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. WIRELESS DOOR LOCK CONTROL SYSTEM DESCRIPTION (a) This system locks/unlocks the vehicle doors remotely. The wireless control system has the following features: The door control receiver performs the code identification procedu ...

Unable to Unlock Steering Wheel (Engine cannot Start)
DESCRIPTION The power management control ECU supplies the power to activate the motor of the steering lock actuator assembly. The steering lock actuator activates the steering lock motor and moves the lock bar into the steering column to lock the steerin ...