Wanted: Touch screen

[dorianwest]

My touch screen has been intermittent/dysfunctional and needs to be replaced. I'm looking for a replacement, maybe from a vehicle being parted out?

Any tips appreciated.

Thanks!
Dorian

 

[asavage]

86100-0R033 (discontinued, according to toyotapartsdeal.com)



Or, about $9,000 (after tax), according to toyota.com

 

[dorianwest]

Wow, I’ll be looking for a salvaged part, I guess!

Thanks!

 

[hokiematt]

Are you wanting the entire navigation unit assembly, or just the touchscreen? If the latter, I should have one from an otherwise bricked head unit. Feel free to DM.

 

[asavage]

I was going to say, but Matt beat me to it, that the bare touchscreen might be interchangeable with the ICE RAV4 of similar vintage, such as 86100-0R032 (note: one digit difference from the EV version 86100-0R033).

https://www.ebay.com/itm/235753564763



This would have to be researched or pioneered, but if I was in your situation, and couldn't find a reasonably priced used nav unit, I'd be tearing into mine to see if an ICE version's bare display could be made to work.

 

[miimura]

I am by no means an expert on ICE models, but I don't think there was ever an ICE RAV4 that used the home button interface like the EV. I think the 032 version is just an older rev of the same functional assembly.

This seems to be confirmed by the Toyota part page below. See: "Previous Version(s)".
https://autoparts.toyota.com/products/product/receiver-assy-radio-navigation-861000r033

 

[dorianwest]

Thanks, all, for your input! I don’t know the root cause of the issue, but the dealer quoted $5k to replace it a couple of years ago.

I’ll research it more, but I think it’s more likely that I’ll be stuck with some firmware issue if it didn’t come out of another RAV4 EV.

Thanks!

 

[hokiematt]

In my opinion the only notable benefit of the factory nav unit is the ability to toggle on/off the extended charge function. At this point, nearly all RAV4 EV battery packs have lost enough capacity that there is little if any range improvement from extended charge. Other forum members have successfully upgraded to more modern head units equipped with Car Play/Android Auto, and may be a route you consider.

 

[asavage]

How is charge scheduling done if not with the factory nav unit?

 

[miimura]

How is charge scheduling done if not with the factory nav unit?

EVSE can do scheduled charging.

 

[asavage]

Well, yeah, some can -- a whole lot of the lower-end EVSEs don't have scheduling, esp. "fat snake" mobile ones. What I was implying is that I think more is lost, in replacing the OEM nav unit with aftermarket, than only access to the standard/extended range toggle feature.

 

[miimura]

Well, yeah, some can -- a whole lot of the lower-end EVSEs don't have scheduling, esp. "fat snake" mobile ones. What I was implying is that I think more is lost, in replacing the OEM nav unit with aftermarket, than only access to the standard/extended range toggle feature.

Facing a repair of thousands of dollars for an OEM head unit, a smart EVSE is not that much of an expense.
However, I'm with you - if you can keep an original head unit in the car, you will a more functional vehicle.

 

[Konduit EV]

We have one tested working. $2500 Shipped with a year warranty let me know if you’re interested!

 

[hokiematt]

You're right Al, charge scheduling is via the OE nav unit; I just never considered that to be a particularly useful feature. If someone had a 'dumb' EVSE and wanted to keep the timer functionality, there are some smart switch/relay options that could be used to control power to the EVSE for <$100. Perhaps I'll look into seeing what messages the head unit sends to the gateway to start a delayed charge session...

If someone is willing to part with $2500 for a working OE head unit, I'll gladly sell them the one from my own RAV

 

[davewill]

The way to retrofit a timer functionality for an EVSE isn't to interrupt the power, but to put a double pole relay in the control pilot (CP) signal. When "on" it should connect the outgoing CP to the EVSE's CP, and when "off" it should connect the outgoing CP to a 1K pull-up to 12v.

If you interrupt the power instead, you will face two problems. First, the car won't know the EVSE is there, and may have an error when it is off. Second, when the timer goes to the "off" state, if the car is actively charging, you may have arcing in whatever timer you are using (and the car may register an error because the power just went away). Also, the timer becomes another connection in the power circuit that can go bad and overheat.

There are cheap relay boards available that can connect to WiFi or Z-Wave and then be controlled by automation which would do the job very well.

 

[Konduit EV]

I made my way upstairs to where we keep all of our spare parts. Seems as though we have a few more than I thought. Id be willing to send one out for $1000 shipped.

 

[dorianwest]

@Konduit EV thanks for your offer!

However, I found one on eBay for $500 a few days ago:

eBay

If it doesn’t work, I will reach back out to you!

 

[dorianwest]

Here's a quick update, in case others have similar issues.

The replacement unit I received on eBay worked! Plug and play with no apparent issues... I just reset the list of Bluetooth devices, but otherwise, it was super straightforward.

The only item of note is that one of the part numbers on the replacement unit is 468100-2861, but the one that came out of my car is 468100-2860.



Cheers!

 

[asavage]

To clarify: do you continue to have access to the EV-specific display pages?