Case IH Tractor ARM 18042 Fault Code Guide
What ARM 18042 Means Fault code ARM 18042 on a Case IH tractor is an Armrest Controls fault. The official description is: “EHR 2 lever position – voltage too low.” In practical terms, the ARM controller is detecting a lever-position signal for EHR 2 that is lower than the expected electrical range. This does not…