CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P099B, P099C

DTC Code DTC Name
P099B Shift Solenoid "G" Control Circuit Low (Shift Solenoid Valve SC)
P099C Shift Solenoid "G" Control Circuit High (Shift Solenoid Valve SC)

DESCRIPTION

Based on the signal received by the shift solenoid valve SC, the ECM uses the shift solenoid valve SLU to control the forward and reverse clutch pressure.

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

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P099B Shift Solenoid "G" Control Circuit Low (Shift Solenoid Valve SC) While the vehicle is driven, there is a short in the shift solenoid valve SC circuit for 3 seconds (1 trip detection logic).

  • Wire harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SC)

  • ECM

 Comes on DTC stored
P099C Shift Solenoid "G" Control Circuit High (Shift Solenoid Valve SC) While the vehicle is driven, there is an open in the shift solenoid valve SC circuit for 0.5 seconds (1 trip detection logic).

  • Wire harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SC)

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

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

WIRING DIAGRAM

A001WKTE21
*1 Shift Solenoid Valve SC
*2 Transmission Wire
*3 Continuously Variable Transaxle Assembly

CAUTION / NOTICE / HINT

Note


  • Perform initialization after replacing any parts related to the continuously variable transaxle system.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

Tech Tips

After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Drive the vehicle and confirm the lock-up on and off conditions according to Road Test.

    Click here

  2. Check for DTCs again.

    Click here

PROCEDURE


  1. INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SC)


    1. A001UYDC13
      *a

      Component without harness connected

      (Transmission Wire)

      Disconnect the C40 transmission wire connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      10 (SC) - Body ground 20°C (68°F) 11 to 15 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY Click here

    OK

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


    1. A001YB2C09
      *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
      C63-41 (SC) - 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.


      • When Not Using the Engine Support Bridge

        Click here

      • When Using the Engine Support Bridge

        Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM INITIALIZATION Click here