brake switch and the hazard flasher on orange wires. Splice shows being on the hazard flasher base.
Purple wire shows as being the power feed (power) to the direction switch.
Dark green is going to the is going to the right rear brake/turn lamp
yellow goes to the left brake and turn.
The blues, light and dark goes to the front. I think I said those went to the rear, I erred.
The directional switches acts as an isolator so the front turn signals don't come on with the brake light switch.

enblethen wrote:
From the brake light switch, power goes to the Direction switch on the white wire going up the steering column.
It goes to a common point for both wires going to the rear of the rig. Light blue goes to the left light and dark blue goes to right.
I would say the Direction switch could be suspect.

There is a white wire on the harness and two orange. The white has a splice that goes to the trailer brake controller. The white and the two orange go about 18" and disappear into a larger group of wires from numerous directions.
On the column, I find a strand of wires together, white, green, purple, lt blue, dk blue, yellow, etc. Is this the wire you are referring to? I'm slightly confused.... if I have voltage at the switch, is it coming down the white wire from the column or coming from the two orange wires? If the white is hot then the switch in the column shouldn't be an issue, and if the current is going the other way, why would it go through the column?
Not doubting you just trying to understand the engineering.


Much appreciated!

Jim

From the brake light switch, power goes to the Direction switch on the white wire going up the steering column.
It goes to a common point for both wires going to the rear of the rig. Light blue goes to the left light and dark blue goes to right.
I would say the Direction switch could be suspect.

I have the same issue.
1994 30' Coronado on P30 frame.

Fuse good.
12v at brake light switch.
Jump wire across, still no lights.
Bulbs good. No voltage at socket.

Running lights, blinkers and flashers all good.

I guess it wire tracing time.

Jim

I have the same type of problem. When I step on the brake pedal, the MH stops, but when I get out of the cab to go look, the brake lights are never on. :)

TomG may be referring to Bargman lights with either two or three lamps per side, I believe they are "Series 84." I tired of bulb and socket issues and replaced with Bargman LED lamp assemblies. These are whole new clusters of lamps, lenses, frames, etc. Bargman offers LED "conversions" but they add up to as much cost as the full assembly AND they still use the original sockets. The assemblies wire direct to the coach's wiring where the original were removed. I'm very pleased with ours.

This is a pic of the LED version, and there's also a two-lamp replacement. This pic is from PPL, but I ordered ours from Eastern Marine. They use the same holes, 8 if I recall, and should be sealed to the coach body with Butyl Tape.

I have a Forest River MH and their Forum indicates many owners have had problems with the Bargman rear light lenses leaking. If you have Bargman rear lights this may be your problem. If the bulbs get wet they will explode. Also all my sockets corroded badly as well. Bargman sells led lens and light combos that I purchased. A great improvement and no more leaking and corrosion.

I have a recurring problem with a brake lite lamp. The connector gets corroded and needs cleaning periodically. Thereafter its good for a while. I think it gets exacerbated by its own heat.

By the way, clean it with a white pencil eraser, not a pink one, which contains red phosphorus and makes for even more corrosion.

Yup... More info is needed.

Start with the basics BTPO1 suggested.

If you have a Ford, there are actually 4 fuses that could affect brake lights, depending on which circuit the coach builder used for the coach's light.

On the Chevy, I think there is only one fuse specifically for brake lights, but they also have a high failure rate in the brake light switch.

Also, by 2006 either Ford or Chevies can lose brake lights if the wrong mode is selected in the Body Control Module (Separate vs Combined rear lights), which could go back to default if the computer was reflashed.

Do your rear turn signals work? Hazard lights?