toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

ABOUT US
Engine Controls - A/F And O2 Sensor Identification|Page 690 > < Engine Controls - A/F And O2 Sensor Identification|Page 688

Highlander 4WD L4-2.4L (2AZ-FE) (2001)

Page 3
background image

A/F and O2 Sensor Identification

-

Sensor 1 (S1) refers to the sensor that is located before the catalytic converters. 

-

Sensor 2 (S2) refers to the sensor that is located after the catalytic converters.

Engine Controls - A/F And O2 Sensor Identification|Page 690 > < Engine Controls - A/F And O2 Sensor Identification|Page 688