Zabe

1 hour ago, Herbie said:

Just sent you a PM that may help Zabe.

Thanks, appreciate that! 

1 minute ago, Herbie said:

Aha, right, I see the confusion.

The 12V battery is often referred to as the auxilliary or starter, because the main battery in a hybrid is the high voltage traction battery (depends on model but this is usually somewhere around 300V) and you don't want to be messing around with that unless you have the necessary PPE, tools and you know exactly what you're doing.

Yes I luckily do know that and apologies for the misunderstanding.

So Halfords tested the Battery and said its fine so now I'm back to square one again. 

2 hours ago, Herbie said:

Almost any car accessory shop that sells batteries will be able to test it for you, or somewhere like KwikFit, National or even Halfords.

I've never had a GS so I don't know where the battery is, but I'm thinking it can only be in the engine bay or the boot. In my RX it's under the boot floor.

EDIT - I'm trying to do half a dozen things at once today so I didn't notice at first but something seems a bit fishy here.

First you say that the battery is only two months old and that you've tested it to be ok, but then you ask "where the auxiliary battery is located as I'll just get a new one from lexus as its never been changed! "

What's going on?

The Battery in the boot has been changed with a new one from lexus 2 months ago.

This is the 12V Battery. When you said Auxiliary Battery I thought you was referring to another Battery.

4 minutes ago, Herbie said:

Almost any car accessory shop that sells batteries will be able to test it for you, or somewhere like KwikFit, National or even Halfords.

I've never had a GS so I don't know where the battery is, but I'm thinking it can only be in the engine bay or the boot. In my RX it's under the boot floor.

OK thanks for that. I'll go to kwikfit or Halfords now!

Also just to clarify, are referring to another Battery apart from the 12V one in the boot of the car? 

Just now, Herbie said:

Given that it's only two months old you're most likely right, but did you just test it with a multimeter or did you do a proper load test with a proper battery tester?

The multimeter can show, say, 12.8V but as soon as a load is applied that voltage could drop like a stone if the battery has a bad cell.

Yes - any of the other things listed below 'Auxilliary battery' in the last column headed "Trouble Area". These are all things that could be at fault in order of likelyhood.

Ah I see, I did use a multimeter as that's all I have! Where can I get it tested properly?

Also any idea where the auxiliary Battery is located as I'll just get a new one from lexus as its never been changed! 

OK so I just checked the Battery and all is perfect with it. Anything else that can cause this? 

3 hours ago, Herbie said:

I haven't got the workshop manual for a GS but this is for the RX450h and is probably the same.

Notice that the 12V battery is the most likely cause in each case, so first thing I'd do would be to have that battery load tested and see what the result is.

Thanks for the response, I will check my Battery to make sure its healthy. But its only been replaced with a genuine lexus one no more than 2 months ago! 

I guess I'm the only unlucky one with this issue.

You will not go wrong with the denso blades!

This is actually what the Lexus dealers use.

Hey guys,

Can someone please advise what the error C1241 under ABS is.

Error description is low or high power supply voltage.

Any idea what's causing this error?

Many thanks guys.

20 hours ago, Initial P said:

He's not logged in for over a year now.

I know but it would have been nice to know if the problem was sorted and what caused it! 

Thank you for all the input guys, I ended up taking it to lexus and it's straight as an arrow now!

On 4/30/2015 at 9:01 AM, Carl911 said:

To be honest, that's what I thought but they are supposed to be the experts.

I'm waiting to see what they say as they were trying to get a new pump on warranty.

I still thought it sounded like a buzzing heat shield as has been mentioned.

Maybe I'll take it somewhere else for a se I don't opinion.

Carl

Hi mate, did you ever get to the bottom of this? 

2 hours ago, NemesisUK said:

If the geometry is in spec and the steering wheel is off centre, firstly make sure whoever is doing the geo is adjusting the tracking evenly on both sides to maintain the steering centre. If that is all correct then make sure the steering ECU centre position is reset.

Thanks for the response, I'm going back at 1pm and I'll ask him to reset the steering position.

On 12/14/2021 at 9:06 PM, Stefan213 said:

I have the same problem, steering wheel not straight and car pulling to left. Dot all 4 wheels alignment and still pulling a bit to the left, steering wheel was still not straight (left) took it out and moved it one slot tonthe right and now its ****** to the right.

Will check again next weel the alignment and probably this will be the end of it

Did you manage to sort yours out. I'm losing my cool with this. 

On 12/14/2021 at 5:05 PM, Skm77 said:

I had the same problem mate i take it you took it to kwick fit because there the ones who mostly use the hunter alignment no good they make it worse or in my case wouldn't even touch it because of the rear steering but lexus only charge £80 for alignment take it there solved my issues 

I may have to take it to the dealer to do then. I actually took it to a specialist that is well known in the car scene too as before it was in a tyre shop that tried to get it done! 

Thanks for the advice. 

Hi guys, I hope someone can give me some advice please.

I'm having a real hard time getting my GS450H aligned. It comes of the ramp with everything on spec but the moment I drive off the steering has to be held slightly to the right for the car to go straight!

Can the camber on this car be adjusted as I know with this I can get it right! Where are the bolts located to adjust camber please.

Has anyone else had issues getting their GS450H aligned?

My car so far has had 4 brand new tyres and I've had 3 different places now check the suspension components for wear but they all advise its perfect. 

Thanks in advance guys.

4 minutes ago, Herbie said:

Yes it does. Just Google for "OBD2 pinout" (without the quotes) and you'll find a whole lot of info about which pins to use.

Thanks for the quick reply, im installing a dash cam on my 2007 GS450h and the cam also has an option to be powered with an OBD cable as long as the vehicle has a permanent live 12V when ignition is off!

I need this for the cams advanced parking mode for motion and impact detection, but a permanent 12V is required.

Do you think I will be ok? 

3 minutes ago, Herbie said:

Yes it does. Just Google for "OBD2 pinout" (without the quotes) and you'll find a whole lot of info about which pins to use.

On 5/3/2015 at 5:34 PM, Connoisseur said:

I'm looking for an ignition switched live and permanent live for an install I'm doing (Alpine Ezi DAB unit) but don't know of one in the roof - could you use the int. lamp feed with an inline switch (and fuse)?

So for me the switched live is looking like the cigar lighter in the console and the permanent live either from a spare in one of the fuse boxes, or there is a permanent live at the OBD port.

Good luck and if I find out more will let you know. It seems GS450h electrics may be a bit of an unexplored area..........

ps is it worth popping the large plastic trim cover off adjacent to the roof lamps? If the sunroof loom is there it might be visible for testing with a multimeter?

Sorry I know this is an old thread but I wanted to ask.... does the obd port have a permanent live 12V. I want to power a dash cam using the obd port! 

On 5/3/2015 at 5:34 PM, Connoisseur said:

I'm looking for an ignition switched live and permanent live for an install I'm doing (Alpine Ezi DAB unit) but don't know of one in the roof - could you use the int. lamp feed with an inline switch (and fuse)?

So for me the switched live is looking like the cigar lighter in the console and the permanent live either from a spare in one of the fuse boxes, or there is a permanent live at the OBD port.

Good luck and if I find out more will let you know. It seems GS450h electrics may be a bit of an unexplored area..........

ps is it worth popping the large plastic trim cover off adjacent to the roof lamps? If the sunroof loom is there it might be visible for testing with a multimeter?

Sorry I know this is an old thread but I wanted to ask.... does the obd port have a permanent live 12V. I want to power a dash cam using the obd port! 

Hi guys, I hope someone can advise on this issue that's doing my head in!

I changed the rear tyres on my GS450h and got all 4 wheels aligned (I know but this is something I always do when ever I change tyres on an axle whether it be 2 or all 4 tyres) the tracking was perfect and after about a month of driving the tracking went out. I have to hold the steering wheel to the right in order to go straight as the car will turn left.

I have not hit any potholes or gone over speedhumps fast or curb my car so this was strange to me.

I went back to the garage and upon checking, the alignment was out! They have attempted 4 times to do the alignment and every time I leave on green on the hunter alignment system but as soon I come back because of the same problem the nearside front tyre toe is out.

there is no play on any of the components from all the checks carried out by the tyre shop and I also went to another garage for a second opinion incase there is play somewhere that could cause this but they also could not find any problems.

The calipers have been checked incase they are binding and all is great. the tyre pressure is also the same so that's also out of the equation.

Can someone advise on the correct way to track a 2007 GS450h or check something that has been missed from what I have mentioned.

Many thanks in advance

Hi guys, I hope someone can advise on this issue that's doing my head in!

I changed the rear tyres on my GS450h and got all 4 wheels aligned (I know but this is something I always do when ever I change tyres on an axle whether it be 2 or all 4 tyres) the tracking was perfect and after about a month of driving the tracking went out. I have to hold the steering wheel to the right in order to go straight as the car will turn left.

I have not hit any potholes or gone over speedhumps fast or curb my car so this was strange to me.

I went back to the garage and upon checking, the alignment was out! They have attempted 4 times to do the alignment and every time I leave on green on the hunter alignment system but as soon I come back because of the same problem the nearside front tyre toe is out.

there is no play on any of the components from all the checks carried out by the tyre shop and I also went to another garage for a second opinion incase there is play somewhere that could cause this but they also could not find any problems.

The calipers have been checked incase they are binding and all is great. the tyre pressure is also the same so that's also out of the equation.

Can someone advise on the correct way to track a 2007 GS450h or check something that has been missed from what I have mentioned.

Many thanks in advance

Many thanks for all the input guys! I am really glad we have such a good community on this forum.

I guess everything is fine and I'm being paranoid.

On 9/21/2015 at 7:27 PM, silverdevill said:

Thanks for the reply Adrian. Took it to lexus Wolverhampton thisafternoon and they pretty much confirmed what you have said, so its booked in for next tuesday to have the work done under warranty, hopefully i'll get her back good to go.

Mate did you ever get to the bottom of this

14 minutes ago, NemesisUK said:

The engine will also run to maintain the designed fluid operating temps, even if the climate control is off the engine needs to keep itself warm to operate efficiently 

Ah that's a very good point. It might be that during really cold weather! 

3 hours ago, Thackeray said:

It sounds as if the engine wouldn't be running to provide heat if you have the climate control turned off. One unlikely possibility is that you've been going down a long hill and the high voltage battery has been charged to maximum. Even when the car stops, the car may reduce the battery charge by using the electric motor to spin the engine without fuel. What you hear sounds like the engine running but it isn't running on fuel. I would think this is unlikely unless you routinely take a route down a long hill.

(Edit: your last post says the charge level goes down, which makes this explanation sound possible.)

On the other hand, when the battery is low the engine will run, even when stationary, to charge up the battery. On the IS, the engine will start when the battery goes down to 40% charge (two bars on the meter) and the engine will stop, around four minutes later, when the battery reaches 50% (three bars on the IS).

Do these possibilities fit with any of your scenarios? The 2007 GS450h may be a bit different from my experience with the IS300h.

Thanks for the input but unfortunately its very different to what I'm facing!

My Battery has more than enough charge but the petrol engine stays on.