DTC C1043-26: Rear Axle Piston Pressure Sensor - Signal rate of change below threshold: Action

Check dynamic response system hydraulic fluid levels. Rectify as required
Check dynamic response system secondary circuit for leaks. Repair as required
Refer to the and check the dynamic response rear actuator piston-side pressure sensor circuit for short circuit to another circuit. Repair circuit as required, clear the DTCs and retest
Reset pressure sensor offset settings and clear adaptive data. Clear the DTCs and retest
If the fault persists, install a new dynamic response valve block as required and reset adaptive data. Clear the DTCs and retest