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3rd & 2nd Gen Re-purposing Towing Break circuit and "Towed" Battery Charger circuit

Discussion in 'Lighting' started by caribe makaira, Feb 2, 2020.

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Feb 2, 2020 at 10:20 PM

#1

#1
caribe makaira [OP] Well-Known Member

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For those without a need for a towing break module and battery "charging" the towed Camper.
OEM circuits:

Modified:

Terminals needed:

The rest is up for grabs, there are so many ways to tap the T12.
I suggest a $35.00 T-harness, purchase, de-pin and use the modified towing break and battery charger circuits.

Or

EB4 is the connector with wires of the Battery Charger and the Towing Break Output (power) from the relays to the rear Towing Connector (T12)
For those that do not need a towing brake module, a Y harness can be assembled to provide power to a fuse block & relay module in the engine bay area.

FOR 2nd Gen's:

Terminals are same:

Bumper connector info:

Keep the fuses same. You'll have 2 sources of 30 Amps each for 60 amps. One hot (jumper on connector T7's mate pins #1 & #2 (10 awg) and the other IGN. (Battery Charger Circuit) or both IGN on/off.

Last edited: Feb 7, 2020

caribe makaira, Feb 2, 2020

#1

hirod likes this.

Feb 3, 2020 at 7:52 AM

#2

#2
paranoid56 Well-Known Member

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but why? what are you re-purposing it for?

paranoid56, Feb 3, 2020

#2

Feb 3, 2020 at 8:15 AM

#3

#3
caribe makaira [OP] Well-Known Member

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If you have to ask..then you don't need to.
Have you seen electrical panel systems in the bed inside the cubbies? Have you added rear lights running new wire from the battery all the way to rear? Just name a few.
Do you use a towing brake module?
Do you charge a towed mobile home's battery?

Do you have a 3rd Gen?

caribe makaira, Feb 3, 2020

#3

Feb 3, 2020 at 8:48 AM

#4

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paranoid56 Well-Known Member

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caribe makaira[OP] said: ↑

If you have to ask..then you don't need to.
Have you seen electrical panel systems in the bed inside the cubbies? Have you added rear lights running new wire from the battery all the way to rear? Just name a few.
Do you use a towing brake module?
Do you charge a towed mobile home's battery?

Do you have a 3rd Gen?
Click to expand...

yes,
yes
yes
god not lol

but i also wouldn't use this circuit for much, most times when adding a panel in the rear i would want more power and run at least a 4ga wire (my last truck i ran 00) along with a second battery.

paranoid56, Feb 3, 2020

#4

Feb 3, 2020 at 10:30 AM

#5

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caribe makaira [OP] Well-Known Member

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Well, in your stated situation, if you had a 3rd Gen and needed MORE power, you'd keep the 40 amp fuses on each circuit, thus having 2 sources for 80 amps...more than enough for anything at the rear. Apart from a rear winch...

caribe makaira, Feb 3, 2020

#5

Feb 3, 2020 at 4:34 PM

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fake4x4 Well-Known Member

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Cool stuff

A nice usb charger in the bed would be great

fake4x4, Feb 3, 2020

#6

Feb 3, 2020 at 8:32 PM

#7

#7
caribe makaira [OP] Well-Known Member

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fake4x4 said: ↑

A nice usb charger in the bed would be great
Click to expand...

Last edited: Feb 3, 2020

caribe makaira, Feb 3, 2020

#7

Feb 7, 2020 at 12:10 PM

#8

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caribe makaira [OP] Well-Known Member

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Another harness...

Assembling a T or Y harness for the little to no use Battery Charger Circuit.

Using the Battery Charger and the Towing Brake circuits. If a high amp relay with a switch, is placed between tap and fuse block, OEM circuit can return to use.

Last edited: Jul 29, 2022

caribe makaira, Feb 7, 2020

#8

Feb 7, 2020 at 2:09 PM

#9

#9
hirod Well-Known Member

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thanks. gives me idea for relay for additional reverse lights.

hirod, Feb 7, 2020

#9

Feb 7, 2020 at 2:13 PM

#10

#10
caribe makaira [OP] Well-Known Member

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hirod said: ↑

thanks. gives me idea for relay for additional reverse lights.
Click to expand...

Cool
Have you read this:
https://www.tacomaworld.com/threads/3rd-gen-adding-back-up-leds-to-rear-bumper.606715/

caribe makaira, Feb 7, 2020

#10

Aug 14, 2020 at 6:33 AM

#11

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oostroma (Boomer)

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TRD emblems, tinted windows, OEM running boards, AVS vent shades, RMAS upgrade, LED lights in front and rear, interior LED lighting upgrade, LED lighting in bed, touch control dash mount for LED lighting, auxillary 12v and USB jacks in bed, replace all speakers with Infinity, custom mod with Bose tweeters, TRD Pro illumination mod...

Stumbled across this thread today. This is my add-on power distribution panel in the LS cubby of the Taco.

oostroma, Aug 14, 2020

#11

Aug 27, 2020 at 6:44 PM

#12

#12
caribe makaira [OP] Well-Known Member

Joined:

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Messages:

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Gender:

Male

Caribbean, Puerto Rico

Vehicle:

05 PreRunner TRD Offroad AutoTrans

Hood Struts, My version Fogs always ON, Map & Overhead Light Mod,

Using an un-terminated 5th Wheel T harness for a no cut to vehicle harness. Adding the panel is a "snap". The Tail Mod is to have the full C illuminated. Adding a Reverse lamp is also simplified...
3rd Gen Full C rear illumination_revisited

Last edited: Aug 27, 2020

caribe makaira, Aug 27, 2020

#12

Feb 10, 2022 at 10:21 PM

#13

#13
baldbeardedtaco Well-Known Member

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oostroma said: ↑

Stumbled across this thread today. This is my add-on power distribution panel in the LS cubby of the Taco.

Click to expand...

Have a thread to read on your setup?

baldbeardedtaco, Feb 10, 2022

#13

Feb 10, 2022 at 10:24 PM

#14

#14
oostroma (Boomer)

Joined:

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Vehicle:

2017 TRD OR access cab- BBP colour

TRD emblems, tinted windows, OEM running boards, AVS vent shades, RMAS upgrade, LED lights in front and rear, interior LED lighting upgrade, LED lighting in bed, touch control dash mount for LED lighting, auxillary 12v and USB jacks in bed, replace all speakers with Infinity, custom mod with Bose tweeters, TRD Pro illumination mod...

baldbeardedtaco said: ↑

Have a thread to read on your setup?
Click to expand...

No sorry, I dont. If you want to PM me I can give you a list of parts and we can discuss in detail.

oostroma, Feb 10, 2022

#14

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