Heated Oxygen Sensor: Inspection

INSPECT OXYGEN SENSOR

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

Standard resistance

Bank 1

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
2 (HT1B) - 1 (+B)	20°C (68°F)	11 to 16 Ω
2 (HT1B) - 3 (E2)	Always	10 kΩ or higher

Bank 2

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
1 (HT2B) - 2 (+B)	20°C (68°F)	11 to 16 Ω
1 (HT2B) - 4 (E2)	Always	10 kΩ or higher

If the resistance is not as specified, replace the heated oxygen sensor.

Fig 1: Identifying Oxygen Sensor Connector Terminals