Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Pressure Control Solenoid "D" Actuator Stuck Off (P27137F)

DESCRIPTION

Based on signals from the accelerator position sensor and transmission revolution sensors (NT, NC3 and NC), the ECM controls the shift solenoid valve SLT using a predetermined current. As a result, the line pressure is adjusted to a pressure that is appropriate for the throttle angle and engine output. Based on the rotation speed signals from the transmission revolution sensors (NT, NC3 and NC), the ECM calculates the heat level of the friction material, and detects clutch slippage, etc.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P27137F

Pressure Control Solenoid "D" Actuator Stuck Off

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other

  • Engine coolant temperature is 40°C (104°F) or higher, ATF temperature is -10°C (14°F) or higher, and the vehicle is being driven with the shift lever in D (no malfunctions are detected in the shift solenoid valves SL1, SL2, SL3, SL4, SL5, S1 and SLT, transmission revolution sensors (NT, NC3, NC), coolant temperature sensor, oil temperature sensor, knock control sensor, electronic throttle or CAN2)
  • The transmission revolution sensor (NT) value exceeds the specified speed for each gear.
  • Malfunction status continues for 0.5 seconds or more
  • 2-trip detection logic
  • Shift solenoid valve S1
  • Shift solenoid valve SLT
  • Shift solenoid valve SL1
  • Shift solenoid valve SL2
  • Shift solenoid valve SL3
  • Shift solenoid valve SL4
  • Shift solenoid valve SL5
  • Transmission valve body assembly
  • Torque converter assembly
  • Automatic transaxle assembly (clutch, brake, gear, etc.)

Comes on

DTC stored

SAE Code:

P2714

MONITOR DESCRIPTION

The ECM calculates the amount of heat absorbed by the clutch discs and brake discs based on the difference in speed (clutch slippage) between the turbine (input) and output shaft. If the amount of heat absorption exceeds the specified value, the ECM will illuminate the MIL and store this DTC.

If the shift solenoid valve SLT is stuck ON, the line pressure and clutch engagement force will decrease.

NOTICE:

If driving continues under these conditions, the clutches will burn out and the vehicle will no longer be drivable.

MONITOR STRATEGY

Related DTCs

P2714: Shift solenoid valve SLT/ON malfunction

Required sensors/Components

Shift solenoid valve SLT

Frequency of operation

Continuous

Duration

Immediate

MIL operation

2 driving cycles

Sequence of operation

None

TYPICAL ENABLING CONDITIONS

All

The monitor will run whenever this DTC is not present.

(Not circuit malfunction)

P0717, P07BF, P07C0 (Turbine speed sensor circuit)

P0793, P07C5, P07C6 (Intermediate shaft speed sensor circuit)

P07C1, P07C2, P2767 (Input speed sensor circuit)

P0335, P0337, P0338 (Crankshaft Position Sensor "A" circuit) (This condition applies only if using fail-safe)

P0712, P0713 (ATF temperature sensor circuit (TFT sensor))

P0748 (Shift solenoid valve SL1 circuit)

P0778 (Shift solenoid valve SL2 circuit)

P0798 (Shift solenoid valve SL3 circuit)

P2810 (Shift solenoid valve SL4 circuit)

P2819 (Shift solenoid valve SL5 circuit)

P0973, P0974 (Shift solenoid valve S1 circuit)

P2716 (Shift solenoid valve SLT circuit)

P0115, P0117, P0118 (ECT sensor circuit)

P0327, P0328, P032C, P032D, P0332, P0333, P033C, P033D (KCS sensor circuit)

P0120, P0121, P0122, P0123, P0220, P0222, P0223, P0604, P0606, P0607, P060A, P060B, P060D, P060E, P0657, P1607, P2102, P2103, P2111, P2112, P2118, P2119, P2135 ((ETCS) Electronic throttle control system)

U0100 (CAN communication system)

NSW switch

"D" and "not R" and "not N"

Duration time from shifting "N" to "D"

4 sec. or more

ATF temperature

-10°C (14°F) or more

Engine

Starting

ON malfunction (A)
  • Start Conditions of J1summax Calculation

    Turbine speed

    270 rpm or more

    TCM selected gear

    1st

    Turbine speed - Output speed x 1st gear ratio

    150 rpm or more

    Calculated input torque when the first time of following condition met

    Specified value

    Turbine speed - Output speed x 1st gear ratio

    150 rpm or more

    Engine speed - Turbine speed

    117 rpm or more

    Following conditions is met: (a) or (b)

     

    (a) Output speed

    More than 0 rpm

    (b) Input speed

    Less than 60 rpm

    Finish Conditions of J1summax Calculation

    Following conditions is met: (a), (b), (c) or (d)

     

    (a) Turbine speed

    Less than 270 rpm

    (b) TCM selected gear

    Not 1st

    (c) Duration time while following condition met

    0 sec. or more

    Turbine speed - Output speed x 1st gear ratio

    Less than 50 rpm

    (d) Pass condition met

     
ON malfunction (B)
  • Start Conditions of J2summax Calculation

    Turbine speed

    270 rpm or more

    TCM selected gear

    2nd

    Time after transition to 2nd gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    TCM indicated pressure value of SL5

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    Turbine speed - Output speed x 2nd gear ratio

    150 rpm or more

    Calculated input torque when following condition met: (a), (b), (c) and (d)

    Specified value

    (a) TCM selected gear

    2nd

    (b) Time after transition to 2nd gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    (c) TCM indicate pressure value of SL1

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    (d) Turbine speed - Output speed x 2nd gear ratio

    150 rpm or more

    Finish Conditions of J2summax Calculation

    Following conditions is met: (a), (b), (c) or (d)

     

    (a) Turbine speed

    Less than 270 rpm

    (b) TCM selected gear

    Not 2nd

    (c) Duration time while following condition met

    0 sec. or more

    Turbine speed - Output speed x 2nd gear ratio

    Less than 50 rpm

    (d) Pass condition met

     
ON malfunction (C)
  • Start Conditions of J3summax Calculation

    Turbine speed

    270 rpm or more

    TCM selected gear

    3rd

    Time after transition to 3rd gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    TCM indicated pressure value of SL1

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    Turbine speed - Output speed x 3rd gear ratio

    150 rpm or more

    Calculated input torque when following condition met: (a), (b), (c) and (d)

    Specified value

    (a) TCM selected gear

    3rd

    (b) Time after transition to 3rd gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    (c) TCM indicate pressure value of SL1

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    (d) Turbine speed - Output speed x 3rd gear ratio

    150 rpm or more

    Finish Conditions of J3summax Calculation

    Following conditions is met: (a), (b), (c) or (d)

     

    (a) Turbine speed

    Less than 270 rpm

    (b) TCM selected gear

    Not 3rd

    (c) Duration time while following condition met

    0 sec. or more

    Turbine speed - Output speed x 3rd gear ratio

    Less than 50 rpm

    (d) Pass condition met

     
ON malfunction (D)
  • Start Conditions of J4summax Calculation

    Turbine speed

    270 rpm or more

    TCM selected gear

    4th

    Time after transition to 4th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    TCM indicated pressure value of SL4

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    Turbine speed - Output speed x 4th gear ratio

    150 rpm or more

    Calculated input torque when following condition met: (a), (b), (c) and (d)

    Specified value

    (a) TCM selected gear

    4th

    (b) Time after transition to 4th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    (c) TCM indicate pressure value of SL4

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    (d) Turbine speed - Output speed x 4th gear ratio

    150 rpm or more

    Finish Conditions of J4summax Calculation

    Following conditions is met: (a), (b), (c) or (d)

     

    (a) Turbine speed

    Less than 270 rpm

    (b) TCM selected gear

    Not 4th

    (c) Duration time while following condition met

    0 sec. or more

    Turbine speed - Output speed x 4th gear ratio

    Less than 50 rpm

    (d) Pass condition met

     
ON malfunction (E)
  • Start Conditions of J5summax Calculation

    Turbine speed

    270 rpm or more

    TCM selected gear

    5th

    Time after transition to 5th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    TCM indicated pressure value of SL2

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    Turbine speed - Output speed x 5th gear ratio

    150 rpm or more

    Calculated input torque when following condition met: (a), (b), (c) and (d)

    Specified value

    (a) TCM selected gear

    5th

    (b) Time after transition to 5th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    (c) TCM indicate pressure value of SL2

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    (d) Turbine speed - Output speed x 5th gear ratio

    150 rpm or more

    Finish Conditions of J5summax Calculation

    Following conditions is met: (a), (b), (c) or (d)

     

    (a) Turbine speed

    Less than 270 rpm

    (b) TCM selected gear

    Not 5th

    (c) Duration time while following condition met

    0 sec. or more

    Turbine speed - Output speed x 5th gear ratio

    Less than 50 rpm

    (d) Pass condition met

     
ON malfunction (F)
  • Start Conditions of J6summax Calculation

    Turbine speed

    270 rpm or more

    TCM selected gear

    6th

    Time after transition to 6th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    TCM indicated pressure value of SL4

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    Turbine speed - Output speed x 6th gear ratio

    150 rpm or more

    Calculated input torque when following condition met: (a), (b), (c) and (d)

    Specified value

    (a) TCM selected gear

    6th

    (b) Time after transition to 6th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    (c) TCM indicate pressure value of SL4

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    (d) Turbine speed - Output speed x 6th gear ratio

    150 rpm or more

    Finish Conditions of J6summax Calculation

    Following conditions is met: (a), (b), (c) or (d)

     

    (a) Turbine speed

    Less than 270 rpm

    (b) TCM selected gear

    Not 6th

    (c) Duration time while following condition met

    0 sec. or more

    Turbine speed - Output speed x 6th gear ratio

    Less than 50 rpm

    (d) Pass condition met

     
ON malfunction (G)
  • Start Conditions of J7summax Calculation

    Turbine speed

    270 rpm or more

    TCM selected gear

    7th

    Time after transition to 7th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    TCM indicated pressure value of SL2

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    Turbine speed - Output speed x 7th gear ratio

    150 rpm or more

    Calculated input torque when following condition met: (a), (b), (c) and (d)

    Specified value

    (a) TCM selected gear

    7th

    (b) Time after transition to 7th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    (c) TCM indicate pressure value of SL2

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    (d) Turbine speed - Output speed x 7th gear ratio

    150 rpm or more

    Finish Conditions of J7summax Calculation

    Following conditions is met: (a), (b), (c) or (d)

     

    (a) Turbine speed

    Less than 270 rpm

    (b) TCM selected gear

    Not 7th

    (c) Duration time while following condition met

    0 sec. or more

    Turbine speed - Output speed x 7th gear ratio

    Less than 50 rpm

    (d) Pass condition met

     
ON malfunction (H)
  • Start Conditions of J8summax Calculation

    Turbine speed

    270 rpm or more

    TCM selected gear

    8th

    Time after transition to 8th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    TCM indicated pressure value of SL5

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    Turbine speed - Output speed x 8th gear ratio

    150 rpm or more

    Calculated input torque when following condition met: (a), (b), (c) and (d)

    Specified value

    (a) TCM selected gear

    8th

    (b) Time after transition to 8th gear

     

    - when detected abnormal shift

    1.5 sec. or more

    - when not detected abnormal shift

    Immediately after approval

    (c) TCM indicate pressure value of SL5

    1600 kPa (16.3 kgf/cm2, 232 psi) or more

    (d) Turbine speed - Output speed x 8th gear ratio

    150 rpm or more

    Finish Conditions of J8summax Calculation

    Following conditions is met: (a), (b), (c) or (d)

     

    (a) Turbine speed

    Less than 270 rpm

    (b) TCM selected gear

    Not 8th

    (c) Duration time while following condition met

    0 sec. or more

    Turbine speed - Output speed x 8th gear ratio

    Less than 50 rpm

    (d) Pass condition met

     

TYPICAL MALFUNCTION THRESHOLDS

When one of the following conditions is met: ON malfunction (A), (B), (C), (D), (E), (F), (G), (H), (I), (J), (K), (L), (M), (N), (O), (P) or (Q)

ON malfunction (A)

Summation of clutch heat generations at 1st gear (J1summax)

Specified value

ON malfunction (B)

Summation of clutch heat generations at 2nd gear (J2summax)

Specified value

ON malfunction (C)

Summation of clutch heat generations at 3rd gear (J3summax)

Specified value

ON malfunction (D)

Summation of clutch heat generations at 4th gear (J4summax)

Specified value

ON malfunction (E)

Summation of clutch heat generations at 5th gear (J5summax)

Specified value

ON malfunction (F)

Summation of clutch heat generations at 6th gear (J6summax)

Specified value

ON malfunction (G)

Summation of clutch heat generations at 7th gear (J7summax)

Specified value

ON malfunction (H)

Summation of clutch heat generations at 8th gear (J8summax)

Specified value

ON malfunction (I)

Shift solenoid valve SL1

OFF malfunction

ON malfunction (J)

Shift solenoid valve SL1

ON malfunction

ON malfunction (K)

Shift solenoid valve SL2

OFF malfunction

ON malfunction (L)

Shift solenoid valve SL3

OFF malfunction

ON malfunction (M)

Shift solenoid valve SL3

ON malfunction

ON malfunction (N)

Shift solenoid valve SL4

OFF malfunction

ON malfunction (O)

Shift solenoid valve SL4

ON malfunction

ON malfunction (P)

Shift solenoid valve SL5

OFF malfunction

ON malfunction (Q)

Shift solenoid valve S1

ON malfunction

CONFIRMATION DRIVING PATTERN

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

HINT:

  • After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
  • When clearing the permanent DTCs, refer to the Clear Permanent DTC procedure.

    Click here

  1. Connect the Techstream to the DLC3.
  2. Turn the engine switch on (IG) and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the engine switch off and wait for 2 minutes or more.
  5. Turn the engine switch on (IG) and turn the Techstream on.
  6. Start the engine.
  7. Perform the D Position Shift Test inspection in Road Test. [*1]

    Click here

    HINT:

    [*1] : Normal judgment procedure.

    The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

  8. Enter the following menus: Powertrain / Transmission / Utility / All Readiness.
  9. Input the DTC: P27137F.
  10. Check the DTC judgment result.

    Techstream Display

    Description

    NORMAL

    • DTC judgment completed
    • System normal

    ABNORMAL

    • DTC judgment completed
    • System abnormal

    INCOMPLETE

    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    N/A

    • Unable to perform DTC judgment
    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.

CAUTION / NOTICE / HINT

NOTICE:

  • Perform the universal trip to clear permanent DTCs.

    Click here

  • Perform registration and/or initialization when parts related to the automatic transaxle are replaced.

    Click here

PROCEDURE

1.

CHECK DTC OUTPUT (IN ADDITION TO DTC P27137F)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Transmission / Trouble Codes.

Powertrain > Transmission > Trouble Codes

(e) Read the DTCs using the Techstream.

Result

Proceed to

DTC P27137F and DTC P07457F, P07507E, P07757F, P07957F, P28077F and/or P28167F are output

A

Only DTC P27137F is output

B

DTC P07457F, P07507E, P07757F, P07957F, P27137F, P28077F, P28167F and other DTCs are output

C

HINT:

  • If any DTCs other than P07457F, P07507E, P07757F, P07957F, P27137F, P28077F and P28167F are output, perform troubleshooting for those DTCs first.
  • If a shift solenoid value is stuck ON or OFF, DTCs for several shift solenoid valves including the malfunctioning shift solenoid valve will be stored.
B

GO TO STEP 5

C

GO TO DTC CHART

A

2.

CLEAR DTC AND PERFORM STALL SPEED TEST

(a) Clear the DTCs.

Click here

HINT:

Write down the currently output DTCs before clearing them.

Powertrain > Transmission > Clear DTCs

(b) Perform the stall speed test.

Click here

Test Condition

Proceed to

Stall speed test can be performed

A

Stall speed test cannot be performed

B

B

GO TO STEP 5

A

3.

INSPECT SHIFT SOLENOID VALVE SL1, SL2, SL3, SL4 AND SL5

(a) Remove the shift solenoid valves SL1, SL2, SL3, SL4 and SL5.

Click here

*a

Component without harness connected

(Shift Solenoid Valve SL1, SL2, SL3, SL4 and SL5)

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

Shift solenoid valve SL1 connector terminal 1 - terminal 2

20°C (68°F)

5.0 to 5.6 Ω

Shift solenoid valve SL2 connector terminal 1 - terminal 2

20°C (68°F)

5.0 to 5.6 Ω

Shift solenoid valve SL3 connector terminal 1 - terminal 2

20°C (68°F)

5.0 to 5.6 Ω

Shift solenoid valve SL4 connector terminal 1 - terminal 2

20°C (68°F)

5.0 to 5.6 Ω

Shift solenoid valve SL5 connector terminal 1 - terminal 2

20°C (68°F)

5.0 to 5.6 Ω

(c) Connect a positive (+) lead from the battery to terminal 1 and a negative (-) lead with a 21 W bulb to terminal 2 of the solenoid valve connector. Check that the valve moves and makes an operating sound.

OK:

Valve moves and makes an operating sound.

NG

REPLACE SHIFT SOLENOID VALVE SL1, SL2, SL3, SL4 OR SL5

OK

4.

INSPECT SHIFT SOLENOID VALVE S1

(a) Remove the shift solenoid valve S1.

Click here

*1

Shift Solenoid Valve S1

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

Shift solenoid valve S1 connector terminal - Shift solenoid valve S1 body

20°C (68°F)

11 to 15 Ω

(c) Connect a positive (+) lead from the battery to the terminal of the solenoid valve connector, and a negative (-) lead to the solenoid body. Check that the valve moves and makes an operating sound.

OK:

Valve moves and makes an operating sound.

NG

REPLACE SHIFT SOLENOID VALVE S1

OK

5.

INSPECT SHIFT SOLENOID VALVE SLT

(a) Remove the shift solenoid valve SLT.

Click here

*a

Component without harness connected

(Shift Solenoid Valve SLT)

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

Shift solenoid valve SLT connector terminal 1 - terminal 2

20°C (68°F)

5.0 to 5.6 Ω

(c) Connect a positive (+) lead from the battery to terminal 1 and a negative (-) lead with a 21 W bulb to terminal 2 of the solenoid valve connector. Check that the valve moves and makes an operating sound.

OK:

Valve moves and makes an operating sound.

NG

REPLACE SHIFT SOLENOID VALVE SLT

OK

6.

INSPECT TRANSMISSION VALVE BODY ASSEMBLY

(a) Inspect the transmission valve body assembly.

Click here

OK:

There is no foreign matter on each valve and they operate smoothly.

NG

REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY

OK

7.

INSPECT TORQUE CONVERTER ASSEMBLY

(a) Inspect the torque converter assembly.

Click here

OK:

The torque converter assembly is normal.

NG

REPAIR OR REPLACE TORQUE CONVERTER ASSEMBLY

OK

8.

REPAIR OR REPLACE AUTOMATIC TRANSAXLE ASSEMBLY

(a) Repair or replace the automatic transaxle assembly.

Click here

NEXT

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