System Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
By turning the shift solenoid valve SL ON or OFF, the TCM controls the fluid pressure to the lock-up relay valve, turning the lock-up ON or OFF
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC Code |
DTC Detection Condition
- Diagnosis Condition
- Malfunction Status
- Malfunction Time
- Other
|
Trouble Area |
| P0741 |
- ECT is 40°C (104°F) or more, ATF temperature is -10°C (14°F) or more, and vehicle is driven with shift lever in D (no malfunctions are detected in shift solenoid valve SL1, 2, 3, 4 and 5, SR, SLU, SL, speed sensors (SP2, NT), water temperature sensor, oil temperature sensor, knock control sensor, electronic throttle, or CAN2)
- During lock-up request, engine speed and turbine speed slip amount is 70 rpm or more
- 2 seconds or more per trip
- 2 trip detection logic
|
- Shift solenoid valve SL
- Shift solenoid valve SLU
- Valve body assembly
- Torque converter clutch assembly
- Automatic transmission assembly
|
| P2757 |
- ECT is 40°C (104°F) or more, ATF temperature is -10°C (14°F) or more, and vehicle is driven with shift lever in D (no malfunctions are detected in shift solenoid valve SL1, 2, 3, 4 and 5, SR, SLU, SL, speed sensors (SP2, NT), water temperature sensor, oil temperature sensor, knock control sensor, electronic throttle, or CAN2)
- During lock-up request, engine speed and turbine speed slip amount is 70 rpm or more
- 2 seconds or more per trip
- 2 trip detection logic
|
- Shift solenoid valve SL
- Shift solenoid valve SLU
- Valve body assembly
- Torque converter clutch assembly
- Automatic transmission assembly
|