Toyota Celica 2005 Repair Manual page 998

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) is detected. (2−trip detection logic)
(a) After 12 seconds of the engine start, the temp. of the atmo-
P0711 sphere and that of the engine coolant is more than −10°C.
(b) After a normal driving for over 18 minutes and 20 seconds
and 9 km (6 miles), the ATF temp. is less than 20°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 20_C (68_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 18 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
2005 CELICA (RM1131U)
DIAGNOSTICS
Transmission Fluid Temperature Sensor "A"
Performance
DTC Detecting Condition
P0711
Main
Sub
Continuous
3 sec.
2 driving cycles
None
− AUTOMATIC TRANSAXLE (U341E)
S Transaxle fluid level
S ATF temperature sensor
ATF temperature sensor /Rationality check
ATF temperature sensor (TFT sensor)
IAT sensor, ECT sensor
997
Trouble Area
DI−797
DIC6A−02