Toyota AVENSIS 2000 Supplement Manual page 345

DI–214
4 Check whether or not the ECU terminal STP input voltage is changed when the
stop light switch is turned on and off.
YES
Check and replace ABS & BA & TRC & VSC
ECU with actuator.
AVENSIS/CORONA SUP (RM781E)
DIAGNOSTICS – ABS WITH EBD & BA & TRC & VSC SYSTEM
NO Check the stop light switch circuit (See Pub. No.
RM599E on page BE–45).