Toyota RAV4 Service Manual: Heated oxygen sensor
Components
Removal
- Disconnect cable from negative battery terminal
Caution:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
- Remove heated oxygen sensor (for bank 1 sensor 2)
- Disconnect the sensor connector.
- Using sst, remove the sensor from the front exhaust pipe.
Sst 09224-00010
Inspection
- Inspect heated oxygen sensor (for bank 1 sensor 2)
- Measure the resistance of the sensor.
Standard resistance 
If the resistance is not as specified, replace the sensor.
Installation
- Install heated oxygen sensor (for bank 1 sensor 2)
- Using sst, install the sensor to the front exhaust pipe.
Sst 09224-00010
Torque: 40 n*m (408 kgf*cm, 30 ft.*Lbf) for use with sst
44 N*m (449 kgf*cm, 32 ft.*Lbf) for use without sst
Hint:
- Use a torque wrench with a fulcrum length of 30 cm (11.81 In.).
- Make sure sst and wrench are connected in a straight line.
- Connect the sensor connector.
- Connect cable to negative battery terminal
- Check for exhaust gas leaks
Air fuel ratio sensor
Components
On-vehicle inspection
Check air fuel ratio compensation system
Connect the intelligent tester to the dlc3.
Turn the ignition switch on.
Select the following menu item ...
Fuel tank cap
Inspection
Inspect fuel tank cap assembly
Visually check that the cap and gasket are not
deformed or damaged.
If the result is not as specified, replace the cap
assembly or gaske ...
Other materials:
Problem symptoms table (2006/01- )
Hint:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms
are listed in order of probability in the "suspected area"
column of the table. Check each symptom by checking the
suspected areas in the order they are listed. R ...
System check
Hint:
Performing a system check enables the system,
which consists of multiple actuators, to be operated
without removing any parts. In addition, it can show
whether or not any dtcs are set, and can detect
potential malfunctions in the system. The system
check can be performed with the intelli ...
Engine coolant temperature circuit range / performance problem
Description
Refer to dtc p0115 (see page es-105).
Monitor description
Engine coolant temperature (ect) sensor cold start monitor
When a cold engine start is performed and then the engine is warmed up, if
the ect sensor value does
not change, it is determined that a malfunction has occ ...