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Home >> Lexus >> 2015 >> ES 350 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System - Diagnostic Codes & Circuit Tests >> Automatic Transaxle System >> DTC P0989: Transmission Fluid Pressure Sensor / Switch "E" Circuit Low; DTC P0990: Transmission Fluid Pressure Sensor / Switch "E" Circuit High [08/2014 - ] >> Typical Enabling Conditions
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Typical Enabling Conditions

ALL:

The monitor will run whenever this DTC is not present.
(Not circuit malfunction)
P0712, P0713 (ATF temperature sensor circuit (TFT sensor))
P0115, P0117, P0118 (ECT sensor circuit)
P0715, P0717 (Turbine speed sensor circuit)
P0791, P0793 (Intermediate shaft speed sensor circuit)
P0748 (Shift solenoid valve SL1 circuit)
P0778 (Shift solenoid valve SL2 circuit)
P0798 (Shift solenoid valve SL3 circuit)
P2810 (Shift solenoid valve SL4 circuit)
P2759 (Shift solenoid valve SLU circuit)
P2769, P2770 (Shift solenoid valve SL circuit)
P0327, P0328, P0332, P0333 (KCS sensor circuit)
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P0604, P0606, P060A, P060B, P060D, P060E, P0657, P1607, P2102, P2103, P2111, P2112, P2118, P2119, P2135 ((ETCS) Electronic throttle control system)
U0100 (CAN communication system)
ECT (Engine coolant temperature) 40°C (104°F) or more
Spark advance from Max. retard timing by KCS control 0°CA or more
Transmission range "D"
TFT (Transmission fluid temperature) -10°C (14°F) or more
TFT (Transmission fluid temperature) sensor circuit No circuit malfunction
ECT (Engine coolant temperature) sensor circuit No circuit malfunction
Turbine speed sensor circuit No circuit malfunction
Intermediate shaft speed sensor circuit No circuit malfunction
Shift solenoid valve SL1 circuit No circuit malfunction
Shift solenoid valve SL2 circuit No circuit malfunction
Shift solenoid valve SL3 circuit No circuit malfunction
Shift solenoid valve SL4 circuit No circuit malfunction
Shift solenoid valve SLU circuit No circuit malfunction
Shift solenoid valve SL circuit No circuit malfunction
(KCS) Knock control sensor circuit No circuit malfunction
(ETCS) Electronic throttle control system Not system down
CAN communication system Not system down
Engine Starting
TCM selected gear Not 1st
Vehicle speed 15.5 mph (25 km/h) or more
Turbine speed/Output speed (NT/NO) with 1st 3.304 to 7.724
Turbine speed/Output speed (NT/NO) with 2nd 1.901 to 2.340
Turbine speed/Output speed (NT/NO) with 3rd 1.399 to 1.649
Turbine speed/Output speed (NT/NO) with 4th 0.998 to 1.138
Turbine speed/Output speed (NT/NO) with 5th 0.705 to 0.836
Turbine speed/Output speed (NT/NO) with 6th 0.568 to 0.695
P0989:

TCM lock-up command ON
Engine speed - Turbine speed Less than 35 rpm
Throttle valve opening angle 7% or more
Vehicle speed Less than 74.6 mph (120 km/h)
Shift solenoid valve SLU Not ON malfunction
P0990:

TCM indicated pressure valve of SLU Less than 4 kPa
TCM lock-up command OFF
Shift solenoid valve SLU Not malfunction
Shift solenoid valve SL Not OFF malfunction