Corolla Sedan 4-Door L4-1587cc 1.6L DOHC MFI (1997)
Oxygen Sensor: Testing and Inspection
HEATED OXYGEN SENSOR INSPECTION
1. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSOR
Using an ohmmeter, measure the resistance between the terminals +B and HT.
Resistance: 11 - 160 at 20°C (68°F)
If the resistance is not as specified, replace the heated oxygen sensor.