Toyota Celica 2005 Repair Manual page 614

CONFIRMATION DRIVING PATTERN
Vehicle speed
25 mph
(40 km/h)
Ignition OFF
(a) (b)
(a) Connect the hand−held tester to the DLC3.
(b) Switch the hand−held tester from the normal mode to the check mode (See page DI−295).
(c) Start the engine and let the engine idle for 120 seconds or more.
(d) Drive the vehicle at 25 mph (40 km/h) or more for 40 seconds or more.
(e) Let the engine idle for 20 seconds or more. Perform steps (d) and (e) at least 3 times.
(f) Let the engine idle for 30 seconds.
HINT:
If a malfunction exists, the MIL will be illuminated on the multi information display during step (f).
NOTICE:
If the conditions in this test are not strictly followed, detection of a malfunction will not occur.
If you do not have the hand−held tester, turn the ignition switch OFF after performing steps from (c)
to (f), then perform steps from (c) to (f) again.
INSPECTION PROCEDURE
HINT:
Hand−held tester only:
Narrowing down the trouble area is possible by performing "A/F CONTROL" ACTIVE TEST (heated oxygen
sensor or other trouble areas can be distinguished).
Perform ACTIVE TEST using hand−held tester (A/F CONTROL).
HINT:
"A/F CONTROL" is the ACTIVE TEST which changes the injection volume to −12.5 % or +25 %.
(1) Connect the hand−held tester to the DLC3 on the vehicle.
(2) Turn the ignition switch ON.
(3) Warm up the engine by running the engine speed at 2,500 rpm for approximately 90 seconds.
(4) Select the item "DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / A/F CONTROL".
(5) Perform "A/F CONTROL" with the engine in an idle condition (press the right or left button).
RESULT:
Heated oxygen sensor reacts in accordance with increase and decrease of injection volume
+25 % → rich output: More than 0.5 V,
−12.5 % → lean output: Less than 0.4 V
2005 CELICA (RM1131U)
DIAGNOSTICS
40 seconds
or more
(d)
Idling(c)
120 seconds 20 seconds
or more
or more
− ENGINE (2ZZ−GE)
40 seconds 40 seconds
or more or more
(d)
(e)
(e)
20 seconds
or more
613
(d)
(f)
30 seconds
DI−415
A09299