Adjustment
PrecautionGeneral Information
GENERAL INFORMATION
A large number of ECU controlled systems are used in the 4RUNNER. In
general, ECU controlled systems are considered to be very intricate, requiring
a high level of technical knowledge to troubleshoot. However, most problem
...
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place
and turn off the air conditioning system.
Check to see if steam is coming
out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam subsides and then ...