Heated Oxygen Sensor: Inspection
- INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS
- Disconnect the oxygen sensor connector.
- Using an ohmmeter, measure the resistance between terminal +B and HT.
Resistance: 11 - 16 Ω at 20°C (68°F)
If the resistance is not as specified, replace the sensor.
Torque:
44 N.m (450 kgf.cm, 32 ft.lbf) for sensor 1
20 N.m (200 kgf.cm, 14 ft.lbf) for sensor 2
- Reconnect the oxygen sensor connector.
- INSPECT OPERATION OF HEATED OXYGEN SENSORS (See DTC P0130: OXYGEN SENSOR CIRCUIT (BANK 1 SENSOR CIRCUIT (BANK 1 SENSOR 1), DTC P0150 OXYGEN SENSOR CIRCUIT (BANK 2 SENSOR 1), DTC P2195 OXYGEN SENSOR SIGNAL STACK LEAN (BANK 1 SENSOR 1), DTC P2196 OXYGEN SENSOR SIGNAL STACK RICH (BANK 1 SENSOR 1), DTC P2197 OXYGEN SENSOR SIGNAL STACK LEAN (BANK 2 SENSOR 1), DTC P2198 OXYGEN SENSOR SIGNAL STACK RICH (BANK 2 SENSOR 1) and DTC P0136: OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 1 SENSOR 2), DTC P0156 OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 2 SENSOR 2) )