disabling DCM / telematics in 2025 Taco

[shuo]

Is it also necessary to call via SOS button and opt-out from toyota connected services?

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[pchi]

Wouldn't stuffing some RFID cloth into the shark fin cover block all signals?
GPS and radio/music can be through your phone. Or if you're old like me, music through thumb drive.

 

[ryd34lyf3]

Excellent write up by the original poster! I bought the harness from Auto harness house and I want to know is that harness garbage or not? Before I tear into my dash. Thanks for those keeping this thread on track.

 

[maxx075]

Excellent write up by the original poster! I bought the harness from Auto harness house and I want to know is that harness garbage or not? Before I tear into my dash. Thanks for those keeping this thread on track.

Garbage? Like the AutoHarnessHouse harness? No, it works as advertised. It removes the power to the DCM so that you're not transmitting data while tricking the ECU into thinking you're out of cell range and not reporting any CELs.

You also don't have to tear into the dash. You remove the panel where the wireles charger/USB chargers are and remove the connectors from the DCM.

 

[osovolante]

I'm new here but I'm going through this as well. This is the simplest explanation that I've found.

View attachment 51134 View attachment 51134

 

[Dayen]

Did you get around to testing with GPS still plugged in? That would be the middle wire correct? I appreciate you guys sharing this information. Thanks

GPS plugged in was what I needed to make Android Auto work again, that's been good. I think I need to buy and install the real harness to delete telematics, I'm skeptical that the grounded out signal wires are fully cutting it with how I've gotten some "your truck needs service soon" phone calls and emails. I also am due for my 25k mile service soon, I should go to the dealer and tell them explicitly that I want to opt out of all data collection.

I have unplugged and ran the cap system here but everything is still the same. The truck still shows how fast you're going over the speed limit as well as the stop signs etc. At this [oint if the only recourse is to take the fuse out. Any help would be swell

That's done off of the vision system that controls the brake assist and some of the adaptive cruise control stuff. Nothing to do with the telematics

 

[NoSlushbox4Me]

I did this on my MT truck, using the Amazon parts and leaving the middle connector plugged in. So far I notice no negative effects. With the connector housing of the Amazon cable removed, I have some doubts that the cables will stay connected to the unit so I'm looking into a replacement housing to make it similar size to the connector that can be slipped over the harness end and zip tied to the middle GPS harness connector. Maybe a piece of flexible tubing would work well.

 

[JFFRT24]

Much appreciate this information. Since I bought this truck in 2024 my insurance has gone up every year. Really got mad once I found out what was causing it. Going to do this.

 

[JFFRT24]

I covered my camera and that other unit behind the dash with some vehicle wrap. Pulled the fuse and.... The truck went nuts with Warnings and lights on the dash. Considering what these POS INSURANCE COMPANIES RAISED my Policy; I can live with the Chrismas tree dash.

 

[JFFRT24]

Excellent write up by the original poster! I bought the harness from Auto harness house and I want to know is that harness garbage or not? Before I tear into my dash. Thanks for those keeping this thread on track.

Only one poster has mentioned the AHH bypass didn't work for him. I couldn't see if he updated his post yet.

 

[maxx075]

I covered my camera and that other unit behind the dash with some vehicle wrap. Pulled the fuse and.... The truck went nuts with Warnings and lights on the dash. Considering what these POS INSURANCE COMPANIES RAISED my Policy; I can live with the Chrismas tree dash.

Pulling the fuse kills the front (right? maybe left?) speaker and the microphone capability. Which is why the AHH bypass is recommended.

 

[JFFRT24]

Pulling the fuse kills the front (right? maybe left?) speaker and the microphone capability. Which is why the AHH bypass is recommended.

YES. I also ordered it but, it hasn't arrived. Going to go "all methods" used on this!

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