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:

Detachable pole antenna
The antenna can be removed. Removing the antenna Place the included wrench around the antenna. When not in use, the wrench is stored in glove box. Loosen the antenna with the wrench and remove it. Installing the antenna Tighten the antenna by one h ...

A-TRAC Indicator Light Remains ON
DESCRIPTION This is the A-TRAC main switch circuit. When the A-TRAC switch is turned on with the transfer in L4, the A-TRAC function is available and the A-TRAC indicator light illuminates. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When replaci ...