Dtc P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200
Ae80F Automatic Transmission Transaxle. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (SHIFT SOLENOID VALVE SLU - TCM)

CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)

INSPECT SHIFT SOLENOID VALVE SLU

DTC P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical


DESCRIPTION

The TCM controls the lock-up solenoid using a predetermined current, and performs lock-up and flex lock-up control.

DTC No.
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P2759
  1. Vehicle is being driven
  2. Shift solenoid valve SLU circuit is open or shorted
  3. 2 seconds
  4. 1-trip detection logic
  1. Shift solenoid valve SLU
  2. Transmission wire
  3. Harness or connector
  4. TCM

MONITOR DESCRIPTION

When an open or short in a shift solenoid valve SLU circuit is detected, the TCM determines that there is a malfunction. The TCM will illuminate the MIL and store this DTC.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Ae80F Automatic Transmission Transaxle.Automatic Transmission System. Dtc P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical


INSPECTION PROCEDURE

NOTICE:
Perform registration and/or initialization when parts related to the automatic transmission are replaced (Click here).
HINT:
After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
  1. Perform the Lock-up Function in Road Test (Click here).
  2. Check for DTCs again (Click here).
1.CHECK HARNESS AND CONNECTOR (SHIFT SOLENOID VALVE SLU - TCM)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Ae80F Automatic Transmission Transaxle.Automatic Transmission System. Dtc P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical

  1. Disconnect the TCM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A80-7 (SLU+) - A80-6 (SLU-)
    		20°C (68°F)
    		5.0 to 5.6 Ω
    A80-7 (SLU+) or A80-6 (SLU-) - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to TCM)


NG
Go to step 2
OK

REPLACE TCM (Click here)

2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)

  1. Disconnect the C171 transmission wire connector.

  1. Disconnect the A80 TCM connector.

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

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    C171-5 (SLU+) - A80-7 (SLU+)
    		Always
    		Below 1 Ω
    C171-6 (SLU-) - A80-6 (SLU-)
    		Always
    		Below 1 Ω
    C171-5 (SLU+) or A80-7 (SLU+) - Body ground
    		Always
    		10 kΩ or higher
    C171-6 (SLU-) or A80-6 (SLU-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT SHIFT SOLENOID VALVE SLU


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Ae80F Automatic Transmission Transaxle.Automatic Transmission System. Dtc P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical

  1. Remove the shift solenoid valve SLU (Click here).

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Terminal 1 of the shift solenoid valve SLU - Terminal 2
    		20°C (68°F)
    		5.0 to 5.6 Ω

  1. 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
    1. Battery positive (+) with a 21 W bulb → Terminal 2
    2. Battery negative (-) → Terminal 1
    		Valve moves and makes an operating noise
Text in Illustration
*1
Shift Solenoid Valve SLU


NG
REPLACE SHIFT SOLENOID VALVE SLU (Click here)
OK

REPAIR OR REPLACE TRANSMISSION WIRE (Click here)