With EAS at standard height and without any faults, removed EAS pump relay and connected it directly.
Pump kept running (engine idling) and after 3 1/2 mts car suddenly went to off road height. the EAS switch top LED blinking and the instrument cluster showing the EAS light. stopped the pump fearing an air bag blow out.
Afterwards, pushed the switch to standard height and car slowly dropped to that height, no error messages. all back to normal.
May be tank input line is partially blocked shifting pump are to all 4 wheels. Can someone explain this please?