Toyota Celica 2005 Repair Manual page 411

DI−212
12 Check for open and short in harness and connector between EFI main relay
(Marking: EFI) and CCV, and CCV and ECM (See page IN−30).
OK
Replace ECM (See page SF−78).
13 Check
pressure switching valve
ON
Air
E
F
VSV is ON
BE6653
A10143
A10144
NG
14 Check operation of pressure switching valve (See page SF−65).
OK
2005 CELICA (RM1131U)
DIAGNOSTICS
PREPARATION:
(a)
Air
(b)
E
(c)
F
VSV is OFF
(d)
A10801
CHECK:
Check the VSV operation when it is operated by the hand−held
tester.
OK:
− ENGINE (1ZZ−FE)
NG Repair or replace harness or connector.
.
Turn the ignition switch ON and push the hand−held tes-
ter main switch ON.
Select the "ENHANCED OBD II / ACTIVE TEST" mode on
the hand−held tester.
Select the item "TANK BYPASS VSV / ALL" in the AC-
TIVE TEST and operate TANK BYPASS VSV (Press the
right or left button).
Check the VSV operation when it is operated by the
hand−held tester.
VSV is ON:
Air from port E flows out through port F.
VSV is OFF:
Air does not flow from port E to port F.
OK Go to step 16.
NG Replace pressure switching valve.
410