Toyota Celica 2005 Repair Manual page 820

2 Check VSV for secondary air injection system.
Air Injection System Hose No. 6
NG
DIAGNOSTICS − ENGINE (2ZZ−GE)
PREPARATION:
(a) Connect the hand−held tester to the DLC3 on the vehicle.
(b) Turn the ignition switch ON and push the hand−held tes-
ter main switch ON.
(c) Disconnect the air injection system hose No. 6.
(d) Start the engine.
(e) Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / ACTIVE TEST/SECOND AIR VSV / ALL or USER
DATA (press the right or left button).
A21335
NOTICE:
When selecting USER DATA, select SECONDARY AIR" and
"SECOND AIR VSV" on the screen by pressing the "YES"
button on the tester.
HINT:
When operating the VSV in the secondary air system, the air
pump is also operated at the same time.
CHECK:
Put your hand at the disconnected hose end, and check that the
exhaust gas pressure pulsation is applied to your hand when
turning on the VSV for air switching valve with the ACTIVE
TEST. And also check that the exhaust gas pressure pulsation
is not applied to your hand when turning off the VSV for air
switching valve.
NOTICE:
This test allows the technician to operate the VSV for only
5 seconds. If you perform the test again, more than 30 se-
conds interval must be required after the previous test is
done.
HINT:
"SECONDARY AIR (air pump)" means the signal output from
the ECM to operate the air pump.
OK Go to step 9.
819
DI−621