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Home >> Toyota >> 2017 >> Highlander LE Plus, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (UA80F) - Diagnostic Codes (P0795-12 - U1103-87) (Except Hybrid) >> Automatic Transaxle System >> DTC P2756-7F: Torque Converter Clutch Pressure Control Solenoid Control Actuator Stuck Off [11/2016 - ] >> Typical Enabling Conditions

Typical Enabling Conditions

ALL

The monitor will run whenever the following DTCs are not stored P0717, P07BF, P07C0 (Turbine speed sensor circuit)
P0793, P07C5, P07C6 (Intermediate shaft speed sensor circuit)
P0962, P0963 (Solenoid (SL1) valve circuit)
P0966, P0967 (Solenoid (SL2) valve circuit)
P0970, P0971 (Solenoid (SL3) valve circuit)
P2814, P2815 (Solenoid (SL4) valve circuit)
P281D, P281E (Solenoid (SL5) valve circuit)
P08C1, P08C2 (Solenoid (SL6) valve circuit)
P2764, P2763 (Solenoid (SLU) valve circuit)
P2769, P2770 (Solenoid (SL) valve circuit)
P2720, P2721 (Solenoid (SLT) valve circuit)
P0712, P0713 (ATF temperature sensor circuit (TFT sensor))
P0117, P0118 (ECT sensor circuit)
P0335, P0337, P0338 (Crankshaft Position Sensor circuit)
P0327, P0328, P0332, P0333 (KCS sensor circuit)
P0121, P0122, P0123, P0222, P0223, P0604, P0606, P060A, P060B, P060D, P060E, P061E, P0657, P0658, P2102, P2103, P2111, P2112, P2119, P2135 ((ETCS) Electronic throttle control system)
U0100 (CAN communication system)
Shift position "D", "not R" and "not N"
Elapsed time since shift lever moved from "N" to "D" 4 sec. or more
ATF temperature -10°C (14°F) or more
Engine Starting
OFF MALFUNCTION

Fail-safe function does not operate due to the following malfunctions: -
Solenoid (SLT) valve ON malfunction (P2714)
Solenoid (SLU) valve OFF or ON malfunction (P2757)
Solenoid (SL) valve ON malfunction (P0741)
ECT 40°C (104°F) or more
Spark advance from MAX. retard timing by KCS control 0 °CA or more
ECM selected gear Actual gear
Vehicle speed 10 km/h (6.2 mph) or more
ECM commanded solenoid (SL) valve state OFF
ECM commanded pressure value using solenoid (SLU) valve
(3 sec. or more)
-
- when A/C off 515 kPa (5.25 kgf/cm2 , 74.7 psi) or more
- when A/C on 515 kPa (5.25 kgf/cm2 , 74.7 psi) or more
ON MALFUNCTION (A)

Fail-safe function does not operate due to the following malfunctions: -
Solenoid (SLT) valve ON malfunction (P2714)
Solenoid (SLU) valve OFF or ON malfunction (P2757)
Solenoid (SL) valve ON malfunction (P0741)
ECT 40°C (104°F) or more
Spark advance from MAX. retard timing by KCS control 0 °CA or more
ECM selected gear Actual gear
Vehicle speed 10 km/h (6.2 mph) or more and less than 60 km/h (37.3 mph)
Quick engagement detection Fixed
ECM commanded pressure value using solenoid (SLU) valve 0 kPa (0 kgf/cm2 , 0 psi) or less
Time since ECM commanded solenoid (SL) valve OFF 0.15 sec. or more
Throttle valve opening angle 5% or more at turbine speed 3000 rpm
(Conditions vary with turbine speed)
Calculated load value -
- when A/C off 15% or more at turbine speed 2000 rpm
(Conditions vary with turbine speed)
- when A/C on 20% or more at turbine speed 2000 rpm
(Conditions vary with turbine speed)
ON MALFUNCTION (B)

Fail-safe function does not operate due to the following malfunctions: -
Solenoid (SL1) valve OFF or ON malfunction (P0746)
Solenoid (SL2) valve OFF or ON malfunction (P0776)
Solenoid (SL3) valve OFF or ON malfunction (P0796)
Solenoid (SL4) valve OFF or ON malfunction (P2808)
Solenoid (SL5) valve OFF or ON malfunction (P2817)
Solenoid (SL6) valve OFF or ON malfunction (P08BB)
Solenoid (SLT) valve OFF malfunction (P2714)
Solenoid (SLU) valve ON malfunction (P2757)
Solenoid (SL) valve ON malfunction (P0741)
All shift solenoid Not being stopped
Neutral command flag Not met
Vehicle stop check Fixed
ECM selected gear 3rd, 4th, 6th or 7th
ON MALFUNCTION (C)

ECM selected gear 3rd, 4th, 6th or 7th

HINT: 

Actual gear: 

QUICK ENGAGEMENT DETECTION:

Engine speed - Turbine speed Less than 50 rpm
Time since ECM commanded solenoid (SL) valve OFF Less than 0.28 sec.
VEHICLE STOP CHECK:

Vehicle speed 0 km/h (0 mph) or less
NEUTRAL STATE FLAG:

Turbine speed - output speed x (ECM selected gear) 1000 rpm or more
NEUTRAL COMMAND FLAG:

Engine speed 7200 rpm or more
Turbine speed 7200 rpm or more