AIR SUSPENSION SYSTEM FAIL-SAFE CHART


  1. FAIL-SAFE FUNCTION


    1. When an air suspension system malfunction is detected under the normal control operation, the suspension control ECU will suspend the switch control of the height control operation.

      Air Suspension System
      DTC No. Malfunction Item Fail-safe Operation Fail-safe Deactivation Conditions

      C1711

      C1712

      C1713

      C1714

      		 Height control sensor circuit To interrupt the height control and damping control. Returns to normal condition.

      C1715

      C1716

      C1717

      		 Acceleration sensor circuit To interrupt the damping control. Returns to normal condition.

      C1731

      C1732

      C1733

      C1734

      		 Absorber control actuator circuit

      To interrupt the damping control, after moving to the 9th step.

      (Except during actuator malfunction)

      		 Returns to normal condition.

      C1741

      C1742

      C1743

      C1744

      		 Height control solenoid valve circuit To interrupt the height control. Returns to normal condition.
      C1745 Exhaust solenoid valve circuit To interrupt the height control. Returns to normal condition.
      C1751 Suspension control relay circuit To interrupt the height control. Returns to normal condition.

      C1752

      C1761

      		 Lock is powered continuously or powered excessively in height control compressor motor To interrupt the height control. Returns to normal condition.
      C1762 Continuous electric current to exhaust solenoid valve To interrupt the height control. Returns to normal condition.
      C1781 Suspension control ECU To continue control. Returns to normal condition.
      C1782 Power source voltage To interrupt the height control and damping control. Returns to normal condition.
      C1783 Vehicle speed sensor circuit Control is canceled after setting the step of the front and rear absorber control actuator at 9. Returns to normal condition.
      C1784 Steering angle sensor To interrupt the damping force of rolling control. Returns to normal condition.
      C1785 Steering control ECU To interrupt the damping force of rolling control. Returns to normal condition.
      C1787 Yaw rate sensor To interrupt the damping force of rolling control. Returns to normal condition.
      C1789

      • CAN communication system

      • Hybrid vehicle control ECU

      • Suspension control ECU

      • AFS ECU

      		 The vehicle height is fixed at the normal height and damping control is canceled after setting the step of the front and rear absorber control actuator to 9. Returns to normal condition.

      U0100

      U0101

      U0124

      U0293

      		 CAN communication system To continue control. Returns to normal condition.

      U0122

      U0132

      		 CAN communication system Control is canceled after setting the step of the front and rear absorber control actuator at 9. Returns to normal condition.

      U0126

      U0130

      		 CAN communication system To interrupt the damping force of rolling control. Returns to normal condition.