Marco SC430

Some more photos of my SC430. Current mileage, low for the year at 68,802. Will be available to buy once lockdown ends.

got it Eddie, have replied

Hi Eddie - I've messaged you. I might be looking to sell my SC430 once we are out of lockdown. It's a 2003 model with only 68k on the clock - lovely car - second one I've owned.

Hi all - My 2003 SC430 ECM light came on - I used my OBD scanner to check and it's coded P0155. This is a heated oxygen sensor (HO2S) 1, bank 2, heater control circuit malfunction. I barely do around 1k miles a year in the car, it's just passed it's MOT and will be pretty much unused through the winter though I will take it out for a spin every couple of weeks. I'm thinking I don't need to do anything for now but was wondering is it worth using the OBD to clear the fault code to see if comes back or should I leave it as it is and then get the car checked out / fixed in the Spring?

How much would a main dealer charge to remedy the problem? Has anyone gone down this route?

I don't fancy doing the job myself so it's either a main dealer or an independent garage.

If anyone in the London / Surrey area has had to fix a similar issue and can recommend someone reliable that would be great.

Thanks for reading and any adviced offered

Familiar topic I know - just after some updated advice. Having just replaced a Halfords Battery which lasted a year (my SC430 is driven intermittently and not during the winter) - the Battery drain problem etc etc  - I've just fitted a new Yuasa YBX5096 12V 80Ah 740A Silver High Performance Battery which I got a great deal on from Tanya (good customer service as well) - to avoid a repeat, when the car is not being used (it's in a garage so solar charger no good) is it better to connect to a trickle charger which means having the bonnet open and not being able to fully cover the car or simply disconnect the negative terminal and reconnect when I want to use the car again. I've got Ring 12A Smart Charger so I could connect up in maintenance mode but as I say, means leaving the bonnet up. Thank you in advance for info.

very helpful guys - thank you very much - I think I'll go ahead and unplug the system

Hi all,

After a gap of 10 years, I'm on my second SC430 - a 2003 model. I bought it with after-market alloys and the TPMS warning light was lit up - a solid yellow light - which I can live with - I've seen the video on YouTube to simply disengage the system but I didn't bother as it just got noted as an advisory  (the only one) when the car passed its MOT. I had the car garaged through winter during which time the Battery went flat - recharged the Battery - start the car and now the TMPS warning light flashes and beeps every couple of minutes which is annoying - so now I'm thinking maybe I'll just do the fix in the video but before I do, a couple of questions. 1) If the system is disengaged as it's a pre legislation model does it make any difference when you take the car for MOT // 2) I don't mind the yellow light being on, is there a way to restore it to that state? My OBD scanner doesn't read any fault so that's no good to me. In general what are you people with models of a similar age with after market alloys doing about TPMS?

Thanks in advance for any advice - I live near Epsom in Surrey so if there's an independent Lexus specialist in the area anyone knows of who can be recommended for future work this would be useful - car is booked into Croydon Lexus for the airbag recall fix and no doubt they will propose a £££££ solution for the TPMS issue.

Cheers