Toyota 4Runner: Do-it-yourself maintenance

Emission inspection and maintenance (I/M) programs

Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system. If the malfunction ind ...

Do-it-yourself service precautions

If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections. CAUTION The engine compartment contains many mechanisms and fluids that may move s ...

Other materials about Toyota 4Runner:

Evaporator Temperature Sensor Circuit (B1413)
DESCRIPTION The No. 1 cooler thermistor is installed on the evaporator in the air conditioning unit to detect the temperature of the cooled air that has passed through the evaporator and control the air conditioning. It sends appropriate signals to the No ...

Diagnosis System
DIAGNOSIS SYSTEM 1. CHECK WARNING LIGHT NOTICE: When there is a problem with the tire pressure warning system, the tire pressure warning light blinks at 0.5 second intervals and comes on after 1 minute. When the malfunction has been corr ...