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:

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART HINT: If a trouble code is output during the DTC check, inspect the trouble areas for that code. For details of the code, refer to the "See page" below. DTC Code Detection Item See p ...

Using the audio control function
Changing sound quality modes Type A Pressing selects the mode to be changed in the following order: “BAS”→“TRE”→“FAD”→“BAL”→“ASL” Type B and C Press . Press , , , or (type C only) as corresponds to the desired mod ...