RAV4 2WD V6-3.5L (2GR-FE) (2006)
Oxygen Sensor: Testing and Inspection
Air-Fuel Ratio (A/F) Sensor
Component Inspection
INSPECTION
1. INSPECT AIR FUEL RATIO SENSOR (for Sensor 1)
a. Measure the resistance of the sensor.
If the resistance is not as specified, replace the sensor.
On-Vehicle Inspection
ON-VEHICLE INSPECTION
1. CHECK AIR FUEL RATIO COMPENSATION SYSTEM
a. Connect the intelligent tester to the DLC3.
b. Turn the ignition switch ON.
c. Select the following menu items: Data List/A/FS B1 S1, A/FS B2 S1, O2S B1 S2 and O2S B2 S2.
d. Warm up the A/F sensor with the engine speed at 2,500 rpm for approximately 2 minutes.
e. Maintain the engine speed at 2,500 rpm and confirm that the display of "A/FS B1 S1" and "A/FS B2 S1" is as shown in the illustration.
HINT:
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The illustration may slightly differ from the display on the intelligent tester.
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Only the intelligent tester displays the waveform of the A/F sensor.