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Lexus RX 400h Electrical/Lighting Questions
Discuss electrical and lighting issues here.
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800-255-3987.They said no rx400h had these kits installed.First they are working on the rx330 and then possibly the rx 400h.
I originally heard about the kit on another Lexus owners site so I just thought I'd share the info because nobody wants their car damaged or the headache or expense. In the suburbs we're relatively safe, but as soon as the car gets parked in a big city we're sitting ducks. I guess I was just fortunate the car was in a garage most of the time in Philly and lucky when it was parked on the streets for a relatively short time. I'm not planning to tempt fate too long!
Rescue truck driver said its because it has a very small auxiliary battery for the size & complexity of the car.
When I finally jump started it the engine ran for a few seconds and then cut out because the traction batteries were presumably OK.
Seems weird that the car can be immobile because of a low aux battery when there's all that juice sitting in the traction batteries.
Anybody know why the design doesn't allow for starting the engine from the main batteries via a voltage converter?
Anybody else had aux battery problems?
So I would agree, it seems really odd that the down-converter, presumably rated at 50 amps minimum, wouldn't supply enough 12 volt "juice" to support the electronic needed to "signal" a need for an engine start.
Actually what seems even more odd is that the 12 volt battery wasn't being continuously charged via the down-converter as you sat there "twiddling". No reason for that not to work even in the accessory position.
Also makes me wonder if instead of calling for a "tow" you had simply placed the system in "run" for ten or fifteen minutes to let the downconverter recharge the 12 volt battery.
When your sitting in the car "twiddling" with the ignition in the "accessory" or "on" position you can easily discharge the small battery quickly because there is no charging taking place.
After you turn the key to "start" and the car enters "ready" mode there is a steady 2 - 3 amp trickle charge into the aux battery regardless of whether the engine starts or not. (When the engine starts I guess this goes up to conventional 50A or whatever charging rate but I haven't checked that yet.)
You're probably right about waiting instead of calling the tow truck - but it would take a few hours at 3 Amps.
Bottom line is - when twiddling stick to "ready" mode (but not in a closed garage in case the engine decides to fire up!).
Does anybody know if there's a more technical user or workshop manual available for these cars - no one here seems to understand exactly how they work - including the dealers!
There is also a Toyota internet site where the same info is available on a subscription basis.
Does anyone have an idea / fix for this? no other gremlins. Can we use a larger battery?
HELP!
could anyone send me photos of the high voltage harness (Batterycable, U-V-W cables of generator / Motor..) and HV connectors of a lexus hybrid?
Would be very great if you could help me!!
Thanx
reg.
Tom
Mileage for all vehicles drops during the winter months for a collection of reasons. People tend to warm up their cars, fuel formulations change, slippery road conditions... it all chops away at your mileage in the winter.
Unrelated, you can purchase datadots from datadots.com, too, but it isn't the same as the Lexus installation.
2006 400h - original model
Also, since the event occurred I have noticed that my hybrid battery no longer fully charges. The battery display never indicates more than 6 out of 8 bars. I start at the top of a long hill with 6 bars, and it still shows 6 bars at the bottom of the hill.
Wrong.
Ford independently developed their hybrid system, but the two technologies were very similar.
Toyota and Ford SHARE patents between them, which means that Toyota is using Ford technology, and vice versa.
There are also a number of hybrid patents Ford does not share with Toyota, which are being used in the FEH.
So, no Ford patents were required for the original Prius but Ford REQUIRED Toyota patent licensing for the Escape.
My understanding is that they traded patent licenses, rather than any payments. Thus Toyota WANTED patents owned by Ford.
Toyota made the Prius first, while Ford was concurrently developing the FEH, so of course they would go to Ford with discussions rather than vice versa.
But in any case it is vastly different from Nissan (for example), which out-and-out licenses the Toyota HSD for its hybrids. Ford did the development, not copied the design.