Case IH Tractor Fault Code DCU 19046: Urea Pressure Sensor Supply Voltage Error
What DCU 19046 Means Case IH fault code DCU 19046 is an emissions / aftertreatment fault reported by the DCU controller. The official description is: UREA pressure sensor in box (electrical) | supply voltage error | P204A Reagent-pressure sensor-open circuit. In practical terms, the DCU is detecting an electrical problem with the urea / reagent…