Toyota Celica 2005 Repair Manual page 349

DI−150
TYPICAL ENABLING CONDITIONS
Item
The monitor will run whenever this DTC is
not present
Battery voltage
Fuel system
Throttle position learning
Either of the following conditions is met:
1. Engine RPM
2. Intake air amount per revolution
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria
Purge−cut
Either of the following conditions is met:
1. Average between short−term fuel trim and long−term fuel
trim
2. Average between short−term fuel trim and long−term fuel
trim
WIRING DIAGRAM
Refer to DTC P0130 on page DI−112.
INSPECTION PROCEDURE
HINT:
Hand−held tester only:
Determining the trouble area is possible by performing "A/F CONTROL" ACTIVE TEST (heated oxygen sen-
sor or other trouble areas can be distinguished).
Perform ACTIVE TEST using a 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 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 idling (press the right or left button).
RESULT:
Heated oxygen sensor reacts in accordance with increase and decrease of the injection volume
+25 % → rich output: More than 0.5 V,
−12.5 % → lean output: Less than 0.4 V
2005 CELICA (RM1131U)
DIAGNOSTICS − ENGINE (1ZZ−FE)
Minimum
11 V
−
0.14 g/sec.
348
Specification
Maximum
See page DI−3
Closed−loop
Completed
Condition 1 or 2
1,100 rpm
Threshold
Executing
Condition 1 or 2
35% or more (varies with ECT)
−35% or less (varies with ECT)
−
−