....

.

 

It's still under warranty. Take it to the dealership and let it be their problem, not yours.

 

My wild guess is that this is an issue with the head unit, not the ECU. It's possibly not detecting the radio HW or antenna due to a cable being disconnected.

 

Replaced the main body ECU on a new truck??

 

Never mind. I saw your other posts about your modification to add automatic headlights.

 

Given the headlight modification, they might not consider it their problem.

 

Did I miss something? Where did the OP mention a head light mod?

Even if he did, the two are not correlated.

 

Oh, they probably are correlated. Gone are the days where your lights are controlled simply from the stalk on the column.

 

I disagree. If it was, then it would cause the radio to short out or not work at all. It wouldn't wipe out ONE app on the head unit.

 

I vote for correlated. That problem can be caused by a cable that was disconnected (intentionally or not) to do the other work and perhaps now isn't connected well. Either the satellite radio HW isn't getting power, or it doesn't have good connection to the head unit.

 

I couldn't figure out why a body ECU would be replaced on a 2024 4R...then I remembered a thread where the OP wanted auto headlights, and this was a byproduct of that modification:

https://www.4runners.com/threads/auto-headlights-on-2024-sr5-premium.40813/

He was asking the same XM question on that thread, but I guess he decided to come at it from another angle...

 

I want to agree with you, it doesn’t seem right. However, in the first post of the other thread, the op states they have the same problem as the person they followed with xm.

 

Yeah, I read the link that @glwood54 posted, and I read the link inside that link. I'm not sure how the two parts talk, but they do. Turns out, I'm wrong. This is a first! I'm never wrong on Sunday's.

 

It’s Monday in a different time zone.

 

Yeah, we'll go with that. I'm actually in Tokyo right now; where it's almost 2am on Monday.

 

I understand why you would think that. I still have to remember that there are over 90 "computers" in a 4Runner (IIRC). A little tough to wrap my head around. And so many of them do talk to each other. Talk about making something complicated!

You just forgot. And it is Monday in Tokyo.

 

With the help of the OP, I completed the mod. However, I am in the same boat as the OP, no XM Sirius radio.

 

I'm sure the modules talk to each other for power, when sensors are working to mute the radio, etc. I would check that the pin outs are all the same, for that. But the totally weird part is that the app was totally deleted from the radio OS and not just inoperable.

Does the sirius show up when switching through the source button? That would tell you if it was deleted or not.

 

Which brings up the question: does a software update need to be accomplished?

 

Great question. And putting back in the old module everything returns?

 

Might be worth doing to prove one way or another.

 

So that tells you that it's the interaction with the new module. Maybe it's not telling the antenna to power on our something. Who knows.

https://www.4runners.com/threads/toyota-multimedia-system-updates.34431/

https://www.toyota.com/firmware-updates

 

Yeah, it's really unlikely that it was deleted from the head unit. More like the head unit doesn't display the source because the Sirius Radio isn't coming up clean (or at all) on power-up.

 

Really leaning towards ^^^^

Like a lot of radio OSs won't let the usb be chosen if there's no usb plugged in. Same concept but on internal level.

Check the pinning on the new ecm.

 

Can also get a meter on your sirius antenna connection at the radio and see if voltage is coming through

 

Maybe the new head

The XM antenna wire is the plug with the single wire in the center. It looks similar to the shark fin connector you posted earlier....

My guess is one of the 2 in pink circles

 

The looks of it. The sirius antenna is the white antenna on the lower right of the picture. It's usually the "D" looking plug. So by what you said the new module is not turning on the sirius module. The power looks like it'll be in that black plug somewhere. Maybe a wiring diag exists somewhere or something someone here knows. Cuz my 2018 is different and sirius is built in and the nav is separate. Later models is the other way around.

 

Ok… somebody is going to short out something very expensive if you are playing around and probing circuits and “guessing” without a diagram and with the power connected.

The modules underneath the 2014-19 Entune systems are the XM receivers. On the 2020-24MY head units that second module is the navigation ECU. Both are not cheap to replace if you short them.

The XM connector is the single shielded gray cable with the black plastic connector. White is the GPS antenna. Everything else is power, speaker, video, etc. If it’s a larger grey wire it is shielded. Any connector with color (I.e not white) is shielded signal or data. The blue connector you were probing is high speed USB data from the telematics module to the nav ecu.

Disconnect the black connector and reseat it to ensure it is fully plugged in.

if you made an electrical modification and something changed, undo what was done and see if it fixes the problem.

 

The main body ECU for the 2020-24MY is slightly different from the 2010-19MY, so take what I say with a grain of salt because I have yet to do full deep dive on it. From what I have gleaned, the 2020-24MY main body ECU tells certain systems like the radar cruise and lane departure camera what type of vehicle they are connected to, end destination market, etc. It is also a gateway ECU for other components. It is possible that something is not being recognized after swapping your ECU out even though physically nothing has changed. I would try and get a copy of Tech stream and see if you can go in and initialize it under a utility setting, or perform an ECU-ID sync. This can't be done in the 2020MY+ without a software interface unfortunately.

If memory serves you have already swapped the original one back in and everything went back to normal, correct? If so I would say it is not "seeing" a specific input. Re-initialization via tech stream may solve it.

 

Could always just use app on phone and use CarPlay or stream via bt or usb. Just a thought until figure it out.