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:

Removal
REMOVAL PROCEDURE 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system (See page ). NOTICE: When disconnecting the cable, s ...

Test Mode Procedure
TEST MODE PROCEDURE 1. PERFORM SIGNAL CHECK HINT: When entering signal check mode, the tire pressure warning ECU stores all the signal check DTCs first. After completing the signal check for each inspection item, the DTCs for systems that ar ...