DTC C104A-28: Front Axle Piston Pressure Regulating Valve - Signal bias level out of range/zero adjustment failure: Action
- Refer to the appropriate system wiring diagrams and check the dynamic response front actuator piston-side pressure regulating valve coil circuit, harness and connectors (positive or negative) for short circuit to another circuit. Repair circuit as required, Clear the DTCs and retest
- If the fault persists, install a new dynamic response control module