Toyota 1 MZ–FE Manual page 461

4
Check for short in harness and ECM.
5
Check for short in harness or ECM.
Check and replace ECM (See page IN–36).
1MZ–FE ENGINE – CIRCUIT INSPECTION
(1) Disconnect the engine coolant temp. sensor
connector.
(2) Turn ignition switch ON.
Read temperature value on the OBDII scan tool or
TOYOTA hand–held tester.
Temperature value: – 40
Replace engine coolant temp. sensor.
(1) Remove glove compartment.
(See page EG2–309)
(2) Disconnect the E8 connector of ECM.
HINT: Engine coolant temp. sensor connector is dis–
connected.
(3) Turn ignition switch ON.
Read temperature value on the OBDII scan tool or
TOYOTA hand–held tester.
Temperature value: –402C (–402F)
Repair or replace harness or connector.
EG2–461
2 2
C (– 40 F)