Ab60F Automatic Transmission Transaxle. Dtc P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve Slu)

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200

Ab60F Automatic Transmission Transaxle. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT NO. 1 TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU)

CHECK HARNESS AND CONNECTOR (NO. 1 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.

Land Cruiser. Urj200, 202 Grj200 Vdj200.Ab60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Ur-Fe).
Dtc
P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve Slu)

DTC Code	DTC Detection Condition	Trouble Area
P2759	An 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 that there is a malfunction. The ECM will illuminate the MIL and store this DTC.

WIRING DIAGRAM

INSPECTION PROCEDURE

1.INSPECT NO. 1 TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU)

Disconnect the No. 1 transmission wire connector.

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
Text in Illustration
*a
Component without harness connected
(No. 1 Transmission Wire)

Text in Illustration
*a	Component without harness connected (No. 1 Transmission Wire)

Go to step 3

OK

2.CHECK HARNESS AND CONNECTOR (NO. 1 TRANSMISSION WIRE - ECM)

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

for LHD
Tester Connection	Condition	Specified Condition
C45-15 (SLU+) - C45-14 (SLU-)	20°C (68°F)	5.0 to 5.6 Ω
C45-15 (SLU+) - Body ground	Always	10 kΩ or higher
C45-14 (SLU-) - Body ground	Always	10 kΩ or higher

for RHD
Tester Connection	Condition	Specified Condition
C46-15 (SLU+) - C46-14 (SLU-)	20°C (68°F)	5.0 to 5.6 Ω
C46-15 (SLU+) - Body ground	Always	10 kΩ or higher
C46-14 (SLU-) - Body ground	Always	10 kΩ or higher

Text in Illustration
*1	for LHD
*2	for RHD
*a	Front view of wire harness connector (to ECM)

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE ECM (Click here)

3.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
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 an operating noise

Text in Illustration
*a	Component without harness connected (Shift Solenoid Valve SLU)

REPLACE SHIFT SOLENOID VALVE SLU (Click here)

REPAIR OR REPLACE NO. 1 TRANSMISSION WIRE (Click here)

Measurement Condition	Specified Condition
Battery positive (+) with a 21 W bulb → Terminal 2 Battery negative (-) → Terminal 1	Valve moves and makes an operating noise