Toyota 1 MZ–FE Manual page 598

EG2–598
Check IACV control VSV.
Check for open and short in harness and connector between EFI
main relay and ECM (See page IN–31).
Check and replace ECM (See page IN–36).
1MZ–FE ENGINE – CIRCUIT INSPECTION
(1) Remove IACV control VSV.
(2) Disconnect IACV control VSV connector.
(1) Measure resistance between terminals.
(2) Measure resistance between each terminal
and the body.
(1) Resistance: 26 – 46
(2) Resistance: 1 M
Check operation of IACV control VSV when bat–
tery positive voltage is applied to the terminals of
IACV control VSV connector or not.
Battery positive voltage is applied:
The air from pipe E is following out through pipe
F.
Battery positive voltage is not applied:
The air from pipe E is flowing out through the air
filter.
Replace IACV control VSV.
Repair or replace harness or connector.
at 202C (682F)
or higher.