Inspection Procedure: Procedure
WARNING: This page is about a different car, the 2010 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P2757)
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG) position and push the Techstream main switch ON.
- When you use Techstream:
Select the item "Powertrain / ECT / Trouble Codes".
- Read the DTCs using the Techstream.
Result
Display (DTC output) Proceed to Only "P2757" is output A "P2757" and other DTCs B HINT:
If any other codes besides "P2757" are output, perform troubleshooting for those DTCs first.
B → GO TO DTC CHART
A: Go to next step
- INSPECT SHIFT SOLENOID VALVE SLU
- Remove the shift solenoid valve SLU.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Tester Connection Specified Condition
20°C (68°F)1 - 2 5.0 to 5.6 Ω - Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve.
OK
The solenoid makes an operating sound.
NG → REPLACE SHIFT SOLENOID VALVE SLU
OK: Go to next step
- INSPECT TRANSMISSION VALVE BODY ASSEMBLY
OK
There are no foreign objects on each valve.
NG → REPLACE TRANSMISSION VALVE BODY ASSEMBLY
OK: Go to next step
- INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY
- Check the torque converter clutch assembly. Refer to INSPECTION
.
OK
The torque converter clutch operates normally.
NG → REPLACE TORQUE CONVERTER CLUTCH ASSEMBLY
OK → REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY
- Check the torque converter clutch assembly. Refer to INSPECTION
.