3673 Views 5 Replies Latest reply: 2017-03-06 15:16:52
VSC AGAIN and AGAIN and now some codes – anyone ever figured this out?
Well after 8 years I’ve gone and bought a decent scanner/code reader – Autel DS708 and plugged into our 2003 GS300. For 95% of the time we have owned this the VSC/ABS lights have been on – thought we sorted it out 3 times 1) brake fluid reservoir was 5mm low 2) the bank 2 sensor 2 oxy heater/sensor was changed 3) reset the Yaw rate sensor (even made an OBD plug up specially to make this easier as the generic code readers have been known to trigger these lights on Toyotas for some reason – they all worked for a little bit then back again. The lights normally illuminate after 1-2 mts of car movement.
Now we also have the TIS Dealer software (disappointingly very basic old thing though) and both systems show NO OBD or fault codes anywhere. The abs sensors all read fine during driving.
Having gone deeper into the new scanners system I go to the ABS section where the Yaw sensor can be reset and the utility allowed another fault scan and the pictures below show an alarming amount of faults!!! Physically impossible for them to be real – it also allows you to clear faults at this menu but….it does not clear them – they remain in the system! Is it possible that’s where the real culprit is living????
Now before you ask – every mechanical an electrical component on this car HAS been changed from the complete drivetrain (engine/box/diff/exhaust) to everything under the hood – all except the ECU – and despite the mind boggling cost – the exact same problem exists – by simple conclusion (bearing in mind the donor car drove with ZERO faults) is that the fault remains in the ECU - ????
Now after years of probably reading every post on the subject surely someone must have got the bottom of this cr*p system that even turns off the VSC when the cat heater senor goes faulty??? WHY??? – it’s not part of the traction/braking circuit?
Is there maybe a bypass for this??
Help….because if these do not sort the problem I am going to have to scrap this amazing motor – sometimes you have to know when to let go…..
there are 3 pics but system only uploads 1?