Operation CHARM: Car repair manuals for everyone.
Home >> Toyota >> 2000 >> Landcruiser V8-4.7L (2UZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Testing and Inspection
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Oxygen Sensor: Testing and Inspection

HEATED OXYGEN SENSOR




COMPONENTS

INSPECTION




1. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS
a. Disconnect the oxygen sensor connector.
b. Using an ohmmeter, measure the resistance between terminals +B and HT

Resistance: 11 - 16 ohms at 20 °C (68 °F)

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

Torque:
44 Nm (450 kg.cm, 32 ft.lb) for sensor 1
20 Nm (200 kg.cm, 14 ft.lb) for sensor 2

c. Reconnect the oxygen sensor connector.

2. INSPECT OPERATION OF HEATED OXYGEN SENSORS
pro multis · About Operation CHARM