Toyota Tundra 2005 Service - Repair - Maintenance page 2015

Hide thumbs Also See for Tundra 2005:

Table of Contents

Keep Engine Speed

SFI (2UZ−FE)

Hand−Held Tester

AIR−FUEL RATIO (A/F) SENSOR

Connect a hand−held tester to the Controller Area Net-

work Vehicle Interface Module (CAN VIM). Then connect

the CAN VIM to the Date Link Connector 3 (DLC3).

Turn the ignition switch ON.

Select the following menu items : Data List / A/FS B1 S1

and O2S B1 S2.

Warm up the A/F sensor by running the engine at 2,500

rpm for approximately 2 minutes.

Keep the engine speed at 2,500 rpm and confirm that the

display of the "A/FS B1 S1" is as shown in the illustration.

The illustration may slightly differ from the display on the

hand−held tester.

The waveform of the A/F sensor is displayed only on the

hannd−heldtester.

Confirm that the display of the "O2S B1 S2" changes be-

tween 0 and 1 V with the engine speed at 2,500 rpm.

The voltage output oscillates more than 8 times in 10

Perform the check immediately after warming up the

If the voltage variation could not be verified, warm up

the heated oxygen sensor again. If it could not be veri-

fied even after warming up the sensor again, check

the DTC No. (See page DI−507)