ABS indicator, brake system indicator, and VSA indicator do not come on at the same time
Diagnostic procedure
Do the gauge control module troubleshooting.
Update the VSA modulator-control unit if it does not have the latest software,
or
substitute a known-good VSA modulator-control unit,
then retest. If it is OK, the VSA modulator-control unit was updated, troubleshooting is complete. If the VSA modulator-control unit was substituted,
replace the original VSA modulator-control unit.