Chris.ac

I agree with smurf. New cap is cheap. If it is not sealing, you are reducing the boiling point and losing coolant. Check by loosely wrapping a clean white cloth around the overflow and cap on the reservoir, then checking for pink/red after a drive. You could also have a hairline crack on the reservoir then expands when hot

E10 is fine. You can check similar engines in other Toyota models. JDM Toyotas are manufactured to be compatible with even higher E values. The RON rating is more important to prevent preignition in the more powerful engines.

Remote start antenna.

I'll PM you

Try this ewd file (electrical wiring diagram) https://drive.google.com/file/d/1n23j7tsCPMPXC3dmUQWFD0V6fPnEAKy0/view?usp=drivesdk It's in Japanese, but you can print it out and use Google translate

This also works on the 20 series, confirmed. I didn't bother removing the old relay, just the connector, so if it does fail, it's an easy swap back.

The rear middle position is not that bad for general use, just do a swap over on long journeys. It is a proper 3 point harness, the belt is stored in the roof and pulls down with two buckles that give a lap and shoulder belt. In that image, it looks like the rear has both sides set at different angles, hence the exaggerated gap between the fold down armrests. I will say that the centre position is more comfortable than sitting in the centre in the rear of a Mercedes or bmw; there is no centre hump for the drive shaft or exhaust on the floor so there is plenty of legroom.

Good job, yes, no need for later versions of techstream, they add no further function. Just continue to use the version that came with the adaptor - the firmware in the adaptor and the 'hacked' exe in v17 is designed to fool techstream into thinking you are using an official Toyota adaptor.

20 series. 65litres. I've run the tank down as far as I'm willing to risk it, but never managed to get more than. 54litres in before the pump shuts off. I dont know if the capacity is before they displace some space with the actual pump/float/evap purge system, and i imagine that at 'empty' there will be at minimum 5 litres still in tank to keep pump wet and cooled. You can look on YouTube and see some Toyota's like corolla being driven until they stop, and they all seem to be able to run for at least 50 miles when the tank reports empty, one corolla travels about 98miles on empty, which tells you that Toyota is basically reserving up to 10 litres in the tank for cooling and lubrication of the pump. I guess it's similar to how speedo can over read but not under read your speed, they don't want people waiting to refuel to the point going up a steep hill with make engine starved of fuel.

Put doors in manual mode as suggested via the button to left of steering wheel. If you must retain the auto mode, you can use techstream via a laptop and vci cable to reduce the multiple beeps to a single beep.

Check out the electrical system manual here. https://slideplayer.com/slide/10248235/ It has the reset process for Windows and doors. You have to basically put them in manual mode (the ' pwr door off' button to left of the steering wheel) and open fully then close to recalibrate the ecus. Take a read

White paint had a batch issue. Paint was mixed in America and caused recall. Unfortunately, as an import, and being outside the recall window, we are stuffed. It affected pretty much so Toyota with this white paint for a few years either side of 2010

Check the forum posts. Several have had this issue where the drop-down screen has failed. You will find instructions on how to bypass the audio

I agree. Booster usually clamps to outside edge of connector, you might have a contaminate on the inner edge of the battery clamps

Beeping when attempting to use the external door buttons to lock, at least on the 20 series, is an indicator that a fob is inside the vehicle. It's a safety feature to prevent you locking your keys in the car. Maybe you have a fob hidden in the car somewhere? I know some of the remote start systems had a box that a fob was locked in, so that doors could be locked whilst the engine was running unattended.

That's an export model alphard, probably in Malaysia or Hong Kong. The jdm alphards have a slightly different headunit model that does not have English as a selectable option

For less than £40 , you can get a vci adaptor and copy of techstream, and program a blank key yourself

Not sure that's possible. One way to force it may be too leave gear selector in N, then use start button to switch off ignition. Be sure to check headlights and interior lights are off.

I've sent a private message.

From the official hybrid maintenance manual. Do you have a windows pc?

You mean stuff like this.

As Rojie said. It's a multitude of aftermarket things. Could be a remote trigger for dash cam. Could be a push to talk button for voice activated satnav. Could be a toggle for the headunit to allow dvd to play on front screen whilst car is in motion.

There are 3 zones within the Alphard, i believe by default, the fib has to be within 100cm of the start button to work effectively. You can expand this so that the key can be further away via the obd2 port using the right software.

Not too sure about the 10 series. The 20 series alarm latch is incorporated in to the latch itself. That looks aftermarket. Do you have an alarm fitted? It was a dealer option

Not as simple as that, the Japanese maintenance manual is a cdrom, that had an offline html based manual. It only runs properly on internet explorer 5.5/6, so you need a windows xp or that era, to run it. The other option is to purchase a paper version, but they are expensive.