Intermittent ABS Light coming on Landcruiser 100 series

Clean them and also check for play in your wheel bearings.

Regards

Derek.

as above dont be scared to twist them a little to remove .
they get covered in dirt and dust and send wrong signals to computer give them a good clean and go back to your mechanic and get codes cleared it should work
cheers

Gday Andrew,
Top up your brake fluid to the top mark, and see if it goes away. But only use the Toyota DOT3 fluid.

Instead of trying to guess what is or isn't wrong Why not take it to a Toyota dealer and see if they can fix it.

Depending what scan tool your mechanic has it may not show the fault if it has not been logged as a hard fault, not all scan tool are good including the Snap-on one.

The Toyota scan tool will show and do more then a generic scan tool.

We use a Hanatech scan that is one of the best avaliable and a Carmen and we do training at Denso in Melboure with there (DSC) scan tool and yes it does alot more then ours.

What you may want to do is find someone with a CRO / oscilloscope, disconnect the plug at the ABS sensor and check the wave form output by jacking the vehicle up and turning the wheel slowly....what you may find is one of the teeth might be chiped, warn or bent, this will show up as a dirty or weak wave form in a set location as you turn the wheel..

Or try this remove all the connectors from the ABS system check to see if any plugs and sockets have corrosion, if they are all in good condition get some electrical contact cleaner and clean then all and reassembly then with electrical silicone spray.

Regards Richard