Herbie

None of the RX400h variants have air suspension.

Absolutely, yes. Not quite sure where you'd get brushes from but it may be worthwhile giving these guys a ring. I live about two miles from them and can honestly say they're brilliant. Alternatively, go with your idea of getting generic brushes and shaping them to fit.

Clicking on the link gives me this dialog box:

Strange, it opens alright here. Maybe get it on the front page of the forum then?

Excellent find Jason! It may well be worth cleaning up that comm too. As well as brightening up the copper, have a look down the slits to see if the mica needs to be undercut but be careful not to take too much out. Looking down the shaft towards the commutator the space between the copper segments should (if you imagine it magnified) look like a letter 'U'. If it needs to be undercut then the 'U' will look almost full to the top so that there is almost no difference between the height of the copper and the height of the insulation. In other words, it should look like a gear wheel rather than a circle, if that makes sense. EDIT: Why didn't I just go straight to YouTube?

It was an optional extra so the button was installed at the factory in all cars, just in case the new owner wanted to take the option of having the DAB module fitted. EDIT: There's a sticky on the front page of ths forum in which Colin Barber listed a PDF file with the differences of equipment over the range and this should be that file

I wouldn't say so - a loose connection would be more intermittent and transient. Yours seems to be working or not working but quite stable in either state.

Glad it's finally sorted Xane and thanks for letting us know.

As above, check battery and alternator:

It's one of those things that takes just seconds to do but it's very difficult to explain how to do it - it just sort of 'happens' literally in seconds. Make sure you've got the right ones and then look for any videos on YouTube that show how to do it.

That happens when the driver's door is opened and can't possibly be described as "a puppy yapping." It's the "puppy yapping" that has me intrigued and why I asked for a recording because I've never heard anything like that coming from any car I've ever owned

So thinking logically, you've had the battery replaced and now you've got a fault that suggests a short circuit in one of the speaker pairs. What does that tell you? Maybe they trapped the wires when putting the new battery in place? No amount of fiddling with the radio switch or messing about up front is going to sort out a physical short circuit, so take the battery out and examine any wiring in or around that area as a first step and let us know how you get on.

@Sasbambam I agree with the others, https://www.autotrader.co.uk/car-details/202011085915823?utm_source=LexusOwnersClubUK&utm_medium=ForumLinks is probably the best you'll find given your timeframe and other constraints. By the way, the SE-L is the top of the range but without the hassle of air suspension - none of the RX400h's have air.

Can you record it and post it on here?

Well done Kev, good result.

The rear wheels are driven by the electric motor so when the hybrid system decides it needs to be all wheels driven, then it will activate.

Probably got more chance of finding a purple unicorn Seriously though, I do wish you well in your search but you may be waiting a while for something that fits your very narrow window.

Did you click the link icon and put the link in the link box? If so, that's why - any YouTube links you want to put in just go in the ordinary 'body' of the post and the board itself does the magic to display it.

@Thackeray That's a perfect answer William and I couldn't have put it better myself

Excellent, great result Jason, glad it's sorted. As an aside, I mean no offence to anyone but speaking as someone who has worked in electrical maintenance most of my life, I have to say that this was the holy grail of diagnostics - a perfect example of cause and effect. Waggle the wires and the fault appeared; stop waggling the wires and the fault went away; ergo, the fault had to be somewhere in that area of waggled wires.

1. I'd cut that cable tie off and grip each wire to flex it close to where it enters the connector if you haven't already done that. 2. It could still be a loose or corroded connection rather than the motor itself, so I'd open the connector and/or motor casing to check that or to check voltages/continuity across the connector while flexing the wires on the plug side.

Just to put a bit of flesh on the bones of what the others have said, if it was the battery at fault it wouldn't be a single click but more like machine gun fire in its rapidity, commonly called solenoid chatter. The battery voltage is high enough to pull in the solenoid but when the contacts make and the starter motor attempts to turn, the voltage drops like a stone to the point where the solenoid drops out, whereupon voltage rises again, operating the solenoid and the whole sequence is repeated.