Heated Oxygen Sensor: Inspection: Inspection

INSPECT HEATED OXYGEN SENSOR

Fig 1: Measuring Resistance Between Air Fuel Ratio Sensor Terminals

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Check the resistance.

Using an ohmmeter, measure the resistance between the terminals.

Standard resistance

Tester Connection	Specified Condition
1 (HT1B) - 2 (+B)	11 to 16 Ω at 20°C (68°F)
1 (HT1B) - 4 (E2)	10 kΩ or higher

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