Toyota Celica 2005 Repair Manual page 814

INSPECTION PROCEDURE
HINT:
To check the pressure condition in the secondary air passage, the hand−held tester is available.
(a) Connect the hand−held tester to the DLC3 on the vehicle.
(b) Turn the ignition switch ON and push the hand−held tester main switch ON.
(c) Start the engine.
(d) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / SECOND AIR VSV
/ ALL or USER DATA (press the right or left button).
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.
(e) Check that the SECONDARY AIR, SECOND AIR VSV and 2ND AIR PRESS on the hand−held tester
indicate the same conditions as the chart below.
NOTICE:
This test allows the technician to operate the VSV for only 5 seconds. If you perform the test again,
more than 30 seconds interval must be required after the previous test is done.
Tester Operation
VSV is ON
VSV is OFF
HINT:
*1: Means the signal output from the ECM to operate the air pump.
*2: Means the signal output from the ECM to operate the VSV.
*3: Means the difference between the air pressure inside the air pressure sensor and the atmospheric pres-
sure. When the pressure inside the secondary air injection system is equal to the atmospheric pressure, the
hand−held tester displays "0 kPa".
1 Check for open and short in harness and connector between pressure sensor
and ECM (See page IN−30).
OK
2005 CELICA (RM1131U)
DIAGNOSTICS −
Specified Condition
SECONDARY AIR (*1)
ON
OFF
NG
813
ENGINE (2ZZ−GE)
SECOND AIR VSV (*2)
ON
OFF
Repair or replace harness and connector.
DI−615
2ND AIR PRESS (*3)
2.5 kPa or more
less than 2.5 kPa