Toyota Celica 2005 Repair Manual page 742

18 Check operation of CCV (See page SF−63).
OK
19 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).
20 Check pressure switching valve.
Air
E
F
OFF
NG
2005 CELICA (RM1131U)
DIAGNOSTICS
PREPARATION:
(a)
TBP
(b)
CHECK:
Check the pressure switching valve function.
OK:
Air
E
F
ON
A19641
− ENGINE (2ZZ−GE)
NG Replace CCV.
NG Repair or replace harness or connector.
Remove the ECM cover.
Turn the ignition switch ON.
(1) Connect the terminal TBP of the ECM connector
and body ground (ON).
(2) Disconnect the terminal TBP of the ECM connector
and body ground (OFF).
(1) Pressure switching vavle is ON:
Air from port E flows out through port F.
(2) Pressure switching valve is OFF:
Air does not flow from port E to port F.
OK Go to step 23.
741
DI−543