DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) [09/2014 - 11/2017]: Procedure
WARNING: This page is about a different car, the 2017 Lexus RC 350, 2017 Lexus RC 300, 2016 Lexus RC 350, 2016 Lexus RC 300, and 2015 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU)
- Disconnect the F47 transmission wire connector.
*a Component without harness connected
(Transmission Wire) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 12 (SLU+) - 4 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω 12 (SLU+) - Body ground Always 10 kΩ or higher 4 (SLU-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
See step 3
Result:
OK
See step 2
- Disconnect the F47 transmission wire connector.
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
- Connect the F47 transmission wire connector.
- Disconnect the F3 ECM connector.
*a Rear view of wire harness connector
(to ECM) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition F3-3 (SLU+) - F3-2 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω F3-3 (SLU+) - Body ground Always 10 kΩ or higher F3-2 (SLU-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to COMPONENTS [09/2014 - 10/2015] , or refer to COMPONENTS [10/2015 - 11/2017]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- INSPECT SHIFT SOLENOID VALVE SLU
- Remove the shift solenoid valve SLU.
*a Shift Solenoid Valve SLU - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 5.0 to 5.6 Ω - Connect a positive (+) lead from the battery with a 21 W bulb to terminal 2 and a negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve.
OK
The solenoid makes an operating sound.
Result
Proceed to OK NG
Result:
OK
REPAIR OR REPLACE TRANSMISSION WIRE. Refer to COMPONENTS [09/2014 - ]
Result:
NG
REPLACE SHIFT SOLENOID VALVE SLU. Refer to COMPONENTS [09/2014 - ]
- Remove the shift solenoid valve SLU.