Toyota 1 MZ–FE Manual page 519

INSPECTION PROCEDURE
TOYOTA hand–held tester
Connect the TOYOTA hand–held tester and read value of EGR
gas temperature value.
Check for open in harness or ECM.
1MZ–FE ENGINE – CIRCUIT INSPECTION
(1) Remove the fuse cover on the instrument
panel.
(2) Connect the TOYOTA hand–held tester to the
D LC 3.
(3) Turn ignition switch ON and TOYOTA hand–
held tester main switch ON.
Read EGR gas temperature on the TOYOTA hand–
held tester.
EGR gas temp.: 102C (502F) or more.
If there is an open circuit, the TOYOTA
hand–held tester indicates 3.1 2C (37.62F).
Go to step
(1) Disconnect the EGR gas temp. sensor con–
nector.
(2) Connect sensor wire harness terminals to–
gether.
(3) Turn ignition switch ON.
Read EGR gas temperature on the TOYOTA hand–
held tester.
EGR gas temp.: 159.32C (318.72F)
Confirm good connection at sensor.
If OK, replace EGR gas temp. sensor.
EG2–519