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:

System Description
SYSTEM DESCRIPTION 1. DESCRIPTION (a) In the Variable Flow Control (VFC) power steering system, the power steering ECU assembly receives the steering angle signal, steering zero point memory, the steering speed, vehicle speed signal and engine speed sign ...

Trouble in Passenger Airbag ON/OFF Indicator
DESCRIPTION The occupant classification system detects the front passenger seat condition. The system then informs the passenger of the front passenger airbag assembly and front passenger side knee airbag status (activated/not activated) with the passenge ...