DTC P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU): Description
WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
The amount of current flow to the solenoid is controlled by the duty ratio* of the ECM output signal. The higher the duty ratio, the higher the lock-up hydraulic pressure becomes during the lock-up operation.
*: The duty ratio is the ratio of the current ON time (A) to the total of the current ON and OFF times (A + B).
Duty Ratio (%) = A / (A + B) x 100
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P2759 | Open or short is detected in shift solenoid valve SLU circuit for 1 second or more while driving (1 trip detection logic) |
|
- Reference: Inspect using an oscilloscope.
Check the waveform of the ECM connector.
Standard voltage: Refer to illustration.
WAVEFORM REFERENCE
| Item | Content |
|---|---|
| Tester Connection | E6-15 (SLU+) - E6-14 (SLU-) |
| Tool Setting | 5 V/DIV., 1 msec./DIV. |
| Condition | 4th (lock-up) or 5th (lock-up) gear |