To communicate the addition of a pre-authorization requirement for replacing ECMs on CM2450 products. Effective 02-Feb-2021, due to a global industry-wide shortage of chips required to manufacture some components, Pre-authorization requirements are being implemented when diagnosing the Engine Control Module (ECM) on Cummins products equipped with CM2450 modules. Diagnostic support and pre-authorization will be available … Continue reading Update to Pre-Authorization Requests (WAM section 111-502-004)