Hint:

Test mode procedure
Terminals of ecuIf a warning light turns on or
a warning buzzer sounds
Calmly perform the following actions if any of the warning
lights comes on or flashes. If a light comes on or flashes, but
then goes off, this does not necessarily indicate a malfunction
in the system. However, if this continues to occur, have
the vehicle inspected by your Toyota dealer.
Actions to ...
Using the cd player
Power
Volume
Cd eject
Selecting a track or displaying
track list
Searching playback
Random play or back button
Repeat play
Fast-forwarding or rewinding
Changing the audio source/
playback
Playback/pause
Selecting a track
Displaying text message
Loading cds
Insert ...
For vehicles equipped with vehicle stability (vsc) system
Notices when using drum tester
Before beginning testing, disable the vsc. To
disable the vsc, turn the ignition switch off
and connect sst to terminals 12 (ts) and 4
(cg) of the dlc3.
Sst 09843-18040
Notice:
Confirm that the vsc warning light blinks.
Vsc system will be r ...