RX450h AFS flashing

[WiZ]

Hi Guys,

I have 2012 RX450h which is the face lift model 2013 one.

Recently AFS starts flashing and it is not operational. I was going to take the fuse out but it is shared with air con and brakes.

Any suggestions how to disable it, so it does not flash? I am not fussed if it is not operational. 

Thanks!

[Herbie]

1 hour ago, WiZ said:

Any suggestions how to disable it, so it does not flash? I am not fussed if it is not operational. 

I think it's an MOT fail if it's fitted but doesn't work, so better to fix it.

99% sure it'll be either the mechanical linkage rod or the electrical sensor, neither of which are expensive and both are easy to swap.

Linkage rod here and Electrical sensor here

[WiZ]

Thanks Herbie!

[katabrontes]

It happens from time to time on my 350.  It usually turns off again after a few minutes.  I suspect you could resolve any MOT problem by turning it off using the button I the glove box (that's where it is on mine).

 I would check with your usual garage about the MOT.  I very much doubt it would be a failure as it doesn't affect the dip/main function and only "steers" the dipped beam lights around corners subject to a few limitations which are described in the handbook (speed above about 20 mph and angle of turn more than a little).

 

The other irritating intermittent "event" (not a fault as everything works when it happens) is that the three warning lights for brakes, VSC and one other come on from time to time or don't switch off after starting.  It has been like this for about 10 years and if they stay on they will clear if you switch off the engine and restart it again.  I have told my garage about this trick and it has passed its MOT every time

[katabrontes]

I think I might have the answer to this problem which has defied my and my garage's efforts to diagnose it for several years.

Since I fitted the new LED headlights the occasional persistent warning lights (VSC, ABS & Brakes) which either stayed on or came on unpredictably have reverted to their correct situation and stayed off all the time.

 

I assume the fault, which has never been identified and do isn't produce any error codes, was due to a CanBus error caused by the old HID conversion.

 

[katabrontes]

PS  Actually this isn't the AFS problem but the triple warning light (ABS, Brakes & VLC) problem.