SF17R–03

B09732

HT+BOhmmeter

SF–54–SFI (2RZ–FE, 3RZ–FE) HEATED OXYGEN SENSOR

1364Author: Date:

2003 TOYOTA TACOMA (RM1002U)

INSPECTION1. INSPECT HEATER RESISTANCE OF HEATED OXY-

GEN SENSOR(a) Disconnect the sensor connector.(b) Using an ohmmeter, measure the resistance between ter-

minals +B and HT.Resistance:

at 20°C (68°F) 11 – 16 Ω

at 800°C (1,472°F) 23 – 32 Ω

If the resistance is not as specified, replace the sensor.Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)

(c) Reconnect the oxygen sensor connector.2. Bank 1 Sensor 2:

INSPECT OPERATION OF HEATED OXYGEN SEN-SOR (See page DI–64)