VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C0226/21, C0236/22, C0246/23, C0256/24, C1225/25, C1226/26, C1227/27, C1228/28

DTC Code DTC Name
C0226/21 SFR Solenoid Circuit
C0236/22 SFL Solenoid Circuit
C0246/23 SRR Solenoid Circuit
C0256/24 SRL Solenoid Circuit
C1225/25 SMC Solenoid Circuit
C1226/26 SMC Solenoid Circuit
C1227/27 SRC Solenoid Circuit
C1228/28 SRC Solenoid Circuit

DESCRIPTION

These solenoids turn on when signals are received from the skid control ECU and they control the pressure acting on the wheel cylinders to control the braking force.

DTC Code DTC Detection Condition Trouble Area

C0226/21

C0236/22

C0246/23

C0256/24

C1225/25

C1226/26

C1227/27

C1228/28

Solenoid valve signal does not match the check result.
  • Solenoid circuit

  • Brake actuator assembly

WIRING DIAGRAM

A005SP9E01

INSPECTION PROCEDURE

Note

When replacing the skid control ECU (brake actuator assembly), perform the engine variant learning Click here.

PROCEDURE


  1. RECONFIRM DTC

    Tech Tips

    These codes are stored when a problem is detected in the brake actuator assembly.

    The solenoid circuits are in the brake actuator assembly.

    Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if any DTC is output before replacing the brake actuator assembly.


    1. Clear the DTCs Click here.

    2. Start the engine.

    3. Drive the vehicle at the speed of 20 km/h (12 mph) or more.

    4. Check if the same DTC is output Click here.

      Result
      Result Proceed to
      DTC C0226/21, C0236/22, C0246/23, C0256/24, C1225/25, C1226/26, C1227/27 and/or C1228/28 is not output. A
      DTC C0226/21, C0236/22, C0246/23, C0256/24, C1225/25, C1226/26, C1227/27 and/or C1228/28 is output. B

      Tech Tips


      • If a speed signal of 6 km/h (4 mph) or more is input to the skid control ECU with the ignition switch ON and the stop light switch off, the ECU performs self diagnosis of the motor and solenoid circuits.

      • If the normal system code is output (a trouble code is not output), slightly jiggle the connector, wire harness, and fuses of the brake actuator assembly. Make sure that no DTCs are output.

      • If any DTCs are stored while jiggling a connector or wire harness of the brake actuator assembly (skid control ECU), inspect and repair the connector or wire harness.

      • The DTCs may be stored due to a bad connection at the connector terminal.


    B
    A