Toyota 1 MZ–FE Manual page 599

INSPECTION PROCEDURE
OBDII scan tool (excluding TOYOTA hand–held tester)
Check IACV control VSV (See page EG2–598, step 2)
Check voltage between terminal ACIS of ECM connector and
body ground.
Check for vacuum tank (See page EG2–277).
Check and replace ECM (See page IN–36).
1MZ–FE ENGINE – CIRCUIT INSPECTION
Replace IACV control VSV.
(1) Remove glove compartment
(See page EG2–309).
(2) Turn ignition switch ON.
Measure voltage between terminal ACIS of ECM
connector and body ground.
Voltage: 9 –14 V
Check for open and short in harness and
connector between EFI main relay and
ECM (Seepage IN–31).
Repair or replace.
EG2–599