Dtc P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve Slu)
Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
DESCRIPTION
MONITOR DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU)
CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
INSPECT SHIFT SOLENOID VALVE SLU
DTC P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) |
DESCRIPTION
The amount of current flow to the solenoid is controlled by the ECM. During the lock-up operation, if the current increases, the lock-up hydraulic pressure increases.DTC Code
| DTC Detection Condition
| Trouble Area
|
P2759
| Open or short is detected in the shift solenoid valve SLU circuit for 1 sec. or more while driving (1-trip detection logic).
| - Open or short in shift solenoid valve SLU circuit
- Shift solenoid valve SLU
- ECM
|
MONITOR DESCRIPTION
When an open or short in the shift solenoid valve (SLU) circuit is detected, the ECM determines there is a malfunction. The ECM will turn on the MIL and store this DTC.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU) |
Disconnect the transmission wire connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
13 (SLU+) - 5 (SLU-)
| 20°C (68°F)
| 5.0 to 5.6 Ω
|
13 (SLU+) - Body ground
| Always
| 10 kΩ or higher
|
5 (SLU-) - Body ground
| Always
| 10 kΩ or higher
|
Text in Illustration*a
| Component without harness connected
(Transmission Wire)
|
| 2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) |
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
C130-15 (SLU+) - C130-14 (SLU-)
| 20°C (68°F)
| 5.0 to 5.6 Ω
|
C130-15 (SLU+) - Body ground
| Always
| 10 kΩ or higher
|
C130-14 (SLU-) - Body ground
| Always
| 10 kΩ or higher
|
Text in Illustration*a
| Rear view of wire harness connector
(to ECM)
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 3.INSPECT SHIFT SOLENOID VALVE SLU |
Remove 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
|
Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.
- OK:
Measurement Condition
| Specified Condition
|
- Battery positive (+) with a 21 W bulb → Terminal 2
- Battery negative (-) → Terminal 1
| Valve moves and makes operating noise
|
Text in Illustration*a
| Component without harness connected
(Shift Solenoid Valve SLU)
|
