How To Proceed With Troubleshooting
WARNING: This page is about a different car, the 2005 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Troubleshoot in accordance with the procedure on Fig 1 .
Fail safe function:
When a failure occurs in the ABS & BA & TRAC & VSC systems, the ABS and VSC warning lights are lit and ABS & BA & TRAC & VSC operation is prohibited. In addition to this, when the failure which disables EBD operation occurs, the BRAKE warning light is lit as well and EBD operation is prohibited.