Dtc P2769 Short In Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve Sl)

Transmission. Camry. Acv40 Gsv40
U660E Automatic Transaxle. Camry. Acv40 Gsv40

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL)

INSPECT SHIFT SOLENOID VALVE SL (RESISTANCE)

DTC P2769 Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)

DTC P2770 Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)


DESCRIPTION

The shift solenoid valve SL is turned ON or OFF by signals from the TCM to control the hydraulic pressure acting on the lock-up relay valve, which then controls operation of the lock-up clutch.

DTC No.
DTC Detection Condition
Trouble Area
P2769
TCM detects a short in the shift solenoid valve SL circuit when the shift solenoid valve SL is operated (2 trip detection logic)
  1. Short in shift solenoid valve SL circuit
  2. Shift solenoid valve SL
  3. TCM
P2770
TCM detects an open in the shift solenoid valve SL circuit when the shift solenoid valve SL is not operated (2 trip detection logic)
  1. Open in shift solenoid valve SL circuit
  2. Shift solenoid valve SL
  3. TCM
Fail-safe function:
If the TCM detects a malfunction, it turns the shift solenoid valve SL OFF.

MONITOR DESCRIPTION

Based on the signals from the throttle position sensor, the air flow meter and the crankshaft position sensor, the TCM sends a signal to the solenoid valve SL to regulate the hydraulic pressure and provide smoother torque converter clutch engagement. The shift solenoid valve SL responds to commands from the TCM. The valve controls the lock-up relay valve to perform the torque-converter lock-up function. If the TCM detects an open or short circuit for shift solenoid valve SL, it will illuminate the MIL.

WIRING DIAGRAM


Camry. Acv40 Gsv40.U660E Automatic Transaxle.Automatic Transaxle System. Dtc P2769 Short In Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve Sl)


INSPECTION PROCEDURE

1.INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL)


    Camry. Acv40 Gsv40.U660E Automatic Transaxle.Automatic Transaxle System. Dtc P2769 Short In Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve Sl)

  1. Remove the TCM from the transaxle.

  1. Measure the resistance of the transmission wire.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    6 (SL) - Body ground
    		20°C (68°F)
    		11 to 15 Ω


OK
REPLACE TCM
NG


2.INSPECT SHIFT SOLENOID VALVE SL (RESISTANCE)
Camry. Acv40 Gsv40

  1. Remove the shift solenoid valve SL.

  1. Measure the resistance between the solenoid valve terminal and solenoid valve body.

    Standard resistance:
    11 to 15 Ω at 20°C (68°F)


NG
REPLACE SHIFT SOLENOID VALVE SL
OK

REPLACE TRANSMISSION WIRE