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:

Open in Motor LH Circuit (22,24)
DESCRIPTION When there is an open in the side auto step motor circuit, the side auto step controller ECU assembly does not operate the automatic running board. DTC No. Detection Condition Trouble Area 22 ...

Power Source Mode does not Change to ON (IG and ACC)
DESCRIPTION When the engine switch is pushed with the key in the cabin, the power management control receives signals to switch the power source mode. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When using the Techstream with the engine swi ...