NOTE: Please see the step by step troubleshooting procedures for this specific code.
PROBABLE CAUSES:
1. Accelerator pedal harness/connector.
2. Accelerator pedal.
Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3509 FMI 4 (ACM) The 5V Sensor Supply Bank 1 Circuit Failed Low
Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3509 FMI 4 (MCM) 5V Sensor Supply Bank 1 Circuit Failed Low
Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3509 FMI 3 (ACM) The 5V Sensor Supply Bank 1 Circuit Failed High
Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3509 FMI 3 (MCM) 5V Sensor Supply Bank 1 Circuit Failed High
Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3490 FMI 5 (ACM) Post Run Indicator Lamp
Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3490 FMI 4 (ACM) Post Run Indicator Lamp