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)

for Preparation Click here


DESCRIPTION

The ECM turns on or off solenoid SL to control the oil pressure applied to the lock up relay valve and turns the lock up on or off.

DTC No.
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P2769
  1. Lock up is operating
  2. Short in lock-up solenoid SL circuit
  3. Detected 2 times or more consecutively
  4. 2-trip detection logic
  1. Short in lock-up solenoid SL circuit
  2. Continuously variable transaxle assembly
  3. ECM
P2770
  1. Lock up is operating
  2. Open in lock-up solenoid SL circuit
  3. Detected 2 times or more consecutively
  4. 2-trip detection logic
  1. Open in lock-up solenoid SL circuit
  2. Continuously variable transaxle assembly
  3. ECM

MONITOR DESCRIPTION

These DTCs indicate an open or short in the lock-up solenoid SL circuit. When there is an open or short circuit in any shift solenoid valve circuits, the ECM detects the problem, illuminates the MIL and stores the DTC.

WIRING DIAGRAM


C195850E02


INSPECTION PROCEDURE

These DTCs indicate an open or short in the lock-up solenoid SL circuit. When there is an open or short circuit in any lock-up solenoid valve circuits, the ECM detects the problem, illuminates the MIL and stores the DTC.
1.INSPECT CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY (LOCK-UP SOLENOID SL)


    C193934E04

  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
    		Condition
    		Specified Condition
    10 (SL) - Body ground
    		20°C (68°F)
    		11 to 15 Ω

    Text in Illustration 
    *1
    		Component without harness connected:
    (Continuously Variable Transaxle Assembly
    (Transmission Wire))



NG
Go to step 5
OK


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


    C193939E04

  1. Connect the transmission wire connector to the transaxle.

  1. Disconnect the ECM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B8-58 (SL) - B8-105 (E1)
    		20°C (68°F)
    		11 to 15 Ω

    Text in Illustration 
    *1
    		Front view of wire harness connector:
    (to ECM)



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.REPLACE ECM

  1. Replace the ECM (Click here).


NEXT


4.PERFORM INITIALIZATION

NOTICE:
  1. Performing reset memory/initialization will clear the learned values of both the yaw rate and acceleration sensor (deceleration sensor 0 point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate and acceleration sensor 0 point calibration, and CVT oil pressure calibration when replacing any of the parts shown in the following table:
    Replaced Part
    1. Continuously variable transaxle assembly
    2. ECM
    3. Oil pressure sensor
    4. Yaw rate and acceleration sensor
  2. After reset memory, always perform yaw rate and acceleration sensor (deceleration sensor 0 point) calibration first, and then the CVT oil pressure calibration.
  3. Always perform the 0 point calibration with the vehicle on level ground.
  4. Do not shake or vibrate the vehicle during the 0 point calibration.

  1. Using the intelligent tester, perform the reset memory, deceleration sensor 0 point calibration and CVT oil pressure calibration (Click here).

  1. Check for DTCs again (Click here).


NEXT

END 

5.REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

  1. Replace the continuously variable transaxle assembly (Click here).


NEXT


6.PERFORM INITIALIZATION

NOTICE:
  1. Performing reset memory/initialization will clear the learned values of both the yaw rate and acceleration sensor (deceleration sensor 0 point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate and acceleration sensor 0 point calibration, and CVT oil pressure calibration when replacing any of the parts shown in the following table:
    Replaced Part
    1. Continuously variable transaxle assembly
    2. ECM
    3. Oil pressure sensor
    4. Yaw rate and acceleration sensor
  2. After reset memory, always perform yaw rate and acceleration sensor (deceleration sensor 0 point) calibration first, and then the CVT oil pressure calibration.
  3. Always perform the 0 point calibration with the vehicle on level ground.
  4. Do not shake or vibrate the vehicle during the 0 point calibration.

  1. Using the intelligent tester, perform the reset memory, deceleration sensor 0 point calibration and CVT oil pressure calibration (Click here).

  1. Check for DTCs again (Click here).


NEXT

END