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 Code

DTC Detection Condition

  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

Trouble Area

P2769

  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

  • Wire harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SL)

  • ECM

P2770

  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

  • Wire harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SL)

  • ECM

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 the DTC.

WIRING DIAGRAM

C264610E60

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. C264597E33

      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

      3 (SL) - Body ground

      20°C (68°F)

      11 to 15 Ω
      Table 1. Text in Illustration

      *a

      Component without harness connected

      (Transmission Wire)

    REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLYClick here

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

    U123371E02

    1. Disconnect the ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      C111-67 (SL) - Body ground

      20°C (68°F)

      11 to 15 Ω
      Table 2. Text in Illustration

      *a

      Front view of wire harness connector

      (to ECM)

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

  3. REPLACE ECM

    1. Replace the ECM (Click here).

    PERFORM INITIALIZATION

    (Click here)

  4. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

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

    PERFORM INITIALIZATION

    (Click here)