Trailer Wiring

[Curt Sprenger]

Before I begin...It's a good idea to sketch out on paper a new panel as
described later. Also the bus original receptacle, a new wire loom, and
a new brake controller.

I've pretty much finished the bus
Trailer Wiring project. Just need to tidy up a bit. All is working from
what I can tell. I need to hook the trailer to the bus to validate the
new trailer brake controller. The controller's display shows it's not
hooked up to the bus which is true.


What I did...I made up an 80' loom (6 wires, allowing wires for
future). I thought I had too much wire...ended up using all but 2'.
Took a day to install the wire loom...that counts my buddies stopping
to talk. I used #14 wire to make the loom. The the loom is inside 5/8"
split loom... #16 or #18 wire would work, and will make it easier to
install the smaller diameter loom. The loom wires are used to trigger
relays (turn them on) and then wire the relay output # 87using larger
size wire to the trailer 7 pin receptacle.


I also made up a panel consisting of....6 relays, an 8 gang fuse
block, one 30 amp circuit breaker (CB), and a ground lug. I labeled the
relays L, LT, RT, BK, 12V, BU. The relay ground pins # 86 are wired to
the ground lug on the new panel.


The CB provides power to the 8 gang fuse block. The other side of
the 8 gang fuse block, one each, is wired to a # 30 relay pin.

The
original trailer receptacle wires ...I used three of the wires. Testing
them showed they are OK. The wires are the Lights (L), Left Turn (LT),
Right Turn (RT). Two other wires did not show any power. One could have
been a ground wire. The three wires were wired to trigger the L, LT, RT
(new) relay # 85 pins.


Two new loom wires were used to send signals back to the # 85 relay
terminals on the new panel. The signals are the brake controller brake
wire from the new brake controller, and a back-up light wire. The
back-up wire is connected to the Back-Up pole on the gen compartment
12V panel.


The brake controller exciter signal is wired to the Stop Light pole
on the gen compartment 12V panel. Power for the brake controller is
taken from one of the CBs out front of the driver. And the ground is connected out front as well.


The 12V relay on the new panel...power is supplied from the battery
collection lug (isolator), to the input side of the 30 amp CB. The CB
output side supplies the feed to the # 85 pin on the 12V relay.
Complete all other wiring before doing this step.



The relay # 87 wire to the trailer receptacle...All are # 12 wires
except for the 12V and the Brake and they are #10. The #10 might be
overkill but that's me.


The only real issue is routing the new wire loom. The rest is easier than it sounds. I'm getting ready for the Buellton, CA rally and for now do not have the time to make up a schematic.



Our coach has dual (each side) red led tail/brake/turn/flasher LED lights.



With the brake applied along with a L or R turn, the turn side blinks, the other side is a steady brake light.



I'll try to get to hooking up the trailer tomorrow. I'll keep you posted.

[Donald Watson]

Kurt,

It looks as though you have thought this out and are doing a good job.

What are you using for relay sockets and how are you wiring the sockets?

I was going to build a panel for rear and trailer lights and had yet to make
a decision. I do have a quantity of copper clad circuit board material I
could mill for automotive relay PC board sockets.

I've probably missed previous posts on trailer brake controllers, but it
sounds as though you are using new technology I am not familiar with to
supply the variable DC brake voltage. What are you using for a brake
controller?

Thank you for sharing with us all.

Donn
'76 FC33
South Kingstown, RI

From: WanderlodgeForum@yahoogroups.com
[mailto:WanderlodgeForum@yahoogroups.com] On Behalf Of Curt Sprenger
Sent: Tuesday, October 21, 2008 12:54 AM
To: WanderlodgeForum
Subject: [WanderlodgeForum] Trailer Wiring

Before I begin...It's a good idea to sketch out on paper a new panel as
described later. Also the bus original receptacle, a new wire loom, and a
new brake controller.

I've pretty much finished the bus Trailer Wiring project. Just need to tidy
up a bit. All is working from what I can tell. I need to hook the trailer to
the bus to validate the new trailer brake controller. The controller's
display shows it's not hooked up to the bus which is true.

What I did...I made up an 80' loom (6 wires, allowing wires for future). I
thought I had too much wire...ended up using all but 2'. Took a day to
install the wire loom...that counts my buddies stopping to talk. I used #14
wire to make the loom. The the loom is inside 5/8" split loom... #16 or #18
wire would work, and will make it easier to install the smaller diameter
loom. The loom wires are used to trigger relays (turn them on) and then wire
the relay output # 87using larger size wire to the trailer 7 pin receptacle.


I also made up a panel consisting of....6 relays, an 8 gang fuse block, one
30 amp circuit breaker (CB), and a ground lug. I labeled the relays L, LT,
RT, BK, 12V, BU. The relay ground pins # 86 are wired to the ground lug on
the new panel.

The CB provides power to the 8 gang fuse block. The other side of the 8 gang
fuse block, one each, is wired to a # 30 relay pin.

The original trailer receptacle wires ...I used three of the wires. Testing
them showed they are OK. The wires are the Lights (L), Left Turn (LT), Right
Turn (RT). Two other wires did not show any power. One could have been a
ground wire. The three wires were wired to trigger the L, LT, RT (new) relay
# 85 pins.

Two new loom wires were used to send signals back to the # 85 relay
terminals on the new panel. The signals are the brake controller brake wire
from the new brake controller, and a back-up light wire. The back-up wire is
connected to the Back-Up pole on the gen compartment 12V panel.

The brake controller exciter signal is wired to the Stop Light pole on the
gen compartment 12V panel. Power for the brake controller is taken from one
of the CBs out front of the driver. And the ground is connected out front as
well.

The 12V relay on the new panel...power is supplied from the battery
collection lug (isolator), to the input side of the 30 amp CB. The CB output
side supplies the feed to the # 85 pin on the 12V relay. Complete all other
wiring before doing this step.

The relay # 87 wire to the trailer receptacle...All are # 12 wires except
for the 12V and the Brake and they are #10. The #10 might be overkill but
that's me.

The only real issue is routing the new wire loom. The rest is easier than it
sounds. I'm getting ready for the Buellton, CA rally and for now do not have
the time to make up a schematic.

Our coach has dual (each side) red led tail/brake/turn/flasher LED lights.

With the brake applied along with a L or R turn, the turn side blinks, the
other side is a steady brake light.

I'll try to get to hooking up the trailer tomorrow. I'll keep you posted.

[Gregory OConnor]

Curt, here is a diagram which sounds to be the same as you describe. CurtTechnologies

I was looking for a diagram of what the fourway flasher switch on the bus powers and why there is a directional flasher unit and a fourway flasher unit . ???? cant understand the issue I had with fourway flasher blinking the brake controller causing trailer brakes to pulse on and off and cant remember the change I made to repair it.

one other point to reviewis left and right landing lights powering up with turn signals. I wonder if they were the WL labled relays?

Greg94ptCa

--- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger" wrote:
>
> Before I begin...It's a good idea to sketch out on paper a new panel as
> described later. Also the bus original receptacle, a new wire loom, and a
> new brake controller.
>
> I've pretty much finished the bus Trailer Wiring project. Just need to tidy
> up a bit. All is working from what I can tell. I need to hook the trailer to
> the bus to validate the new trailer brake controller. The controller's
> display shows it's not hooked up to the bus which is true.
>
> What I did...I made up an 80' loom (6 wires, allowing wires for future). I
> thought I had too much wire...ended up using all but 2'. Took a day to
> install the wire loom...that counts my buddies stopping to talk. I used #14
> wire to make the loom. The the loom is inside 5/8" split loom... #16 or #18
> wire would work, and will make it easier to install the smaller diameter
> loom. The loom wires are used to trigger relays (turn them on) and then wire
> the relay output # 87using larger size wire to the trailer 7 pin receptacle.
>
>
> I also made up a panel consisting of....6 relays, an 8 gang fuse block, one
> 30 amp circuit breaker (CB), and a ground lug. I labeled the relays L, LT,
> RT, BK, 12V, BU. The relay ground pins # 86 are wired to the ground lug on
> the new panel.
>
> The CB provides power to the 8 gang fuse block. The other side of the 8 gang
> fuse block, one each, is wired to a # 30 relay pin.
>
> The original trailer receptacle wires ...I used three of the wires. Testing
> them showed they are OK. The wires are the Lights (L), Left Turn (LT), Right
> Turn (RT). Two other wires did not show any power. One could have been a
> ground wire. The three wires were wired to trigger the L, LT, RT (new) relay
> # 85 pins.
>
> Two new loom wires were used to send signals back to the # 85 relay
> terminals on the new panel. The signals are the brake controller brake wire
> from the new brake controller, and a back-up light wire. The back-up wire is
> connected to the Back-Up pole on the gen compartment 12V panel.
>
> The brake controller exciter signal is wired to the Stop Light pole on the
> gen compartment 12V panel. Power for the brake controller is taken from one
> of the CBs out front of the driver. And the ground is connected out front as
> well.
>
> The 12V relay on the new panel...power is supplied from the battery
> collection lug (isolator), to the input side of the 30 amp CB. The CB output
> side supplies the feed to the # 85 pin on the 12V relay. Complete all other
> wiring before doing this step.
>
> The relay # 87 wire to the trailer receptacle...All are # 12 wires except
> for the 12V and the Brake and they are #10. The #10 might be overkill but
> that's me.
>
> The only real issue is routing the new wire loom. The rest is easier than it
> sounds. I'm getting ready for the Buellton, CA rally and for now do not have
> the time to make up a schematic.
>
> Our coach has dual (each side) red led tail/brake/turn/flasher LED lights.
>
> With the brake applied along with a L or R turn, the turn side blinks, the
> other side is a steady brake light.
>
> I'll try to get to hooking up the trailer tomorrow. I'll keep you posted.
>

[Curt Sprenger]

Donn,

No relay sockets. I prefer to wire the relays. That way I can use the size wire I want.

The write up I posted identifies the relay wiring.

The panel board is 1/8" aluminum.

The new brake controller is the Tekonsha Prodigy.

On Tue, Oct 21, 2008 at 6:43 AM, Donald Watson <"dwatson@oceaninlay.com"> wrote:

Kurt,



It looks as though you have thought this out and are doing a good job.



What are you using for relay sockets and how are you wiring the sockets?



I was going to build a panel for rear and trailer lights and had yet to make

a decision. I do have a quantity of copper clad circuit board material I

could mill for automotive relay PC board sockets.



I've probably missed previous posts on trailer brake controllers, but it

sounds as though you are using new technology I am not familiar with to

supply the variable DC brake voltage. What are you using for a brake

controller?



Thank you for sharing with us all.



Donn

'76 FC33

South Kingstown, RI



From: "WanderlodgeForum%40yahoogroups.com"

[mailto:"WanderlodgeForum%40yahoogroups.com"] On Behalf Of Curt Sprenger

Sent: Tuesday, October 21, 2008 12:54 AM

To: WanderlodgeForum

Subject: [WanderlodgeForum] Trailer Wiring

Before I begin...It's a good idea to sketch out on paper a new panel as

described later. Also the bus original receptacle, a new wire loom, and a

new brake controller.



I've pretty much finished the bus Trailer Wiring project. Just need to tidy

up a bit. All is working from what I can tell. I need to hook the trailer to

the bus to validate the new trailer brake controller. The controller's

display shows it's not hooked up to the bus which is true.



What I did...I made up an 80' loom (6 wires, allowing wires for future). I

thought I had too much wire...ended up using all but 2'. Took a day to

install the wire loom...that counts my buddies stopping to talk. I used #14

wire to make the loom. The the loom is inside 5/8" split loom... #16 or #18

wire would work, and will make it easier to install the smaller diameter

loom. The loom wires are used to trigger relays (turn them on) and then wire

the relay output # 87using larger size wire to the trailer 7 pin receptacle.



I also made up a panel consisting of....6 relays, an 8 gang fuse block, one

30 amp circuit breaker (CB), and a ground lug. I labeled the relays L, LT,

RT, BK, 12V, BU. The relay ground pins # 86 are wired to the ground lug on

the new panel.



The CB provides power to the 8 gang fuse block. The other side of the 8 gang

fuse block, one each, is wired to a # 30 relay pin.



The original trailer receptacle wires ...I used three of the wires. Testing

them showed they are OK. The wires are the Lights (L), Left Turn (LT), Right

Turn (RT). Two other wires did not show any power. One could have been a

ground wire. The three wires were wired to trigger the L, LT, RT (new) relay

# 85 pins.



Two new loom wires were used to send signals back to the # 85 relay

terminals on the new panel. The signals are the brake controller brake wire

from the new brake controller, and a back-up light wire. The back-up wire is

connected to the Back-Up pole on the gen compartment 12V panel.



The brake controller exciter signal is wired to the Stop Light pole on the

gen compartment 12V panel. Power for the brake controller is taken from one

of the CBs out front of the driver. And the ground is connected out front as

well.



The 12V relay on the new panel...power is supplied from the battery

collection lug (isolator), to the input side of the 30 amp CB. The CB output

side supplies the feed to the # 85 pin on the 12V relay. Complete all other

wiring before doing this step.



The relay # 87 wire to the trailer receptacle...All are # 12 wires except

for the 12V and the Brake and they are #10. The #10 might be overkill but

that's me.



The only real issue is routing the new wire loom. The rest is easier than it

sounds. I'm getting ready for the Buellton, CA rally and for now do not have

the time to make up a schematic.



Our coach has dual (each side) red led tail/brake/turn/flasher LED lights.



With the brake applied along with a L or R turn, the turn side blinks, the

other side is a steady brake light.



I'll try to get to hooking up the trailer tomorrow. I'll keep you posted.

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

[Curt Sprenger]

Trailer Panel photos are in the Photo Section. See Curt Sprenger folder.

On Tue, Oct 21, 2008 at 8:14 AM, Curt Sprenger <"curtsprenger@gmail.com"> wrote:

Donn,

No relay sockets. I prefer to wire the relays. That way I can use the size wire I want.


The write up I posted identifies the relay wiring.

The panel board is 1/8" aluminum.

The new brake controller is the Tekonsha Prodigy.

On Tue, Oct 21, 2008 at 6:43 AM, Donald Watson <"dwatson@oceaninlay.com"> wrote:

Kurt,



It looks as though you have thought this out and are doing a good job.



What are you using for relay sockets and how are you wiring the sockets?



I was going to build a panel for rear and trailer lights and had yet to make

a decision. I do have a quantity of copper clad circuit board material I

could mill for automotive relay PC board sockets.



I've probably missed previous posts on trailer brake controllers, but it

sounds as though you are using new technology I am not familiar with to

supply the variable DC brake voltage. What are you using for a brake

controller?



Thank you for sharing with us all.



Donn

'76 FC33

South Kingstown, RI



From: "WanderlodgeForum%40yahoogroups.com"

[mailto:"WanderlodgeForum%40yahoogroups.com"] On Behalf Of Curt Sprenger

Sent: Tuesday, October 21, 2008 12:54 AM

To: WanderlodgeForum

Subject: [WanderlodgeForum] Trailer Wiring

Before I begin...It's a good idea to sketch out on paper a new panel as

described later. Also the bus original receptacle, a new wire loom, and a

new brake controller.



I've pretty much finished the bus Trailer Wiring project. Just need to tidy

up a bit. All is working from what I can tell. I need to hook the trailer to

the bus to validate the new trailer brake controller. The controller's

display shows it's not hooked up to the bus which is true.



What I did...I made up an 80' loom (6 wires, allowing wires for future). I

thought I had too much wire...ended up using all but 2'. Took a day to

install the wire loom...that counts my buddies stopping to talk. I used #14

wire to make the loom. The the loom is inside 5/8" split loom... #16 or #18

wire would work, and will make it easier to install the smaller diameter

loom. The loom wires are used to trigger relays (turn them on) and then wire

the relay output # 87using larger size wire to the trailer 7 pin receptacle.



I also made up a panel consisting of....6 relays, an 8 gang fuse block, one

30 amp circuit breaker (CB), and a ground lug. I labeled the relays L, LT,

RT, BK, 12V, BU. The relay ground pins # 86 are wired to the ground lug on

the new panel.



The CB provides power to the 8 gang fuse block. The other side of the 8 gang

fuse block, one each, is wired to a # 30 relay pin.



The original trailer receptacle wires ...I used three of the wires. Testing

them showed they are OK. The wires are the Lights (L), Left Turn (LT), Right

Turn (RT). Two other wires did not show any power. One could have been a

ground wire. The three wires were wired to trigger the L, LT, RT (new) relay

# 85 pins.



Two new loom wires were used to send signals back to the # 85 relay

terminals on the new panel. The signals are the brake controller brake wire

from the new brake controller, and a back-up light wire. The back-up wire is

connected to the Back-Up pole on the gen compartment 12V panel.



The brake controller exciter signal is wired to the Stop Light pole on the

gen compartment 12V panel. Power for the brake controller is taken from one

of the CBs out front of the driver. And the ground is connected out front as

well.



The 12V relay on the new panel...power is supplied from the battery

collection lug (isolator), to the input side of the 30 amp CB. The CB output

side supplies the feed to the # 85 pin on the 12V relay. Complete all other

wiring before doing this step.



The relay # 87 wire to the trailer receptacle...All are # 12 wires except

for the 12V and the Brake and they are #10. The #10 might be overkill but

that's me.



The only real issue is routing the new wire loom. The rest is easier than it

sounds. I'm getting ready for the Buellton, CA rally and for now do not have

the time to make up a schematic.



Our coach has dual (each side) red led tail/brake/turn/flasher LED lights.



With the brake applied along with a L or R turn, the turn side blinks, the

other side is a steady brake light.



I'll try to get to hooking up the trailer tomorrow. I'll keep you posted.

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

[Kurt Horvath]

Curt,

Looked at photos, Nice job! I am confused why did you have to make
an entire new set up for the trailer plug? Origonal wires not
fuctioning or not up to spec? I have been reading the posts and I
don't recall how this all came about.
I am also very interested in where you ran the new wire loom thru the
coach. I have been planning on this just to get more wires from the
dash to the engine compartment, for future potential up grades.
Thanks for your time

Kurt Horvath
95 PT 42
10AC


--- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
wrote:
>
> Trailer Panel photos are in the Photo Section. See Curt Sprenger
folder.
>
> On Tue, Oct 21, 2008 at 8:14 AM, Curt Sprenger
wrote:
>
> > Donn,
> >
> > No relay sockets. I prefer to wire the relays. That way I can use
the size
> > wire I want.
> >
> > The write up I posted identifies the relay wiring.
> >
> > The panel board is 1/8" aluminum.
> >
> > The new brake controller is the Tekonsha Prodigy.
> >
> >
> > On Tue, Oct 21, 2008 at 6:43 AM, Donald Watson wrote:
> >
> >> Kurt,
> >>
> >> It looks as though you have thought this out and are doing a
good job.
> >>
> >> What are you using for relay sockets and how are you wiring the
sockets?
> >>
> >> I was going to build a panel for rear and trailer lights and had
yet to
> >> make
> >> a decision. I do have a quantity of copper clad circuit board
material I
> >> could mill for automotive relay PC board sockets.
> >>
> >> I've probably missed previous posts on trailer brake
controllers, but it
> >> sounds as though you are using new technology I am not familiar
with to
> >> supply the variable DC brake voltage. What are you using for a
brake
> >> controller?
> >>
> >> Thank you for sharing with us all.
> >>
> >> Donn
> >> '76 FC33
> >> South Kingstown, RI
> >>
> >> From: WanderlodgeForum@yahoogroups.com 40yahoogroups.com>
> >> [mailto:WanderlodgeForum@yahoogroups.com 40yahoogroups.com>]
> >> On Behalf Of Curt Sprenger
> >> Sent: Tuesday, October 21, 2008 12:54 AM
> >> To: WanderlodgeForum
> >> Subject: [WanderlodgeForum] Trailer Wiring
> >>
> >>
> >> Before I begin...It's a good idea to sketch out on paper a new
panel as
> >> described later. Also the bus original receptacle, a new wire
loom, and a
> >> new brake controller.
> >>
> >> I've pretty much finished the bus Trailer Wiring project. Just
need to
> >> tidy
> >> up a bit. All is working from what I can tell. I need to hook
the trailer
> >> to
> >> the bus to validate the new trailer brake controller. The
controller's
> >> display shows it's not hooked up to the bus which is true.
> >>
> >> What I did...I made up an 80' loom (6 wires, allowing wires for
future). I
> >> thought I had too much wire...ended up using all but 2'. Took a
day to
> >> install the wire loom...that counts my buddies stopping to talk.
I used
> >> #14
> >> wire to make the loom. The the loom is inside 5/8" split loom...
#16 or
> >> #18
> >> wire would work, and will make it easier to install the smaller
diameter
> >> loom. The loom wires are used to trigger relays (turn them on)
and then
> >> wire
> >> the relay output # 87using larger size wire to the trailer 7 pin
> >> receptacle.
> >>
> >> I also made up a panel consisting of....6 relays, an 8 gang fuse
block,
> >> one
> >> 30 amp circuit breaker (CB), and a ground lug. I labeled the
relays L, LT,
> >> RT, BK, 12V, BU. The relay ground pins # 86 are wired to the
ground lug on
> >> the new panel.
> >>
> >> The CB provides power to the 8 gang fuse block. The other side
of the 8
> >> gang
> >> fuse block, one each, is wired to a # 30 relay pin.
> >>
> >> The original trailer receptacle wires ...I used three of the
wires.
> >> Testing
> >> them showed they are OK. The wires are the Lights (L), Left Turn
(LT),
> >> Right
> >> Turn (RT). Two other wires did not show any power. One could
have been a
> >> ground wire. The three wires were wired to trigger the L, LT, RT
(new)
> >> relay
> >> # 85 pins.
> >>
> >> Two new loom wires were used to send signals back to the # 85
relay
> >> terminals on the new panel. The signals are the brake controller
brake
> >> wire
> >> from the new brake controller, and a back-up light wire. The
back-up wire
> >> is
> >> connected to the Back-Up pole on the gen compartment 12V panel.
> >>
> >> The brake controller exciter signal is wired to the Stop Light
pole on the
> >> gen compartment 12V panel. Power for the brake controller is
taken from
> >> one
> >> of the CBs out front of the driver. And the ground is connected
out front
> >> as
> >> well.
> >>
> >> The 12V relay on the new panel...power is supplied from the
battery
> >> collection lug (isolator), to the input side of the 30 amp CB.
The CB
> >> output
> >> side supplies the feed to the # 85 pin on the 12V relay.
Complete all
> >> other
> >> wiring before doing this step.
> >>
> >> The relay # 87 wire to the trailer receptacle...All are # 12
wires except
> >> for the 12V and the Brake and they are #10. The #10 might be
overkill but
> >> that's me.
> >>
> >> The only real issue is routing the new wire loom. The rest is
easier than
> >> it
> >> sounds. I'm getting ready for the Buellton, CA rally and for now
do not
> >> have
> >> the time to make up a schematic.
> >>
> >> Our coach has dual (each side) red led tail/brake/turn/flasher
LED lights.
> >>
> >>
> >> With the brake applied along with a L or R turn, the turn side
blinks, the
> >> other side is a steady brake light.
> >>
> >> I'll try to get to hooking up the trailer tomorrow. I'll keep
you posted.
> >>
> >>
> >>
> >
> >
> >
> > --
> > Curt Sprenger
> > 1987 PT38 8V92 "MacAttack Racing"
> > Anaheim Hills, CA
> >
>
>
>
> --
> Curt Sprenger
> 1987 PT38 8V92 "MacAttack Racing"
> Anaheim Hills, CA
>

[Curt Sprenger]

Kurt,

Thanks.

Trailer Plug...This came about because I wanted all 7 pins working in the receptacle. I used the original trailer receptacle. Only 3 of the original wires could be used, the L, LT, RT. All 7 wires could be run directly to the receptacle. I chose to use fuses and relays, mostly for the new wires I was adding. By wiring all the same way it eliminates confusion in the future if I have to dig back into the whole process. And I know the circuits are protected.


New Wire Loom Routing...The loom is inside and under the coach. Inside is run through the curb side lower elec. raceway. At the rear the loom crosses to the street side behind the fresh water tank, and goes down under the coach from the water pump/control area. At the front the loom goes down under just behind the co-pilot seat belt. and on over to the generator bay. Tom Warner suggests running the wires up from the engine bay into the rear closet, and use the upper wire runway to the front of the coach. Probable the better way to run the loom, unless you've modified your coch interior like I have.

On Tue, Oct 21, 2008 at 11:15 AM, Kurt Horvath <"kguns@hughes.net"> wrote:

Curt,



Looked at photos, Nice job! I am confused why did you have to make

an entire new set up for the trailer plug? Origonal wires not

fuctioning or not up to spec? I have been reading the posts and I

don't recall how this all came about.

I am also very interested in where you ran the new wire loom thru the

coach. I have been planning on this just to get more wires from the

dash to the engine compartment, for future potential up grades.

Thanks for your time



Kurt Horvath

95 PT 42

10AC

--- In "WanderlodgeForum%40yahoogroups.com", "Curt Sprenger"

wrote:

>

> Trailer Panel photos are in the Photo Section. See Curt Sprenger

folder.

>

> On Tue, Oct 21, 2008 at 8:14 AM, Curt Sprenger

wrote:

>

> > Donn,

> >

> > No relay sockets. I prefer to wire the relays. That way I can use

the size

> > wire I want.

> >

> > The write up I posted identifies the relay wiring.

> >

> > The panel board is 1/8" aluminum.

> >

> > The new brake controller is the Tekonsha Prodigy.

> >

> >

> > On Tue, Oct 21, 2008 at 6:43 AM, Donald Watson wrote:

> >

> >> Kurt,

> >>

> >> It looks as though you have thought this out and are doing a

good job.

> >>

> >> What are you using for relay sockets and how are you wiring the

sockets?

> >>

> >> I was going to build a panel for rear and trailer lights and had

yet to

> >> make

> >> a decision. I do have a quantity of copper clad circuit board

material I

> >> could mill for automotive relay PC board sockets.

> >>

> >> I've probably missed previous posts on trailer brake

controllers, but it

> >> sounds as though you are using new technology I am not familiar

with to

> >> supply the variable DC brake voltage. What are you using for a

brake

> >> controller?

> >>

> >> Thank you for sharing with us all.

> >>

> >> Donn

> >> '76 FC33

> >> South Kingstown, RI

> >>

> >> From: "WanderlodgeForum%40yahoogroups.com"
40yahoogroups.com>

> >> [mailto:"WanderlodgeForum%40yahoogroups.com"
40yahoogroups.com>]

> >> On Behalf Of Curt Sprenger

> >> Sent: Tuesday, October 21, 2008 12:54 AM

> >> To: WanderlodgeForum

> >> Subject: [WanderlodgeForum] Trailer Wiring

> >>

> >>

> >> Before I begin...It's a good idea to sketch out on paper a new

panel as

> >> described later. Also the bus original receptacle, a new wire

loom, and a

> >> new brake controller.

> >>

> >> I've pretty much finished the bus Trailer Wiring project. Just

need to

> >> tidy

> >> up a bit. All is working from what I can tell. I need to hook

the trailer

> >> to

> >> the bus to validate the new trailer brake controller. The

controller's

> >> display shows it's not hooked up to the bus which is true.

> >>

> >> What I did...I made up an 80' loom (6 wires, allowing wires for

future). I

> >> thought I had too much wire...ended up using all but 2'. Took a

day to

> >> install the wire loom...that counts my buddies stopping to talk.

I used

> >> #14

> >> wire to make the loom. The the loom is inside 5/8" split loom...

#16 or

> >> #18

> >> wire would work, and will make it easier to install the smaller

diameter

> >> loom. The loom wires are used to trigger relays (turn them on)

and then

> >> wire

> >> the relay output # 87using larger size wire to the trailer 7 pin

> >> receptacle.

> >>

> >> I also made up a panel consisting of....6 relays, an 8 gang fuse

block,

> >> one

> >> 30 amp circuit breaker (CB), and a ground lug. I labeled the

relays L, LT,

> >> RT, BK, 12V, BU. The relay ground pins # 86 are wired to the

ground lug on

> >> the new panel.

> >>

> >> The CB provides power to the 8 gang fuse block. The other side

of the 8

> >> gang

> >> fuse block, one each, is wired to a # 30 relay pin.

> >>

> >> The original trailer receptacle wires ...I used three of the

wires.

> >> Testing

> >> them showed they are OK. The wires are the Lights (L), Left Turn

(LT),

> >> Right

> >> Turn (RT). Two other wires did not show any power. One could

have been a

> >> ground wire. The three wires were wired to trigger the L, LT, RT

(new)

> >> relay

> >> # 85 pins.

> >>

> >> Two new loom wires were used to send signals back to the # 85

relay

> >> terminals on the new panel. The signals are the brake controller

brake

> >> wire

> >> from the new brake controller, and a back-up light wire. The

back-up wire

> >> is

> >> connected to the Back-Up pole on the gen compartment 12V panel.

> >>

> >> The brake controller exciter signal is wired to the Stop Light

pole on the

> >> gen compartment 12V panel. Power for the brake controller is

taken from

> >> one

> >> of the CBs out front of the driver. And the ground is connected

out front

> >> as

> >> well.

> >>

> >> The 12V relay on the new panel...power is supplied from the

battery

> >> collection lug (isolator), to the input side of the 30 amp CB.

The CB

> >> output

> >> side supplies the feed to the # 85 pin on the 12V relay.

Complete all

> >> other

> >> wiring before doing this step.

> >>

> >> The relay # 87 wire to the trailer receptacle...All are # 12

wires except

> >> for the 12V and the Brake and they are #10. The #10 might be

overkill but

> >> that's me.

> >>

> >> The only real issue is routing the new wire loom. The rest is

easier than

> >> it

> >> sounds. I'm getting ready for the Buellton, CA rally and for now

do not

> >> have

> >> the time to make up a schematic.

> >>

> >> Our coach has dual (each side) red led tail/brake/turn/flasher

LED lights.

> >>

> >>

> >> With the brake applied along with a L or R turn, the turn side

blinks, the

> >> other side is a steady brake light.

> >>

> >> I'll try to get to hooking up the trailer tomorrow. I'll keep

you posted.

> >>

> >>

> >>

> >

> >

> >

> > --

> > Curt Sprenger

> > 1987 PT38 8V92 "MacAttack Racing"

> > Anaheim Hills, CA

> >

>

>

>

> --

> Curt Sprenger

> 1987 PT38 8V92 "MacAttack Racing"

> Anaheim Hills, CA

>

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

[Gregory OConnor]

Is BK Brake or stop light? I dont think you van transulate the
variable voltage from the Brake controller thru a relay. 3 volts in is
12 volts out.
Greg94ptca

[Curt Sprenger]

Greg,

You are absolutely correct. Use no relay for the trailer brakes. I've changed the brake wiring and all is fine, and will change my write up and republish it. The 12V relay also comes out of the mix. I'll cover that in my write up as well.

On Tue, Oct 21, 2008 at 3:29 PM, Gregory OConnor <"Gregoryoc@aol.com"> wrote:

Is BK Brake or stop light? I dont think you van transulate the

variable voltage from the Brake controller thru a relay. 3 volts in is

12 volts out.

Greg94ptca

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

[Curt Sprenger]

Revised Trailer Receptacle wiring write up.

Contributed by Curt Sprenger on 10.20.2008

Revision One, revised
10.21.2008:

Revision One takes out the BK relay and the 12V relay. I
hooked up the trailer to the bus this afternoon. The discovery is the relay (BK
relay) comes out of the mixture. Greg O'Connor is correct...the trailer brake controller
will not function correctly with a relay. The trailer brake controller wire should
be wired only through the fuse block, allowing variable voltage to the trailer
brakes. The new Tekonsha Prodigy brake controller is working fine after this
change.

Wire the 12V the same...no relay and through the fuse block. CRS (and
DUMB too) on my part.

The following doc. Is revised to reflect the above
changes.

End of Revision
One.

Before I begin...It's a good idea to sketch out on paper a
new panel as described later, the bus trailer receptacle, a new wire loom, and
a new brake controller.



I've pretty much finished the bus Trailer Wiring project. Just need to tidy up
a bit. All is working from what I can tell. I need to hook the trailer to the
bus to validate the new trailer brake controller. The controller's display
shows it's not hooked up to the bus which is true.



What I did...An 80' loom was made (6 wires, allowing for future wiring
needs…overkill, but easier to do now than again later). I thought 80' that was too
much wire...ended up using all but 2'. It took a day to install the wire
loom...that counts my buddies stopping to talk. The loom is made using #14 wire.
The loom is inside 5/8" split loom. #16 or #18 wire will work, and will
make it easier to install the smaller diameter loom. The loom wires are used to
trigger the relay # 85 pins (turn them on), and then wire the relay output #
87using larger size wire to the trailer 7 pin receptacle.



I also made up a panel consisting of....6 relays, an 8 gang fuse block, one 30
amp circuit breaker (CB), and a ground lug. I labeled the relays L, LT, RT, SP,
SP, BU. The SP means Spare Relay. The relay ground pins # 86 are wired to the
ground lug on the new panel.

The CB is wired and provides power to the 8 gang fuse block. The other side of
the 8 gang fuse block, one each, is wired to a # 30 relay pin.



The original trailer receptacle wires ...3 wires were used. Testing them showed
they are OK. The wires are the Lights (L), Left Turn (LT), Right Turn (RT). Two
other wires did not show any power. One could have been a ground wire. The
three wires were wired to trigger the L, LT, RT (new) relay # 85 pins.



Two new loom wires were used to send power to the rear of the coach. The wires are
the brake controller brake wire from the new brake controller, and a back-up
wire. The brake controller wire is wired to the #7 position of the fuse block.
The trailer receptacle wire is wired out the fused side of #7. The back-up wire
is connected to the Back-Up pole on the gen compartment 12V panel, and at the
rear to #85 of the BU relay.



The brake controller exciter signal is wired to the Stop Light pole on the gen
compartment 12V panel. Power for the brake controller is taken from a CB out
front of the driver. And the ground is connected out front as well.



Power (12V) to the panel is supplied from the battery collection lug (isolator)
to the input side of the 30 amp CB. The CB output (AUX) side supplies the power
(12v) feeds to the #1, 2, 3, 4, 5, 6, and #8 position on the fuse block. The
fused side of # 8 is wired to the trailer receptacle 12V pin. Complete
all other wiring before doing this step.




The relay # 87 wires to the trailer receptacle...The 4 are # 12 wire. The BK and 12V from the fuse
block to the trailer receptacle are # 10, but that is what I originally used
(before testing/changing), #12 would be fine.



The only real issue is routing the new wire loom. The rest is easier than it
sounds. I'm getting ready for the Buellton, CA rally and for now do not
have the time to make up a schematic.



Our coach has dual (each side) red led tail/brake/turn/flasher LED lights.



With the brake applied along with an L or R turn, the turn side blinks, the
other side is a steady brake light.

On Tue, Oct 21, 2008 at 4:42 PM, Curt Sprenger <"curtsprenger@gmail.com"> wrote:

Greg,

You are absolutely correct. Use no relay for the trailer brakes. I've changed the brake wiring and all is fine, and will change my write up and republish it. The 12V relay also comes out of the mix. I'll cover that in my write up as well.

On Tue, Oct 21, 2008 at 3:29 PM, Gregory OConnor <"Gregoryoc@aol.com"> wrote:

Is BK Brake or stop light? I dont think you van transulate the

variable voltage from the Brake controller thru a relay. 3 volts in is

12 volts out.

Greg94ptca

--

Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA