Bank 1 and 2 Sensor 1

OXYGEN SENSOR HEATER CIRCUIT INSPECTION (BANK 1,2 SENSOR 1)

1. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS
(BANK 1, 2 SENSOR 1)
(a) Disconnect the oxygen sensor connectors.





(b) Using an ohmmeter, measure the resistance between the terminals +B and HT.

Resistance: 11 - 16 Ohms 20°C (68°F)

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

Torque: 44 N.m (450 kgf.cm, 33 ft.lbf)

(c) Reconnect the oxygen sensor connectors.