"Jcarr" (jcarr)
12/02/2016 at 15:58 • Filed to: None
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"Jcarr" (jcarr)
12/02/2016 at 15:58 • Filed to: None | 0
| 12 |
Facebook friend posted this and tagged me since she knows I’m into cars. What say you? Vehicle in question is a 2011 Tundra.
Does anyone know anything about vehicle wiring? I need to know if connecting something to the ‘brake switch’ wire directly at the top of the brake pedal is the same as connecting it to the ‘foot brake’ wire in the trailer harness. And I need to know soon!
More context:
No, I’m installing an automatic starter in XXXX’s truck for christmas and it works great....except that I need to connect it to the brake pedal so that he can disarm it when he gets in the truck to actually drive it. The brake pedal is kinda the ‘stop’ switch.
G_Body_Man: Sponsored by the number 3
> Jcarr
12/02/2016 at 16:02 |
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It depends on which wire. IIRC, Gen 2 Tundras use a pressure actuated switch, so it would only really work if the wire was connected to the non-hot side of the switch. If done so, it should function as if it were connected to the foot brake wire in the trailer harness. It would be a lot easier to run a wire off of the switched power wire for the brakes lights at the taillight housing, though.
RamblinRover Luxury-Yacht
> Jcarr
12/02/2016 at 16:03 |
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Depends. I’m assuming this is for a trailer brake controller. The “foot brake” wire in the trailer harness, as its referred to here, has to be able to support the brake lights on the trailer, whereas the brake switch wire *at the switch* is very likely just a control circuit. If the control circuit is set up via relays/etc. then a tiny extra load to switch the brake controller is probably okay. If it’s going into a lighting module as is very possible, it *might* not be. A lot depends on how big the load to switch the controller is.
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Jcarr
> G_Body_Man: Sponsored by the number 3
12/02/2016 at 16:04 |
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See me edit above for some more context.
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Jcarr
> RamblinRover Luxury-Yacht
12/02/2016 at 16:06 |
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It’s actually for an automatic start system. Apparently when connected properly, hitting the brake in the truck will disarm the automatic start so he can drive away.
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G_Body_Man: Sponsored by the number 3
> Jcarr
12/02/2016 at 16:12 |
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Why not wire the remote starter kill switch to the door locks so that the remote starter can only be used when the vehicle is locked?
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RamblinRover Luxury-Yacht
> Jcarr
12/02/2016 at 16:12 |
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That makes it even more likely that the signal requirement on that leg is minimal. Probably within tolerance of the contact resistance in the brake switch.
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RamblinRover Luxury-Yacht
> Jcarr
12/02/2016 at 16:14 |
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Basically, connecting it in place of the “to ground” side of the pedal switch *should* be fine.
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Jcarr
> G_Body_Man: Sponsored by the number 3
12/02/2016 at 16:16 |
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I don’t know. I assume she’s following what the directions say.
MontegoMan562 is a Capri RS Owner
> Jcarr
12/02/2016 at 16:20 |
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I can try and check my car over the weekend (probably can’t tonight sorry) but the point is that you have to have the key turned to ON and then tap the brake. They use the brake because you need to push on the pedal anyhow to shift out of park so they know 100% someone is behind the wheel and the car should be allowed to move. The brake is the correct location. I just don’t know how it’s wired mine was installed as part of the deal to buy it.
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Jcarr
> MontegoMan562 is a Capri RS Owner
12/02/2016 at 16:23 |
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She knows which wire in the truck’s trailer wiring harness is the brake wire. Would it work the same to tap into that one?
vicali
> Jcarr
12/02/2016 at 16:31 |
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Check with TundraTalk.. I’m going to say the brake wire at the top of the brake pedal is where you want it.
Our Tacoma has a Compustar - if you start it remote and then press the brake pedal it shuts off. You have to turn the car ‘on’ with the key and then it stays on.
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MontegoMan562 is a Capri RS Owner
> Jcarr
12/02/2016 at 16:42 |
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I honestly don’t know but it sounds like she’d be in the right neighborhood.