Wade Swancey Posted June 29, 2017 Share Posted June 29, 2017 I have a 2016 TC and want to install a Bumper in the rear trailer hitch receiver. The problem is that it sets off the rear sensor alarm tone. Does anyone know of a way to turn off the interior tone from the rear sensors? I do not need a trailer harness since I am not interested in a trailer. Is there another way to shut it down or do I have to remove the alarm unit to silence it while in reverse? Thanks. Quote Link to comment Share on other sites More sharing options...
Boomerweps Posted June 29, 2017 Share Posted June 29, 2017 Nice step bumper Guard. IIRC, the owner's manual lists a rear sensor disabling procedure but it also mentions it isn't a permanent disabling. The section is for when backing up while towing or using a hitch hauler. Wade Swancey 1 Quote Link to comment Share on other sites More sharing options...
DonShockley Posted June 29, 2017 Share Posted June 29, 2017 There is a connector for the sensors behind the passenger side rear wheel that you could try disconnecting. That may work to silence the alarm but may give a failure warning. Just guessing here, not an expert. If you do disconnect it, make sure to protect the ends against moisture since you won't have the water seal anymore. Here's some photos of my 2015 showing the connector. The live end of the connector could probably be moved back to the interior of the vehicle through that grommet you see the flat trailer wire coming out of in the photo. You could also remove the sensors from the bumper entirely to protect them, but that would leave holes. Or you cold do a halfway solution and disconnect the wiring only at the individual sensors being triggered if it's just the hitch step in the middle triggering the center sensors and not the entire bumper length triggering them all. You can see the sensor connectors and how they are just held in by plastic tabs in the photos. Wade Swancey 1 Quote Link to comment Share on other sites More sharing options...
DonShockley Posted June 29, 2017 Share Posted June 29, 2017 A simple but more permanent and drastic solution, AND NOT ONE I WOULD RECOMMEND, would be to cut and cap the power wire to the sensors. I only mention it because I know some people are more willing to go the quick, simple, but harder to repair route than I am comfortable doing. Here's the wiring diagram for my 2015. The power wire for my 2015 is the Blue-White one on pin 5 of the connector. Wade Swancey 1 Quote Link to comment Share on other sites More sharing options...
Don Ridley Posted June 29, 2017 Share Posted June 29, 2017 Maybe there is another solution. Your factory trailer wiring includes a trailer module (computer). I think the sensors are deactivated when a trailer is connected. Maybe a simple plug-in tester like this https://www.amazon.com/gp/aw/d/B0049MX8AY?psc=1 Will be enough of a load for the module to sense a trailer is connected. I will review the service manual to see what it says about the sensors. Wade Swancey 1 Quote Link to comment Share on other sites More sharing options...
Don Ridley Posted June 29, 2017 Share Posted June 29, 2017 Yes, the blind spot monitoring system is disabled by the trailer module when a trailer is attached. But, you need fully functional trailer lights or you will get bulb failure messages when you turn or brake. Wade Swancey 1 Quote Link to comment Share on other sites More sharing options...
Wade Swancey Posted June 30, 2017 Author Share Posted June 30, 2017 Thanks for the suggestions fellows. Sounds like I have a few things to check out, if it ever stops raining down here. I will let you know what I find out when I start abusing my hands. Wade Quote Link to comment Share on other sites More sharing options...
Don Ridley Posted March 24, 2018 Share Posted March 24, 2018 I did some testing and if you connect a trailer harness, and you have the tow package, the TC will expect all the trailer lights to work. I found the turn signals flashed rapidly and an error message displayed when I did not have turn signal bulbs installed. If you want to permanently simulate a turn signal load you need at least 11watts (5w did not work). A 10 ohm, 25w resistor will work well. So for a permanently installed rack or bumper, you could wire the resistors to a trailer plug and keep it plugged in. You probably will have to add another resistor to simulate the tail/running lights so the trailer module thinks a trailer is attached. This should disable the backup alarms. I know this is complicated, but it will work. Quote Link to comment Share on other sites More sharing options...
Dacflyer Posted February 6, 2020 Share Posted February 6, 2020 does anyone know if this module is a stand alone unit or does it integrate with the cars computer? I'm asking because i am thinking to add more sensors for side of vehicle warning ( if something is too close to the sides ) These would also be handy for a front bumper as well when parking in tight spaces. Quote Link to comment Share on other sites More sharing options...
G B L Posted February 6, 2020 Share Posted February 6, 2020 The module definitely is hooked to the computer. Interesting idea any way. Quote Link to comment Share on other sites More sharing options...
rodent 66 Posted February 15, 2021 Share Posted February 15, 2021 I hadn’t tried the simple 4-pin tester like Mr. Ridley posted in my 2020 TC yet, but on my sons 2018 when you plug this type tester in it not only disables the sensors, it also blocks the engine off feature at stops. Quote Link to comment Share on other sites More sharing options...
G B L Posted February 15, 2021 Share Posted February 15, 2021 13 hours ago, rodent 66 said: 4-pin tester like Mr. Ridley posted Very good thanks for posting. Quote Link to comment Share on other sites More sharing options...
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