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:

Diagnosis System
DIAGNOSIS SYSTEM 1. BUS CHECK (a) Select "CAN Bus Check" from "System Select". 2. CHECK FOR INSTALLED SYSTEMS (ECUS AND SENSORS) THAT USE CAN COMMUNICATION (a) The systems (ECUs and sensors) that use CAN communication vary depending o ...

Installation
INSTALLATION PROCEDURE 1. INSTALL INSTRUMENT PANEL PASSENGER AIRBAG ASSEMBLY (a) Attach the 5 hooks (A). Text in Illustration *a Hook A *b Hook B ...