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:

Inspection
INSPECTION PROCEDURE 1. INSPECT BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY (a) Check that the motor gear rotates smoothly as follows. NOTICE: Do not apply positive (+) battery voltage to any terminals except terminal 2 (B) to avoid ...

Parking Brake Switch Circuit
DESCRIPTION This circuit is from the parking brake switch assembly to the radio and display receiver assembly. WIRING DIAGRAM PROCEDURE 1. CHECK BRAKE WARNING LIGHT (a) Check that the brake warning light comes on when t ...