gogsck

My 2007 RX400h SEL is full of water.

I am now in panic mode.

I had suspected blocked sunroof drains but maybe not. I have occasionally had some water landing on the load cover on the boot. Now there is water in right hand front and rear foot wells and left hand rear.

My car had a towbar fitted last year so maybe I need to check round rear bumper first. I don't have a garage that I can get my car into to work on it so it is difficult in the endless torrential rain we have had recently.

Hi Duncan. I realise the light may be / is doing its job but I need to diagnose why the light is on and fix it.<br />I recon the DIAG VSC 45 was probably due to brake pads.<br />I am trying to turn a not too good car into a good car and appreciate everyone's help to do so - thanks. Still need to try and find why the Airbag light is on but no error codes to point me in the correct direction!

Still no joy with the Airbag light. The Toyota Techstream software does cover the airbag but no error codes show.

I did discover that I had a DIAG VSC 45 error which I cleared using the instructions in your link - pressing brake pedal 8 times.

Managed to get a rain sensor and ambient temperature sensor. The rain sensor is now fitted but I need to find a plug to fit the temperature sensor as that has been chopped off.

I have also got a copy of Toyota Techstream so will now try to diagnose the airbag issue.

Hi Colin, I had read that it is not possible to program a key for a UK 2007 400h without software but will give it a try. Have to get a key of eBay first though. You don't know what the model number on the sticker on the remote should say do you as mine has fallen off / been lost / removed!

Yes I have a master key. How do I program another key?

Couldn't get the airbag to reset or even get a code using pins 4 & 13 but thought that diagnostic software would point me in the correct direction.

I have downloaded a full service manual and electrical manual so if I can find the codes I should be able to sort the problem.

Hi thanks for that. The sensor is clearly missing from my car.

You can get an OEM version in the States for $25 but I cant find one in the UK. looks like I may have to go to Lexus.

I am currently trying to find the best software for reading & resetting the airbag light. There are some on eBay, one of which looks good as it says you can reprogram keys and immobilizers too - so I could program a second key.

I will have to look for the auto windsreenwiper sensor too.

Believe it or not the car is getting sorted bit by bit and is a great car to drive!

Thanks for everyone's help. it is very much appreciated.

Here is a picture of under the number plate. As you can see there is no sensor. Do you happen have a picture of what it should look like?

The wiring goes to the mirror and The mirror does light up green and switch on and off. There is a piece of plastic lying in the boot which I will look to see if it fits behind the mirror but no sensor.

Hi, I have attached a picture of the gap where the sensor behind the mirror should be.

Still can't find external temperature sensor. I will attach a picture of the lower bumper when my phone charges up enough for flash!

Hi it is recorded as stolen & recovered in 2010 but DVLA check & MOTs shows all mileages consistent. looks like windscreen may have been replaced as it is the only one not to say Lexus on it but that could have been due to a stone chip.

I am needing to find someone that is breaking one to get the missing parts. I suspect that the front bumper has been changed and some bits not refitted. i.e. headlight washers and external temperature sensor. There is something missing from the windscreen just behind the rear view mirror which I think is the auto windscreen sensor too. but everything else works fine.

Hi I paid £8,500 in an auction and it has done 55,000 miles. The bodywork looks great. There is one absolutely tiny shopping trolley dent but other than that if looks perfect. I think it is worth sorting it out as it also drives perfectly.

the sensor does not appear to be there. I'm beginning to wonder what has been done to this car!

Thanks for that. I will check under the seats. There are a lot of connectors as the DVD player is mounted under the drivers seat.

I saw a picture on line of a RX350 showing the temperature sensor attached to one of the vertical bits on the lower bumper and visible externally but it is not present on mine. Is it hidden on the RX 400h?

I understand the importance of the airbag working properly but as a qualified computer engineer / electronics engineer and long time fixer of cars, I thought (and hoped) there would be a way to fix things myself!

I tend to trust things that I have fixed better than those that have been fixed by someone else.

Yes. I took a chance as I got it very very cheap but missed the Airbag light!! :(

I have fixed a few other issues and the car looks great but I need to find a solution for the airbag and external temperature sensor.

The seats have been adjusted using the power adjuster on the side of the seats. I just bought this car last Monday so anything could have been done in the past.

It has one or two issues that need sorting and the airbag light is one of the most urgent ones.

The external temperature gauge is not showing a reading either. I am wondering if it might be missing!

I have tried with the ignition off and on before starting the procedure but I can only get a steady flashing airbag light. you mentioned no current. could there be a blown fuse?

My ELM327 software only deals with engine codes as you said so that didn't help me.

Unfortunately connecting pins 4 & 13 didn't work either. At the point where I should get the error code the Airbag light just flashes on and off continuously at about 2 flashes per second and when I disconnect the pins the light comes on instantly. I have tried several times with no success. :(

thanks for that. I will try it when I can get a chance. the car is outside and the forecast is rain!!!

Disconnecting the Battery didn't fix it. What's plan B?

I do have ELM327 software and connector but I have never used it. could that reset the light or is there another way?

My Air bag light is on, in my 2007 RX 400h SE-L.

Is there a way to reset this without going to the dealers? They are 70 miles away.

The car had a dud 12v Battery when I bought the car and it kept going dead. It has now been changed. Could this have caused the problem?