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12-19-2017, 09:56 AM
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#1
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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TPMS Repeater wiring question
I have a repeater for my TST 507 TPMS system that I received in July this year. I hardwired it to the battery so that it would be operational all the time. The last time I towed the camper, 2 months ago, it was still working perfectly. This past weekend we took a trip and the repeater did not work.
I have another one coming but I would like to know how to wire it up so the repeater, mounted in the basement of my 5er, will receive its power from my tow vehicle through the 7 pin plug. This way it will be powered up only when the camper is connected to the truck.
How can I do this?
Thanks in advance for the information
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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12-19-2017, 10:32 AM
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#2
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,074
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Quote:
Originally Posted by DouglasReid
I have a repeater for my TST 507 TPMS system that I received in July this year. I hardwired it to the battery so that it would be operational all the time. The last time I towed the camper, 2 months ago, it was still working perfectly. This past weekend we took a trip and the repeater did not work.
I have another one coming but I would like to know how to wire it up so the repeater, mounted in the basement of my 5er, will receive its power from my tow vehicle through the 7 pin plug. This way it will be powered up only when the camper is connected to the truck.
How can I do this?
Thanks in advance for the information
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Simply wire it up to anything where 12v is convenient and add a on/off switch to the line. Turn it on when you need it, off when you don't.
Remember, the 7 pin plug's power circuit (on the 5th wheel side) has power even when disconnected from the truck because of the trailer battery(ies) providing power to the trailer brakes in an emergency. Unless you wire a switch in like I mentioned or wire it to the battery disconnect switch, the repeater is going to be powered up all the time anyway.
You could hook it to a running lamp circuit which would not have power when disconnected from the truck, but the lights would need to be on going down the road for the repeater to work.
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2017 Ford F-Series SCREW 4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=86
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12-19-2017, 10:44 AM
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#3
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Georgia Rally Coordinator
Join Date: Jun 2015
Location: GA
Posts: 24,355
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I just wired to battery with on off switch. Easiest and fastest way to do. Later RJD
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2020 Shasta Phoenix SPF 27RKSS (sold)
2018 Dodge Ram 2500 6.4 3:73 gearing. Traded 2015 Chevy 2500 6.0, 4:10
Traded 2015 30WRLIKS V-Lite
Days camped 2019 62
Days camped 2020 49 days camped 2021-74 2022-40 days 2023 5 days
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12-19-2017, 12:07 PM
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#4
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by aceinspp
I just wired to battery with on off switch. Easiest and fastest way to do. Later RJD
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That is the same conclusion I came to. I think I will mount the switch right next to the switch for my landing gear so I don't have to open the basement door to operate it.
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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12-19-2017, 12:14 PM
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#5
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Senior Member
Join Date: Jun 2016
Posts: 5,037
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To answer the OP's question...
I think you will have to follow the wire from the trailer connector. There should be a junction box on it. Tie the repeater into either the running lights or charging line. Running lights will work if you always have them on, which would be needed if you have one of the backup cameras on that circuit.
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Al
I am starting to think, that I will never be old enough--------to know better.
Tolerance will reach such a level that intelligent people will be banned from thinking so as not to offend the imbeciles. Fyodor Mikhailovich Dostoevsky, Russian Novelist
S.E. Mich. Flagstaff 26FKWS / 2022 F-150 3.5 EcoBoost SCrew Propride
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12-19-2017, 12:52 PM
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#6
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Senior Member
Join Date: Jan 2017
Location: KS
Posts: 2,369
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SailorSam is right but check the wiring colors as mine were different. I tapped into the trailer wiring junction box to get it connected. His is red and mine was black.
I left the repeater inside the battery box to keep it dry.
bottom left in diagram is mine. I had to test it but truck required that it was connected because my 2016 f150 does not power the aux until it sees resistance in the trailer wiring. Makes figuring it out/confirming a pain.
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12-19-2017, 01:34 PM
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#7
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7 Year Class A RV'er
Join Date: Oct 2014
Location: Winter Park, FL
Posts: 1,068
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Just hook it to a taillight or running light, then drive with your lights on. Simple solution and improved safety.
__________________
2015 Legacy SR340 360RB
2014 Jeep Wrangler Unlimited Toad
Gigi, Poppy and Sadie Lady...On the road, but not full time!
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12-19-2017, 02:03 PM
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#8
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Site Team
Join Date: Oct 2014
Posts: 15,266
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I have a battery tender pig tail connected to the battery, When I disconnect the battery tender to travel, I connect the repeater to that connector. Just reverse procedure when I get home. If you left the repeater connected for two months, your battery may have been low.
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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12-19-2017, 02:27 PM
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#9
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Member
Join Date: Nov 2015
Location: Ridgefield, CT
Posts: 96
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I just connected mine to the controlled side of the 5er battery circuit. That way, when I'm hooked up or the battery power in the trailer is on, the TPMS is on. When the battery power is off, the TPMS is off, when the trailer is hooked up, the TPMS is powered from the TV.
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12-19-2017, 07:15 PM
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#10
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Senior Member
Join Date: Jul 2017
Location: North of Seattle, WA
Posts: 17,285
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I tow my trailer with at least the "Parking Lights" on as that's how I power my rear camera (from the clearance lights).
If you only want the repeater to work when towing, just run the power lead to the nearest clearance light positive wire and just turn on the parking lights as you tow.
BTW, the extra lighting on the trailer can help during rain or dull days. Since my tow vehicle was built before daytime running lights became all the rage I will often turn on my headlights during the day if the traffic is heavy and always on two lane roads.
Anyway, this is a super simple way to get power only when you want it.
__________________
"A wise man can change his mind. A fool never will." (Japanese Proverb)
"You only grow old when you run out of new things to do"
2018 Flagstaff Micro Lite 25BDS
2023 f-150 SCREW XLT 3.5 Ecoboost (The result of a $68,000 oil change )
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12-19-2017, 07:24 PM
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#11
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Junior Member
Join Date: Feb 2016
Posts: 29
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At the expense of sounding stupid what’s a repeater ? Also if you want to get lazy they make a remote wireless switch which is very cheap. I use one to turn my rear camera on on my 5th wheel. Do you guys have a decoder ring? I learn a lot from this forum but sometimes don’t know what the heck your talking about.
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12-19-2017, 07:29 PM
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#12
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Senior Member
Join Date: Jan 2017
Location: KS
Posts: 2,369
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Quote:
Originally Posted by popeye305
At the expense of sounding stupid what’s a repeater ? Also if you want to get lazy they make a remote wireless switch which is very cheap.
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The TPMS broadcasts on a busy frequency. Remote thermometers and atomic clocks use the same frequency. You use the repeater to get a better signal. I am right on the edge where they are recognized but an hour later they drop off. The repeater solves this problem to rebroadcast the signal from the tire sensors. This way I am not looking at a false signal or no data at all. Hope that helps.
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12-25-2017, 10:18 PM
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#13
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Senior Member
Join Date: Mar 2013
Location: Canada
Posts: 516
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TPMS Repeater wiring question
I wired my repeater to a lighted on off switch that is on my battery box cover. The repeater is inside the box. I just flip the switch on when I hook up and off when I unhook. Works for me.
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01-01-2018, 03:26 PM
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#14
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Truck System Technologies Rep
Join Date: Nov 2013
Posts: 245
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TST TPMS
Thanks for all the great suggestions. If anyone has any other questions feel free to contact me at 210-420-0132 I am always available.
Thanks,
Mike Benson
TST TPMS
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