Dtc P2769 Torque Converter Clutch Solenoid Circuit Low (Shift Solenoid Valve Dsl)

Transmission. Camry. Acv40 Gsv40
U250E Automatic Transaxle. Camry. Acv40 Gsv40

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT TRANSMISSION WIRE (DSL)

CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

INSPECT SHIFT SOLENOID VALVE (DSL)

DTC P2769 Torque Converter Clutch Solenoid Circuit Low (Shift Solenoid Valve DSL)

DTC P2770 Torque Converter Clutch Solenoid Circuit High (Shift Solenoid Valve DSL)


DESCRIPTION

The shift solenoid valve DSL is turned "ON" and "OFF" by signals from the ECM in order to control the hydraulic pressure operation, the lock-up relay valve, which then controls operation of the lock-up clutch.

DTC No.
DTC Detection Condition
Trouble Area
P2769
ECM detects short in solenoid valve DSL circuit (0.1 sec.) when solenoid valve DSL is operated (2-trip detection logic)
  1. Short in shift solenoid valve DSL circuit
  2. Shift solenoid valve DSL
  3. ECM
P2770
ECM detects open in solenoid valve DSL circuit (0.1 sec.) when solenoid valve DSL is not operated (2-trip detection logic)
  1. Open in shift solenoid valve DSL circuit
  2. Shift solenoid valve DSL
  3. ECM

MONITOR DESCRIPTION

Torque converter lock-up is controlled by the ECM based on engine rpm, engine load, engine temperature, vehicle speed, transmission temperature, and shift range selection. The ECM determines the lock-up status of the torque converter by comparing the engine rpm (NE) to the input turbine rpm (NT). The ECM calculates the actual transmission gear by comparing input turbine rpm (NT) to counter gear rpm (NC). When conditions are appropriate, the ECM requests "lock-up" by applying control voltage to the shift solenoid DSL. When the DSL is opened, it applies pressure to the lock-up relay valve and locks the torque converter clutch. If the ECM detects an open or short in the DSL solenoid circuit, the ECM interprets this as a fault in the DSL solenoid or circuit. The ECM will turn on the MIL and store the DTC.

WIRING DIAGRAM


Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System. Dtc P2769 Torque Converter Clutch Solenoid Circuit Low (Shift Solenoid Valve Dsl)


INSPECTION PROCEDURE

1.INSPECT TRANSMISSION WIRE (DSL)


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System. Dtc P2769 Torque Converter Clutch Solenoid Circuit Low (Shift Solenoid Valve Dsl)

  1. Disconnect the transmission wire connector from the transaxle.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    20°C (68°F)
    10 - Body ground
    		11 to 13 Ω


NG
Go to step 3
OK


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


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System. Dtc P2769 Torque Converter Clutch Solenoid Circuit Low (Shift Solenoid Valve Dsl)

  1. Connect the transmission wire connector.

  1. Disconnect the ECM connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    20°C (68°F)
    C24-79 (DSL) - Body ground
    		11 to 13 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM

3.INSPECT SHIFT SOLENOID VALVE (DSL)


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System. Dtc P2769 Torque Converter Clutch Solenoid Circuit Low (Shift Solenoid Valve Dsl)

  1. Remove the shift solenoid valve DSL.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    20°C (68°F)
    Solenoid Connector (DSL) - Solenoid Body (DSL)
    		11 to 13 Ω

  1. Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.

    OK:
    The solenoid valve makes an operating sound.


NG
REPLACE SHIFT SOLENOID VALVE (DSL)
OK

REPAIR OR REPLACE TRANSMISSION WIRE