IS 250 AWD V6-2.5L (4GR-FSE) (2006)
b. Connect the intelligent tester to the DLC3.
c. Turn the engine switch on (IG).
d. Select the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / A/FS B1 S1, A/ FS B2 S1, O2S B1 S2 and O2S B2 S2.
e. Warm up the A/F sensor by running the engine at 2, 500 rpm for approximately 2 minutes.
f.
Keep the engine speed at 2,500 rpm and confirm that the displays of "A/FS B1 S1" and "A/FS B2 S1" are 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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The waveform of the A/F sensor is displayed only on the intelligent tester.
g. Check the displays of "O2S B1 S2" and "O2S B2 S2" with the engine speed at 2,500 rpm.
Standard condition:
Displays show that each voltage fluctuates between 0 V and 1 V.
NOTE:
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Perform the check immediately after warming up the engine.
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If the voltage oscillation could not be verified, warm up the heated oxygen sensor again. If it is still not possible to verify, perform DTC
check.