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:

Slide Sensor Malfunction (B2650)
DESCRIPTION When the front power seat switch LH does not receive a sensor signal despite forward or backward movement of the seat by power seat motor operation, this DTC is stored. DTC Code DTC Detection Condition Trouble ...

Transmitter ID not Registered (C2171/71)
DESCRIPTION The ID of each tire pressure warning valve and transmitter is registered to the tire pressure warning ECU. When the ECU detects that a transmitter ID code is not registered in the ECU, this DTC is stored. DTC Code Detec ...