Fail Safe Operation
FAIL-SAFE FUNCTIONWhen a malfunction occurs in the parts shown in the talk below, the fail-safe system actinates to:
1. illuminate the active suspension warning lamp,
2. cut off the current to the fail-safe valve, and/or
3. regulate the pressure control valve operation.
This gradually changes the oil pressure (applied to the actuators for the four wheels) to a uniform pressure so that the vehicle can continue to be driven.
NOTES:
- A sound is produced when the fail-safe valve operates. This is not an indication of a problem. Since, the fail-safe valve closes normal oil passages and, simultaneously, links the supply pressure line [9,807 kPa (100 kg/cm2, 1,422 psi)] with the return pressure line [0 kPa (0 kg/cm2, 0 psi)].
- When pressure control valve function stops, control current flowing to solenoid is cut oft (0 amperes). It might change briefly the vehicle height.