Sensor malfunction in the secondary hydraulic system.
Check the flow switch in the secondary hydraulic circuit, the connectors, and wiring.
What you'll see
It is no longer possible to diagnose the secondary hydraulic system - as a consequence, the self-test of the secondary hydraulic system cannot be performed and thus the redundancy of the power steering system is jeopardized. * A warning will be displayed in the ICL. * If a simultaneous sensor malfunction in the primary hydraulic system is present, a (different) warning will be displayed in the ICL. * If a simultaneous hydraulic malfunction in the primary hydraulic system is present, a (different) warning will be displayed in the ICL.
System reaction
Amber failure in circ 1 and 2 Amber failure steering circ 2 Red failure in circ 1 and 2
Diagnostic depth
Faulty power steering flow switch in the secondary hydraulic system – it indicates a flow though there is not any. Plausibility check between the sensor (power steering driven by electro-hydraulic pump) and control-state.
• Defect wiring o loose connectors o open circuit • Defect connectors • Defect flow switch (power steering driven by electro-hydraulic pump).