On-Vehicle Inspection

INSPECT HEATED OXYGEN SENSOR

Fig 1: Identifying Heated Oxygen Sensor Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard resistance

Tester Connection	Condition	Specified Condition
1 (HT) and 2 (+B)	20°C (68°F)	11 to 16 Ω

If the result is not as specified, replace the sensor.