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:

Occupant Classification ECU Malfunction (B1795)
DESCRIPTION DTC B1795 is stored when a malfunction is detected in the occupant classification ECU. Troubleshoot DTC B1771 first when both DTCs B1771 and B1795 are present. DTC Code DTC Detection Condition Trouble Area ...

Propeller Shaft System
Problem Symptoms Table PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. ...