Detroit DD15 GHG14 (2014-16) Fault Code: SPN 639 FMI 14 (CPC) Data Link Failure
NOTE: Please see the step by step troubleshooting procedures for this specific code.
NOTE: If other codes are present, fix those first. Otherwise, check other modules for codes as well and communication status. Fix those first.
![JOHN DEERE PARTS ADVISOR & HITACHI 2.24.2 [2023.07] - ECUFORCETRUCK EPC](https://www.ecuforcetruck.com/wp-content/uploads/2023/09/1-300x300.png)
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