Detroit DD15 GHG14 (2014-16) Fault Code: SPN 639 FMI 13 (CPC) HDMS Fan is Configured and the Message was Not Received or has Stopped Arriving

NOTE: Please see the step by step troubleshooting procedures for this specific code.

NOTE: If other codes are present, fix those first. Otherwise, there is an incorrect parameter programmed in the engine ECM.