VEHICLE STABILITY CONTROL SYSTEM(for Hydraulic Brake Booster), Diagnostic DTC:C1225, C1226, C1227, C1228, C1468, C1469, C146A, C146B

DTC Code DTC Name
C1225 SM Solenoid Circuit
C1226 SA2 Solenoid Circuit
C1227 SA3 Solenoid Circuit
C1228 STR Solenoid Circuit
C1468 SFR Solenoid Circuit
C1469 SFL Solenoid Circuit
C146A SRR Solenoid Circuit
C146B SRL Solenoid Circuit

DESCRIPTION

The solenoid turns on when signals are received from the skid control ECU (master cylinder solenoid) and controls the pressure acting on the wheel cylinders, thus controlling braking force.

DTC Code DTC Detection Condition Trouble Area
C1225 An open or short circuit in the SMCF circuit continues for 0.05 seconds or more.

  • SMCF circuit

  • Skid control ECU (Master cylinder solenoid)
C1226 An open or short circuit in the SREA circuit continues for 0.05 seconds or more.

  • SREA circuit

  • Skid control ECU (Master cylinder solenoid)
C1227 An open or short circuit in the SREC circuit continues for 0.05 seconds or more.

  • SREC circuit

  • Skid control ECU (Master cylinder solenoid)
C1228 An open or short circuit in the STR circuit continues for 0.05 seconds or more.

  • STR circuit

  • Skid control ECU (Master cylinder solenoid)
C1468 An open or short circuit in the SFRH or SFRR circuit continues for 0.05 seconds or more.

  • SFRH or SFRR circuit

  • Skid control ECU (Master cylinder solenoid)
C1469 An open or short circuit in the SFLH or SFLR circuit continues for 0.05 seconds or more.

  • SFLH or SFLR circuit

  • Skid control ECU (Master cylinder solenoid)
C146A An open or short circuit in the SRRH or SRRR circuit continues for 0.05 seconds or more.

  • SRRH or SRRR circuit

  • Skid control ECU (Master cylinder solenoid)
C146B An open or short circuit in the SRLH or SRLR circuit continues for 0.05 seconds or more.

  • SRLH or SRLR circuit

  • Skid control ECU (Master cylinder solenoid)

WIRING DIAGRAM

B001EJXE19

CAUTION / NOTICE / HINT

Note

When replacing the skid control ECU (master cylinder solenoid), perform zero point calibration and store the system information Click here.

PROCEDURE


  1. RECONFIRM DTC

    Tech Tips

    These codes are stored when a problem is detected in the skid control ECU (master cylinder solenoid).

    The solenoid circuit is in the skid control ECU (master cylinder solenoid).

    Therefore, solenoid circuit inspections and solenoid unit inspections cannot be performed. Be sure to check if any DTC is output before replacing the skid control ECU (master cylinder solenoid).


    1. Clear the DTCs Click here.

    2. Drive the vehicle at a speed of approximately 32 km/h (20 mph) or more for 60 seconds or more.

    3. Check if the same DTCs are output Click here.

      Result
      Result Proceed to
      DTC is not output A
      DTC is output (for LHD) B
      DTC is output (for RHD) C

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

    REPLACE MASTER CYLINDER SOLENOID Click here

    C

    REPLACE MASTER CYLINDER SOLENOID Click here