CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P2769 and P2770

DTC Code DTC Name
P2769 Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
P2770 Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)

DESCRIPTION

Based on the signal received by the shift solenoid valve SL, the ECM uses the shift solenoid valve SLU to control the lock-up clutch pressure.

If there is an open or short in the shift solenoid valve SL circuit, the ECM stops sending current to the defective shift solenoid valve.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P2769

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

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other

  1. Lock-up is operating.

  2. A short in the shift solenoid valve SL circuit is detected.

  3. Detected 1 time or more consecutively

  4. 1-trip detection logic

  • Harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SL)

  • ECM

Comes on

DTC stored

P2770

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

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other

  1. Lock-up is operating.

  2. An open in the shift solenoid valve SL circuit is detected.

  3. Detected 1 time or more consecutively

  4. 1-trip detection logic

  • Harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SL)

  • ECM

Comes on

DTC stored

MONITOR DESCRIPTION

These DTCs indicate an open or short in the shift solenoid valve SL circuit. If there is an open or short in the shift solenoid valve SL circuit, the ECM detects the problem, illuminates the MIL and stores a DTC.

WIRING DIAGRAM

C264610E49

CAUTION / NOTICE / HINT

Note:

  • Perform initialization when parts related to the continuously variable transaxle are replaced.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

PROCEDURE

  1. INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL)

    1. C298188C10

      *a

      Component without harness connected

      (Transmission Wire)

      Disconnect the transmission wire connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      12 (SL) - Body ground

      20°C (68°F)

      11 to 15 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLYClick here

    OK

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

    1. C326700C05

      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      B93-67 (SL) - Body ground

      20°C (68°F)

      11 to 15 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM)

    OK

  3. REPLACE ECM

    1. Replace the ECM.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    PERFORM INITIALIZATION

    Click here

  4. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

    1. Replace the continuously variable transaxle assembly.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    PERFORM INITIALIZATION

    Click here