Toyota Celica 2005 Repair Manual page 911

DI−710
DTC P0711
CIRCUIT DESCRIPTION
The ATF temperature sensor converts fluid temperature into a resistance value which is input into the ECM.
DTC No.
Both (a) and (b) are detected: (2−trip detection logic)
(a) After 12 sec. of engine start, temp. of atmosphere and that
of engine coolant is more than −10°C
P0711
(b) After normal driving for over 17 min. and 9 km (6 miles),
ATF temp. is less than 10°C
MONITOR DESCRIPTION
The ATF temperature sensor converts the ATF temperature to an electrical resistance value. Based on the
resistance, the ECM determines the ATF temperature and detects an open or short in the ATF temperature
circuit or a fault of the ATF temperature sensor.
After running the vehicle for a certain period, the ATF temperature should increase. If the ATF temperature
is below 10_C (50_F) after running the vehicle for a certain period, the ECM interprets this as a fault, and
turns on the MIL.
When the ATF temperature is 110_C (230_F) or more after 17 minutes of engine cold start, the ECM also
determines this as a fault, turns on the MIL, and stores the DTC.
MONITOR STRATEGY
Related DTCs
Required sensors/Components
Required sensors/Components
Frequency of operation
Duration
MIL operation
Sequence of operation
TYPICAL ENABLING CONDITIONS
Item
The monitor will run whenever this DTC is
not present.
ECT (Engine coolant temperature)
Time after engine start
TFT (transmission fluid temperature) sen-
sor circuit
ECT sensor circuit
IAT (Intake air temperature) sensor circuit
Time after engine start
Driving distance after engine start
2005 CELICA (RM1131U)
DIAGNOSTICS
Transmission Fluid Temperature Sensor "A"
Performance
DTC Detecting Condition
P0711
Main
Sub
Continuous
3 sec.
2 driving cycles
None
Minimum
−15°C (5°F) or more
16 min. and 40 sec. or more
9 km (5.6 mile) or more
− AUTOMATIC TRANSAXLE (U240E)
S Open or short in ATF temperature sensor circuit
S ATF temperature sensor
S ECM
ATF temperature sensor "A"/Rationality check
ATF temperature sensor (TFT sensor)
ECT sensor, IAT sensor
Specification
See page DI−669
Not circuit malfunction
Not circuit malfunction
Not circuit malfunction
18 min. and 20 sec.
910
Trouble Area
Maximum
−
−
−
DIC6D−02