Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3236 FMI 9 (ACM) Exhaust Mass Signal Not Available via Controller Area Network

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

NOTE: If any engine ECMs have been programmed recently, clear codes and release vehicle to customer.

NOTE: Otherwise, clear codes, turn key off for 5 minutes, and re-start. If it comes back, use 625-9 to troubleshoot.