Toyota 1 MZ–FE Manual page 531

Check for short in harness or ECM.
Check and replace ECM (See page IN–36).
Check the VSV for EGR.
1MZ–FE ENGINE – CIRCUIT INSPECTION
(1) Remove glove compartment
(See page EG2–309) .
(2) Disconnect the E9 connector of ECM.
HINT: EGR gas temp. sensor is disconnected.
Read EGR gas temp. on the TOYOTA
hand–held tester.
EGR gas temp.: 3.1 2C (37.62F)
Repair or replace harness or connector.
Select the active test mode on the TOYOTA hand–
held tester.
Check operation of EGR VSV, when it is operated
by the TOYOTA hand–held tester.
EGR system is OFF:
The air from pipe E flows out through the air
filter.
EG R system is ON:
The air from pipe E flows out through pipe G.
Check EGR valve (See page EG2–211).
EG2–531