Code No.C1226: FR inlet valve
Code No.C1231: FR outlet valve
Code No.C1236: FL inlet valve
Code No.C1241: FL outlet valve
Code No.C1246: RR inlet valve
Code No.C1251: RR outlet valve
Code No.C1256: RL inlet valve
Code No.C1261: RL outlet valve
Code No.C1279: Valve power circuit stuck on (short circuit)

• ABS-ECU contains the power supply circuit for the solenoid valve. The solenoid valve is energised by the valve relay, which is incorporated in ABS-ECU.
  
• The valve relay, which is incorporated in ABS-ECU, is always energising the solenoid valve unless the initial check is in progress when the ignition switch is turned on, or the recurrent system check is in progress.
  
• ABS-ECU activates the solenoid valve by turning on its driving transistor.
  

DIAGNOSIS CODE SET CONDITIONS

• The output of the each solenoid valve does not change when the solenoid valve is "ON" and the solenoid valve monitor is "ON"
  

• The solenoid valve relay monitor is "ON" when the solenoid valve relay is "OFF"
  

PROBABLE CAUSES

• Damaged wiring harness or connector
  
• ABS-ECU malfunction