Fail-Safe Chart
- FAIL-SAFE FUNCTION
- 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
AIR SUSPENSION SPECIFICATIONDTC Chart Malfunction Item Fail-safe Operation Fail-safe Deactivation Conditions C1711/11
C1712/12
C1713/13
C1714/14Height control sensor circuit To interrupt the height control and damping control. Returns to normal condition. C1715/15
C1716/16
C1717/17Acceleration sensor circuit To interrupt the damping control. Returns to normal condition. C1731/31
C1732/32
C1733/33
C1734/34Absorber control actuator circuit To interrupt the damping control, after moving to the 9th step.
(Except malfunction actuator)Returns to normal condition. C1741/41
C1742/42
C1743/43
C1744/44Height control solenoid valve circuit To interrupt the height control. Returns to normal condition. C1745/45 Exhaust solenoid valve circuit To interrupt the height control. Returns to normal condition. C1751/51 Suspension control relay circuit To interrupt the height control. Return to normal condition. C1752/52
C1761/61Lock is powered continuously or powered excessively in height control compressor motor To interrupt the height control. Returns to normal condition. C1762/62 Continuous electric current to exhaust solenoid valve To interrupt the height control. Returns to normal condition. C1781/81 Suspension control ECU To continue control. Returns to normal condition. C1782/82 Power source voltage To interrupt the height control and damping control. Returns to normal condition. C1783/83 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. C1784/84 Steering angle sensor To interrupt the damping force of rolling control. Returns to normal condition. C1785/85 Steering control ECU To interrupt the damping force of rolling control. Returns to normal condition. C1787/87 C1788/88 Yaw & acceleration sensor To interrupt the damping force of rolling control. Returns to normal condition. U0100/71
U0101/71
U0124/71CAN communication system To continue control. Returns to normal condition. U0122/71
U0132/71CAN communication system Control is canceled after setting the step of the front and rear absorber control actuator at 9. Returns to normal condition. U0126/71
U0130/71CAN communication system To interrupt the damping force of rolling control. Returns to normal condition.
- 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.