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:

Relay(for Magnet Clutch Control)
On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. REMOVE MAGNET CLUTCH RELAY (a) Remove the magnet clutch relay from the engine room relay block. Text in Illustration *1 Magnet Clutch Relay ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK NO. 1 AIR CONDITIONING AMPLIFIER ASSEMBLY (a) Disconnect the F42 No. 1 air conditioning amplifier assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. ...