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:

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART DTC Code Detection Item See page 11 Short in Motor LH 12 Short in Motor RH 21 Short to ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. REMOVE FRONT WHEEL 2. INSPECT FRONT SUSPENSION LOWER NO. 1 ARM (a) Install the hub nuts to the disc. (b) Using a dial indicator, check the lower ball joint for excessive play by pushing the hub nuts up and ...