Toyota 1 MZ–FE Manual page 533

OBDII scan tool (excluding TOYOTA hand–held tester)
Check resistance of EGR gas temp. sensor.
Check for short in harness and connector between EGR gas temp.
sensor and ECM (See page IN–31)..
Check the VSV for EGR (See page EG2–525, step
Check operation of the VSV for EGR (See page EG2–532, step
Check for open in harness and connector between J/B No.2 and
ECM (See page IN–31).
Check and replace ECM (See page IN–36).
1MZ–FE ENGINE – CIRCUIT INSPECTION
Disconnect EGR gas temp. sensor connector (See
page EG2–303) .
Measure resistance between terminals of EGR gas
temp. sensor connector.
Resistance: 2.5 k
If there is short circuit, ohmmeter indicates 200W
or less.
Replace EG R gas temp. sensor.
Repair or replace harness or connector.
Check EGR valve (See page EG2–211).
Replace VSV for EG R.
Repair or replace harness or connector.
or more.
(Not immediately after driving)
EG2–533