Keep Blu Logic AND new BT HU?

That sounds like a stretch. The way BluLogic is inserted into the stock wiring with a special harness would take some cleverness to make it work with another HU.

It's really cute how Toyota hangs the Blu Logic box from 4 zip ties instead of mounting it like they were serious about it.

It would be easy to try, just plug thing into the factory harness. Connecting to your new HU from the Blu Logic harness would be the same as connecting from the factory Prius harness. I think that would be low risk, but it's not my car so I didn't think very heavily about it.

 

I will add - I just did this 2 weeks back - no one has details on the Blulogic

*don't* pull the old Blulogic out when you install - the wiring is wonky, and if you pull out the Blu, you will get no sound from your new install...

When you pull out your HU, you'll see the Blu box in the whole (down low - wrapped in gray foam) - it has like 4 cables plugged in - I unplugged it, pulled it out, and got no sound from my new HU. Plugged it back in, and everything worked fine...

 

The BluLogic that I removed from my Gen 3 Model II and is now sitting in a box in my den says that isn't so. The BL is an add on at the port or dealer that is plugged into the stock system and can just as easily be unplugged. The harnesses just pass the signals and power through the BluLogic.

 

Hrmmm - do you also have JBL? My BL was on a late build 2011 - and the dealer said it came with BL (maybe factory) - at any rate, it is *highly* integrated in the wiring harnesses - and gets like 4-5 plugs into the box.

For my install, I could not remove the thing (due to no sound) - I was guessing it may have something with either a mute wire (or speaker switch? or? Didn't want to hassle, so I left it in - would have rather sold it )

 

I don't doubt what you experienced. I wasn't even aware that Blu Tooth was an external system for the JBL. But why would Toyota do that when it's built into so many systems?

I had the non-JBL in a 2010 model II. Did you actually see the "Blu Logic" label on the electronics box?

The Blu Logic I was referring to was a port or dealer added option (it still showed up on the door sticker on my car as an option). It was too sloppily installed to be a factory job.

There was a big harness on mine. Each plug that would normally plug into the radio was plugged into the Blu Logic and the Blu Logic harness had a corresponding plug that plugged into the radio. The harness also had a lead with microphone attached, and a lead with the control button attached.

 

Mine looked to be a professional job - with a myriad of cabling (but you never know) - it's funny how much we know about this car - yet how little we know about this BL thing... Since it seems to be becoming a standard feature - maybe there will be more momentum to decode its workings....

 

I see Blu Logic going away as Bluetooth approaches zero cost to build into an electronics device (it already has).

On the Rosen I replaced the stock radio with Bluetooth is built into the system. Since Bluetooth is built into cellphones and smaller devices, I wonder why Toyota would install an add-in that obviously cost many times what a built in Bluetooth chip cost. My Nook Color reader even has Bluetooth built in although Barnes and Noble doesn't enable it. It takes a minor hack to make it work.

 

None of that requires a separate box and ganglion of a harness to fix. If you have touch screen switches aren't needed nor is a physical call volume control.

The software problem is the same whether it's done in the HU or a separate box.

 

It's certainly possible a car mfg might include the BT chipset in the HU, assuming BT becomes a standard feature of most chipsets, but not actually include the BT feature. In other words the software won't include BT, the car won't have BT controls on the steering wheel, won't have a BT microphone and the HU might not even have a jack for a BT mic.

More likely BT will become a standard feature on most cars but the point is just because the BT chipset is part of a standard chipset doesn't mean car mfg has to include BT.

BluLogic is normally an add on. No reason why it can't be removed. Maybe there is a step which the PP skipped or maybe the dealer did something wrong in the install.

 

That's somewhat odd. Reading an installation guide I've found online before (it was an official Toyota document), it seems like the box just passes through the default Toyota harness, so you'd basically just unplug the box from the radio and plug the harnesses going into the box on the other end into the radio.

 

The Blu Logic gets hung below the radio, at least mine was that way until I removed it, and the many feet of excess harness are coiled up on top of it. It is also wrapped in a thin layer of grey foam rubber so it's easy to miss. The wires you unplugged from your head unit were most likely the wires from the Blu Logic

 

Yeah, I believe the default mounting location for the BluLogic box is behind the environmental controls, and it's wrapped in foam so hard to see.

I know what you mean though, I have BluLogic and want to buy a new touchscreen head unit and am debating about just leaving it in or removing it and trying to sell it. It's almost more trouble then it's worth to remove it since it's so out of the way so long as you're putting in a head unit that doesn't need a ton of adapters for the car's harness. In that case I'd feel like I had too much extra crap stowed away in my dash, haha!!

 

Once you cut the tie wraps they installed it with and lift it up, it's easy to unplug the vehicle harness wires that plug into the Blu Logic and plug them into your HU (with adaptors if required). The hardest part is removing the mike and control switch unit in the dash and that's no big deal.

I took it out because electronic parts, connectors and harnesses you don't have won't fail. I also didn't like the 1/2 arsed installation someone in the Toyota food-chain did.

 

Mine was done at the dealer and looks ok. If I were to remove it I'd need to get a replacement knockout to put back in the hole where I remove the switch from, though I suppose the dealer might have one (which they'll charge me an ungodly amount for I'm sure!)

I'll probably initially leave it in the car in the event that my phone has issues with the head unit bluetooth or I can't get good enough mic performance from the head unit or some other issue with the head unit's phone operation. Once I know everything is ok with the headunit's bluetooth I'll go back in and take out the BluLogic.

 

I need one and should have bought it my last trip to the dealer.

Looks like they are Part
5553928160C0 Fitment Notes COVER, SPARE SWITCH List Price $ 5.43


But verify the number. They should be in stock, they are used on several Toyota and Lexi