Toyota Celica 2005, Repair Manual

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DI − 390
− DIAGNOSTICS ENGINE (2ZZ − GE)
2005 CELICA (RM1131U)
TYPICAL ENABLING CONDITIONS
Item
Specification
Minimum Maximum
The monitor will run whenever this DTC is
not present
See page DI − 295
Case 1 (When temperature is fixed between 35
_
C (95
_
F) and 60
_
C (140
_
F)):
Cumulative idle off period 250 sec. −
Speed increased by 30 km/h (18.6 mph)
or more
10 times −
Engine coolant temperature 35
_
C (95
_
F) 60
_
C (140
_
F)
Intake air temperature after engine start − 6.7
_
C (20
_
F) −
Case 2 (When temperature is fixed at 60
_
C (140
_
F) or more):
Engine coolant temperature at engine
start
60 _ C (140 _ F) −
Intake air temperature − 6.7
_
C (20
_
F) −
Stop and go
Once or more (Stop for 20 sec. or more and accelerate to more than 70 km/h (43.5 mph)
within 40 sec.)
Steady driving and stop * Once or more
*: Vehicle is driven at 65 km/h (40.4 mph) or more for 30 sec. or more and the vehicle speed reaches 70 km/h
(43.5 mph). The vehicle is decelerated from 65 km/h (40.4 mph) to 3 km/h (1.86 mph) or less within 35 sec.
and stopped for 10 sec.
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria Threshold
Case1 (When temperature is fixed between 35 _ C (95 _ F) and 60 _ C (140 _ F)):
Change of engine coolant temperature value Less than 3
_
C (5.4
_
F)
Case2 (When temperature is fixed at 60 _ C (140 _ F) or more):
Change of engine coolant temperature value 1 _ C (1.8 _ F) or less
COMPONENT OPERATING RANGE
Standard Value
Engine coolant temperature changes with the actual engine coolant temperature
INSPECTION PROCEDURE
HINT:
S
If DTCs P0115, P0116, P0117, P0118 and P0125 are output simultaneously, the engine coolant tem-
perature sensor circuit may be open or shorted. Perform the troubleshooting of DTC P0115, P0117
or P0118 first.
S
Read freeze frame data using the hand−held tester or the OBD II scan tool . Freeze frame data records
the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can
help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air
− fuel
ratio was lean or rich, as well as other data from the time when a malfunction occurred.
Replace engine coolant temperature sensor.
588