Hint:

Test mode procedure
Terminals of ecuPrecaution
Troubleshooting precaution
When there are malfunctions in the contact points of
the terminals or installation problems with any parts,
removal and installation of the suspected problem
parts may return the system to its normal condition
either entirely or temporarily.
In order to ...
If your vehicle overheats
The following may indicate
that your vehicle is overheating.
The engine coolant temperature
gauge shows the red zone or a
loss of engine power is
experienced. (For example,
the vehicle speed does not
increase.)
"Engine Coolant Temp High
Stop in a Safe Place See
Owner's Manual" is shown
on ...
If 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.
Stop t ...